Assalamualaikum,
Lama sungguh tidak menjenguk di laman sendiri.Maklumlah ada ruang baru untuk meluahkan perasaan lalu tempat bermula mudah dilupakan.Walau apa pun,tempat pertama bercambah minat itu menjadi kenangan.Selepas aku menyiapkan semua tugasan yang diamanahkan,aku berjanji akan menyinggah di ruang ini untuk berkongsi suka duka setiap hari.Maklumlah selama ini aku menulis di dalam diari,namun setelah diari bertulis tangan itu tidak lagi wujud maka akan aku jadikan ruang ini sebagai diari mayaku.Banyak sungguh perasaan yang hendak kukongsi di sini.Maklumlah dalam saat meniti usi tua ini,himpunan kawan pun tak ramai,maka tak tau nak kuluahkan kepada siapa rasa hati yang selalu meronta-ronta,menggelora,kadang2 menggelegak dalam jiwa lalu tempat inilah yang akan menghimpunkan suka dukaku pada tahun 2010 nanti,tungguuuu........
Tuesday, December 29, 2009
Wednesday, September 2, 2009
Pseudoscience
Salam Ramadan,
beberapa hari lepas,seorang budak mentah mencabarku pengetahuan tentang pseudoscience
A pseudoscience is a belief or process which masquerades as science in an attempt to claim a legitimacy which it would not otherwise be able to achieve on its own terms; it is often known as fringe- or alternative science. The most important of its defects is usually the lack of the carefully controlled and thoughtfully interpreted experiments which provide the foundation of the natural sciences and which contribute to their advancement.
Of course, the pursuit of scientific knowledge usually involves elements of intuition and guesswork; experiments do not always test a theory adequately, and experimental results can be incorrectly interpreted or even wrong. In legitimate science, however, these problems tend to be self-correcting, if not by the original researchers themselves, then through the critical scrutiny of the greater scientific community. Critical thinking is an essential element of science.
Some other kinds of defective science
There have been several well-documented instances in which the correction process referred to above was delayed until after the initial incorrect interpretation became widely publicized, resulting in what has been called pathological science. The best known of these incidents are the "discoveries" of N-rays, of polywater, and of cold fusion. All of these could have been averted if the researchers had not been so enthused with their results that they publicized them before they had received proper review by others. Human nature being what it is, there is always some danger of this happening; to discourage it, most of the prestigious scientific journals will refuse to accept reports of noteworthy work that has already been made public.
Another term, junk science, is often used to describe scientific theories or data which, while perhaps legitimate in themselves, are believed to be mistakenly used to support an opposing position. There is usually an element of political or ideological bias in the used of the term. Thus the arguments in favor of limiting the use of fossil fuels in order to reduce global warming are often characterized as junk science by those who do not wish to see such restrictions imposed, and who claim that other factors may well be the cause of global warming. A wide variety of commercial advertising (ranging from hype to outright fraud) would also fall into this category; at its most egregious it might better be described as deceptive science.
"9944100% Pure: It Floats"
This description of Ivory Soap is a classic example of junk science from the 19th century. Not only is the term "pure" meaningless when applied to an undefined mixture such as hand soap, but the implication that its ability to float is evidence of this purity is deceptive. The low density is achieved by beating air bubbles into it, actually reducing the "purity" of the product and in a sense cheating the consumer.
Finally, there is just plain bad science, which would logically encompass all of the evils being discussed here, but is commonly used to describe well-intentioned but incorrect, obsolete, incomplete, or over-simplified expositions of scientific ideas. An example would be the statement that electrons revolve in orbits around the atomic nucleus, a picture that was discredited in the 1920's, but is so much more vivid and easily grasped than the one that supplanted it that it shows no sign of dying out.
"It's only a theory"
In ordinary conversation, the word "theory" connotes an opinion, a conjecture, or a supposition. But in science, the term has a much more limited meaning. A scientific theory is an attempt to explain some aspect of the natural world in terms of empirical evidence and observation. It commonly draws upon established principles and knowledge with the aim of extending them in a logical and consistent way that enables one to make useful predictions. All scientific theories are tentative and subject to being tested and modified. As theories become more mature, they grow into more organized bodies of knowledge that enable us to understand and predict a wider range of phenomena. Examples of such theories are quantum theory, Einstein's theories of relativity, and evolution.
Scientific theories fall into two categories:
Theories that have been shown to be incorrect, usually because they are not consistent with new observations;
All other theories
In other words
Theories cannot be proven to be correct; there is always the possibility that further observations will disprove the theory.
A theory that cannot be refuted or falsified is not a scientific theory.
For example, the theories that underlie astrology (the doctrine that the positions of the stars can influence one's life) are not falsifiable because they, and the predictions that follow from them, are so vaguely stated that the failure of these predictions can always be "explained away" by assuming that various other influences were not taken into account. It is similarly impossible to falsify so-called "creation science" or "intelligent design" because one can simply evoke the "then a miracle occurs" (as in the famous Sidney Harris cartoon) at any desired stage.
How can you recognize pseudoscience?
How to rate a work of pseudoscience
is a 30-point checklist directed mainly at archaeology, but much of it seems applicable to other fields as well.
A similar set of questions can be found on this Baloney Detection page
There is no single test that unambiguously distinguishes between science and pseudoscience, but as the two diverge more and more from one another, certain differences become apparent, and these tend to be remarkably consistent across all fields of interest.
In examining the following table, it might be helpful to consider examples of astronomy vs. astrology, or of chemistry vs. alchemy, which at one time were single fields that gradually diverged into sciences and pseudosciences.
science pseudoscience comment
The primary goal of science is to achieve a more complete and more unified understanding of the physical world. Pseudosciences are more likely to be driven by ideological, cultural, or commercial goals.
Some examples: astrology (from ancient Babylonian culture,) UFO-ology (popular culture and mistrust of government), Creation Science (attempt to justify a literal interpretation of the Bible), "structure-altered" waters (commercial quackery.)
Most scientific fields are the subjects of intense research which result in the continual expansion of knowledge in the discipline. The field has evolved very little since it was first established. The small amount of research and experimentation that is carried out is generally done more to justify the belief than to extend it. The search for new knowledge is the driving force behind the evolution of any scientific field. Nearly every new finding raises new questions that beg exploration. There is little evidence of this in the pseudosciences.
Workers in the field commonly seek out counterexamples or findings that appear to be inconsistent with accepted theories.
In the pseudosciences, a challenge to accepted dogma is often considered a hostile act if not heresy, and leads to bitter disputes or even schisms. Sciences advance by accommodating themselves to change as new information is obtained.
In science, the person who shows that a generally accepted belief is wrong or incomplete is more likely to be considered a hero than a heretic.
Observations or data that are not consistent with current scientific understanding, once shown to be credible, generate intense interest among scientists and stimulate additional studies. Observations or data that are not consistent with established beliefs tend to be ignored or actively suppressed. Have you noticed how self-styled psychics always seem eager to announce their predictions for the new year, but never like to talk about how many of last years' predictions were correct?
Science is a process in which each principle must be tested in the crucible of experience and remains subject to being questioned or rejected at any time. The major tenets and principles of the field are often not falsifiable, and are unlikely ever to be altered or shown to be wrong. Enthusiasts incorrectly take the logical impossibility of disproving a pseudoscientific priniciple as evidence of its validity.
Scientific ideas and concepts must stand or fall on their own merits, based on existing knowledge and on evidence. Pseudoscientific concepts tend to be shaped by individual egos and personalities, almost always by individuals who are not in contact with mainstream science. They often invoke authority (a famous name, for example) for support. Have you ever noticed how proponents of pseudoscientific ideas are more likely to list all of the degrees they have?
Scientific explanations must be stated in clear, unambigous terms. Pseudoscientific explanations tend to be vague and ambiguous, often invoking scientific terms in dubious contexts. Phrases such as "energy vibrations" or "subtle energy fields" may sound impressive, but they are essentially meaningless.
Why is it important to recognize pseudoscience?
Many scientists' ordinary response to pseudoscientific claims is simply to laugh at them. But mythology has always been an important part of human culture, often by giving people the illusion of having some direct control over their lives. This can lead to their becoming advocates for various kinds of health quackery, to commercial scams, and to cult-like organizations such as scientology. Worst of all, they can pressure political and educational circles to adopt their ideologies.
A good summary of some of the consequences can be found in Prof. Steven Dutch's article When the Cranks Rule.
Does the "establishment" actively suppress new and unconventional ideas?
Anyone who has been around for long enough has encountered statements like these:
An inventor's design for a device that utilizes water as a fuel has been bought up and suppressed by the oil companies.
"Alternative health" techniques (homeopathy, chiropractic, chelation therapy— you name it!) are actively suppressed by the medical profession or the pharmaceutical industry in a desperate attempt to serve their selfish interests.
Reports of unidentified flying objects (UFO's) are suppressed by the U.S. Government in an attempt to prevent panic and/or to maintain control over citizens.
Editors of scientific journals and the reviewers they call on to assess the worth of submitted papers reject out-of-hand anything that comes from persons who are not members of the scientific "establishment" or which report results not consistent with presently-accepted science.
Claims of these kinds are frequently made and widely believed, especially by those who are inclined to see conspiracies around every corner. There is little if any evidence for any of these claims. The real reason that new devices or new theories get thrown aside is that the arguments or evidence adduced to support them is inadequate or not credible. The individuals who believe themselves to be unfairly thwarted by the scientific community are very often so isolated from it that they are unable to appreciate its norms of clarity, rigor, and consistency with existing science.
... but they laughed at Galileo, at Thompson, and at Wegner.
Well, with Galileo, they didn't exactly laugh; it was more a case of challenge to religious doctrine that forced him to recant his assertion that the Sun, and not the Earth, is at the center of the solar system. There have been innumerable cases in which the world was simply not ready to accept a new idea. This was especially common before the scientific method had been developed, and before the technology needed to apply it had become available.
When J.J. Thomson discovered evidence that the atom is not the ultimate fundamental particle and could be broken up into smaller units, even Thompson himself was reluctant to accept it, and he became a laughingstock for several years until more definitive evidence became available.
Alfred Wegener's theory of continental drift was bitterly attacked when it was first published in 1915, and it did not become generally accepted until about 50 years later. Others had made similar proposals based on the way the continents of Africa and South America could be fitted together, but Wegener was the first to make a careful study of fossil and geological similarities between the two continents. Nevertheless, the idea that continents could float around was too hard to accept at a time when nothing was known about the interior structure of the Earth, and the evidence he presented was rejected as inadequate.
But even in more recent times, the world of science has been reluctant to accept some important challenges made by its own members; see this National Center for Science Education page that profiles the difficulties faced by scientists such as Barbara McClintock (genetic recombination), Lyn Margulis (endosymbiosis and evolution), and Barry Marshall (bacterial origin of ulcers).
On the other hand, the even-more-revolutionary concepts of special- and general relativity, and of quantum theory (which developed in several stages), achieved rapid acceptance when they were first presented, as did Louis Pasteur's germ theory of disease. In all of these cases the new theories provided credible explanations for what was previously unexplainable, and the tools for confirming them existed at the time, or in the case of general relativity, would soon become available.
Some interesting places to look
"It's been my policy to view the Internet not as an 'information highway,' but as an electronic asylum filled with babbling loonies." —Mike Royko
This quote from the late columnist was found at Donald Simanek's site -- a wonderful collection of links that contains many references to science fraud, pseudoscience, fringe medicine, perpetual motion, and generally weird ideas.
Some useful tools
What is truth? Not a simple question to answer, but this excellent page at the Internet Encyclopedia of Philosophy will help show you the way.
Critical Thinking A compilation of Web-based resources on the subject.
Pseudoscience and Quackery SWICKI search
anthrax cures cellulite christian brothers csct inc dr suster german medicine growth hormone releaser health freedom natural cures Natural Health Products Directorate pacific health center quackbusters schoch stephen barrett taxtyranny.ca TCM UFOs Viacreme vitalizer plus water scams
Grab this swicki from eurekster.com
Bad Science
"What the Bleep Do We Know?" - a review of this popular and highly misleading 2004 film.
Bad-science examples in the various disciplines (Alistair Fraser)
How to deal with bad- and questionable science is the topic of this anonymous essay.
Ten myths of science: Reexamining what we think we know.
Junk Science
Doubt is Their Product: How Industry's Assult on Science Threatens Your Health - this 2008 book by David Michaels provides a glimpse of tactics used by industry to manipulate science and influence public policy. Just as the tobacco industry did in the 1950's, the idea is to cast doubt on scientific studies that threaten their products. More details in this New Scientist review.
JunkScience.com: "All the junk that's fit to debunk" - and you will find it in abundance here— unfortunately, compounded by what many would consider a bias not atypical of the author's affiliation with the Cato Institute and FoxNews. This site can nevertheless serve as a source of student exercises on the fine art of critical thinking.
Junk science in the courtroom - a compendium of horrendous examples
AquaScams - my site on commercial water-treatment pseudoscience (magnetic water treatments, etc.)
Common errors in the use of statistics can transform science into junk science. According to the 1998 Washington Times article Pseudoscience going up in smoke, this is what happened to create the public scare about so-called "second-hand smoke."
Medical pseudoscience, fringe medicine
QuackWatch - a good source for solid information on medical flim-flam such as amalgam dental filling removal, etc.
Canadian Quackery Watch - many good articles on alternative health scams
HealthWatcher - a well organized anti-health-scam site maintained by a Canadian doctor
Homeopathy - This Wikipedia article presents a good overview and thorough history with many references; the HomeoWatch site is more critical.
Water Cluster Quackery - my page on bogus "structure-altered waters" for the alternative health market.
Of course, even Pasteur is not immune to Web-based rants such as this one which attempts to refute the Germ Theory of disease!
Pathological science
Nicholas Turro's page has a fine discussion of this topic with many references.
Pseudoscience
is an exceptionally well-organized set of links to "cranks, crackpots, kooks and loons on the Net", arranged into more than 100 categories; you can be happily lost in here for a long time!
This pseudoscience page by Edward Lipson offers a well-organized wealth of links on many areas of pseudoscience.
Putting Pseudoscience to work. See Using bad science to teach good chemistry by Michael Epstein, J.Chem.Ed. 1998: 75(11) 1399-1404.
Fringe Archaeology - Keith Matthews' Cult Archaeology site covers everything from von Däniken to lost continents
The Scientific Exploration of Astrology contains links to variety of critical articles on astrology, its history, psychology, and tests of its validity.
Jim Loy's Peudoscience Page - nicely organized by topic and sub-topic.
Science Hoaxes - A Guardian article on the Piltdown Man fraud and other hoaxes
Brian Dunning's excellent Skeptoid site offers weekly takes pseudoscientific topics in both text and podcast formats.
Pseudoscience books
Henry Bauer's book Science or Pseudoscience: Magnetic Healing, Psychic Phenomena, and Other Heterodoxies is described (and can be purchased) at this U. Illinois Press site.
This review of Voodoo Science: The Road from Foolishness to Fraud by Robert L. Park (Oxford U. P., New York, 2000) from Physics Today.
Skepticism and debunking
The Skeptic's Dictionary: A Critical Survey of Questionable Therapies, Eccentric Beliefs, Amusing Deceptions and Dangerous Delusions. This excellent site by a professor of philosophy at Sacramento City College contains hundreds of skeptical definitions and essays on occult, paranormal, supernatural and pseudoscientific ideas and practices with references to the best skeptical literature. Translations into several other languages are available.
Skeptical information links - a well-organized collection of links by Jim Lippard.
Dowsing for dollars: some thoughts on B.S. detection
Dr. Stephen Barrett on what makes people vulnerable to quackery
Magazines
The following two magazines are of general interest and fun to read; one or both should be on the subscription list of any school library. Both sites provide searchable links to past articles.
Skeptic - published by the Skeptics' Society
Skeptical Inquirer "The magazine for science and reason", published by CSICOP.
Weird
The Anders Mad Scientist page is not easy to classify, but the many link titles seem to cover just about every form of pseudoscientific weirdness.
Okay,sekarang apa lagi nak tanya tentang pseudoscience?
beberapa hari lepas,seorang budak mentah mencabarku pengetahuan tentang pseudoscience
A pseudoscience is a belief or process which masquerades as science in an attempt to claim a legitimacy which it would not otherwise be able to achieve on its own terms; it is often known as fringe- or alternative science. The most important of its defects is usually the lack of the carefully controlled and thoughtfully interpreted experiments which provide the foundation of the natural sciences and which contribute to their advancement.
Of course, the pursuit of scientific knowledge usually involves elements of intuition and guesswork; experiments do not always test a theory adequately, and experimental results can be incorrectly interpreted or even wrong. In legitimate science, however, these problems tend to be self-correcting, if not by the original researchers themselves, then through the critical scrutiny of the greater scientific community. Critical thinking is an essential element of science.
Some other kinds of defective science
There have been several well-documented instances in which the correction process referred to above was delayed until after the initial incorrect interpretation became widely publicized, resulting in what has been called pathological science. The best known of these incidents are the "discoveries" of N-rays, of polywater, and of cold fusion. All of these could have been averted if the researchers had not been so enthused with their results that they publicized them before they had received proper review by others. Human nature being what it is, there is always some danger of this happening; to discourage it, most of the prestigious scientific journals will refuse to accept reports of noteworthy work that has already been made public.
Another term, junk science, is often used to describe scientific theories or data which, while perhaps legitimate in themselves, are believed to be mistakenly used to support an opposing position. There is usually an element of political or ideological bias in the used of the term. Thus the arguments in favor of limiting the use of fossil fuels in order to reduce global warming are often characterized as junk science by those who do not wish to see such restrictions imposed, and who claim that other factors may well be the cause of global warming. A wide variety of commercial advertising (ranging from hype to outright fraud) would also fall into this category; at its most egregious it might better be described as deceptive science.
"9944100% Pure: It Floats"
This description of Ivory Soap is a classic example of junk science from the 19th century. Not only is the term "pure" meaningless when applied to an undefined mixture such as hand soap, but the implication that its ability to float is evidence of this purity is deceptive. The low density is achieved by beating air bubbles into it, actually reducing the "purity" of the product and in a sense cheating the consumer.
Finally, there is just plain bad science, which would logically encompass all of the evils being discussed here, but is commonly used to describe well-intentioned but incorrect, obsolete, incomplete, or over-simplified expositions of scientific ideas. An example would be the statement that electrons revolve in orbits around the atomic nucleus, a picture that was discredited in the 1920's, but is so much more vivid and easily grasped than the one that supplanted it that it shows no sign of dying out.
"It's only a theory"
In ordinary conversation, the word "theory" connotes an opinion, a conjecture, or a supposition. But in science, the term has a much more limited meaning. A scientific theory is an attempt to explain some aspect of the natural world in terms of empirical evidence and observation. It commonly draws upon established principles and knowledge with the aim of extending them in a logical and consistent way that enables one to make useful predictions. All scientific theories are tentative and subject to being tested and modified. As theories become more mature, they grow into more organized bodies of knowledge that enable us to understand and predict a wider range of phenomena. Examples of such theories are quantum theory, Einstein's theories of relativity, and evolution.
Scientific theories fall into two categories:
Theories that have been shown to be incorrect, usually because they are not consistent with new observations;
All other theories
In other words
Theories cannot be proven to be correct; there is always the possibility that further observations will disprove the theory.
A theory that cannot be refuted or falsified is not a scientific theory.
For example, the theories that underlie astrology (the doctrine that the positions of the stars can influence one's life) are not falsifiable because they, and the predictions that follow from them, are so vaguely stated that the failure of these predictions can always be "explained away" by assuming that various other influences were not taken into account. It is similarly impossible to falsify so-called "creation science" or "intelligent design" because one can simply evoke the "then a miracle occurs" (as in the famous Sidney Harris cartoon) at any desired stage.
How can you recognize pseudoscience?
How to rate a work of pseudoscience
is a 30-point checklist directed mainly at archaeology, but much of it seems applicable to other fields as well.
A similar set of questions can be found on this Baloney Detection page
There is no single test that unambiguously distinguishes between science and pseudoscience, but as the two diverge more and more from one another, certain differences become apparent, and these tend to be remarkably consistent across all fields of interest.
In examining the following table, it might be helpful to consider examples of astronomy vs. astrology, or of chemistry vs. alchemy, which at one time were single fields that gradually diverged into sciences and pseudosciences.
science pseudoscience comment
The primary goal of science is to achieve a more complete and more unified understanding of the physical world. Pseudosciences are more likely to be driven by ideological, cultural, or commercial goals.
Some examples: astrology (from ancient Babylonian culture,) UFO-ology (popular culture and mistrust of government), Creation Science (attempt to justify a literal interpretation of the Bible), "structure-altered" waters (commercial quackery.)
Most scientific fields are the subjects of intense research which result in the continual expansion of knowledge in the discipline. The field has evolved very little since it was first established. The small amount of research and experimentation that is carried out is generally done more to justify the belief than to extend it. The search for new knowledge is the driving force behind the evolution of any scientific field. Nearly every new finding raises new questions that beg exploration. There is little evidence of this in the pseudosciences.
Workers in the field commonly seek out counterexamples or findings that appear to be inconsistent with accepted theories.
In the pseudosciences, a challenge to accepted dogma is often considered a hostile act if not heresy, and leads to bitter disputes or even schisms. Sciences advance by accommodating themselves to change as new information is obtained.
In science, the person who shows that a generally accepted belief is wrong or incomplete is more likely to be considered a hero than a heretic.
Observations or data that are not consistent with current scientific understanding, once shown to be credible, generate intense interest among scientists and stimulate additional studies. Observations or data that are not consistent with established beliefs tend to be ignored or actively suppressed. Have you noticed how self-styled psychics always seem eager to announce their predictions for the new year, but never like to talk about how many of last years' predictions were correct?
Science is a process in which each principle must be tested in the crucible of experience and remains subject to being questioned or rejected at any time. The major tenets and principles of the field are often not falsifiable, and are unlikely ever to be altered or shown to be wrong. Enthusiasts incorrectly take the logical impossibility of disproving a pseudoscientific priniciple as evidence of its validity.
Scientific ideas and concepts must stand or fall on their own merits, based on existing knowledge and on evidence. Pseudoscientific concepts tend to be shaped by individual egos and personalities, almost always by individuals who are not in contact with mainstream science. They often invoke authority (a famous name, for example) for support. Have you ever noticed how proponents of pseudoscientific ideas are more likely to list all of the degrees they have?
Scientific explanations must be stated in clear, unambigous terms. Pseudoscientific explanations tend to be vague and ambiguous, often invoking scientific terms in dubious contexts. Phrases such as "energy vibrations" or "subtle energy fields" may sound impressive, but they are essentially meaningless.
Why is it important to recognize pseudoscience?
Many scientists' ordinary response to pseudoscientific claims is simply to laugh at them. But mythology has always been an important part of human culture, often by giving people the illusion of having some direct control over their lives. This can lead to their becoming advocates for various kinds of health quackery, to commercial scams, and to cult-like organizations such as scientology. Worst of all, they can pressure political and educational circles to adopt their ideologies.
A good summary of some of the consequences can be found in Prof. Steven Dutch's article When the Cranks Rule.
Does the "establishment" actively suppress new and unconventional ideas?
Anyone who has been around for long enough has encountered statements like these:
An inventor's design for a device that utilizes water as a fuel has been bought up and suppressed by the oil companies.
"Alternative health" techniques (homeopathy, chiropractic, chelation therapy— you name it!) are actively suppressed by the medical profession or the pharmaceutical industry in a desperate attempt to serve their selfish interests.
Reports of unidentified flying objects (UFO's) are suppressed by the U.S. Government in an attempt to prevent panic and/or to maintain control over citizens.
Editors of scientific journals and the reviewers they call on to assess the worth of submitted papers reject out-of-hand anything that comes from persons who are not members of the scientific "establishment" or which report results not consistent with presently-accepted science.
Claims of these kinds are frequently made and widely believed, especially by those who are inclined to see conspiracies around every corner. There is little if any evidence for any of these claims. The real reason that new devices or new theories get thrown aside is that the arguments or evidence adduced to support them is inadequate or not credible. The individuals who believe themselves to be unfairly thwarted by the scientific community are very often so isolated from it that they are unable to appreciate its norms of clarity, rigor, and consistency with existing science.
... but they laughed at Galileo, at Thompson, and at Wegner.
Well, with Galileo, they didn't exactly laugh; it was more a case of challenge to religious doctrine that forced him to recant his assertion that the Sun, and not the Earth, is at the center of the solar system. There have been innumerable cases in which the world was simply not ready to accept a new idea. This was especially common before the scientific method had been developed, and before the technology needed to apply it had become available.
When J.J. Thomson discovered evidence that the atom is not the ultimate fundamental particle and could be broken up into smaller units, even Thompson himself was reluctant to accept it, and he became a laughingstock for several years until more definitive evidence became available.
Alfred Wegener's theory of continental drift was bitterly attacked when it was first published in 1915, and it did not become generally accepted until about 50 years later. Others had made similar proposals based on the way the continents of Africa and South America could be fitted together, but Wegener was the first to make a careful study of fossil and geological similarities between the two continents. Nevertheless, the idea that continents could float around was too hard to accept at a time when nothing was known about the interior structure of the Earth, and the evidence he presented was rejected as inadequate.
But even in more recent times, the world of science has been reluctant to accept some important challenges made by its own members; see this National Center for Science Education page that profiles the difficulties faced by scientists such as Barbara McClintock (genetic recombination), Lyn Margulis (endosymbiosis and evolution), and Barry Marshall (bacterial origin of ulcers).
On the other hand, the even-more-revolutionary concepts of special- and general relativity, and of quantum theory (which developed in several stages), achieved rapid acceptance when they were first presented, as did Louis Pasteur's germ theory of disease. In all of these cases the new theories provided credible explanations for what was previously unexplainable, and the tools for confirming them existed at the time, or in the case of general relativity, would soon become available.
Some interesting places to look
"It's been my policy to view the Internet not as an 'information highway,' but as an electronic asylum filled with babbling loonies." —Mike Royko
This quote from the late columnist was found at Donald Simanek's site -- a wonderful collection of links that contains many references to science fraud, pseudoscience, fringe medicine, perpetual motion, and generally weird ideas.
Some useful tools
What is truth? Not a simple question to answer, but this excellent page at the Internet Encyclopedia of Philosophy will help show you the way.
Critical Thinking A compilation of Web-based resources on the subject.
Pseudoscience and Quackery SWICKI search
anthrax cures cellulite christian brothers csct inc dr suster german medicine growth hormone releaser health freedom natural cures Natural Health Products Directorate pacific health center quackbusters schoch stephen barrett taxtyranny.ca TCM UFOs Viacreme vitalizer plus water scams
Grab this swicki from eurekster.com
Bad Science
"What the Bleep Do We Know?" - a review of this popular and highly misleading 2004 film.
Bad-science examples in the various disciplines (Alistair Fraser)
How to deal with bad- and questionable science is the topic of this anonymous essay.
Ten myths of science: Reexamining what we think we know.
Junk Science
Doubt is Their Product: How Industry's Assult on Science Threatens Your Health - this 2008 book by David Michaels provides a glimpse of tactics used by industry to manipulate science and influence public policy. Just as the tobacco industry did in the 1950's, the idea is to cast doubt on scientific studies that threaten their products. More details in this New Scientist review.
JunkScience.com: "All the junk that's fit to debunk" - and you will find it in abundance here— unfortunately, compounded by what many would consider a bias not atypical of the author's affiliation with the Cato Institute and FoxNews. This site can nevertheless serve as a source of student exercises on the fine art of critical thinking.
Junk science in the courtroom - a compendium of horrendous examples
AquaScams - my site on commercial water-treatment pseudoscience (magnetic water treatments, etc.)
Common errors in the use of statistics can transform science into junk science. According to the 1998 Washington Times article Pseudoscience going up in smoke, this is what happened to create the public scare about so-called "second-hand smoke."
Medical pseudoscience, fringe medicine
QuackWatch - a good source for solid information on medical flim-flam such as amalgam dental filling removal, etc.
Canadian Quackery Watch - many good articles on alternative health scams
HealthWatcher - a well organized anti-health-scam site maintained by a Canadian doctor
Homeopathy - This Wikipedia article presents a good overview and thorough history with many references; the HomeoWatch site is more critical.
Water Cluster Quackery - my page on bogus "structure-altered waters" for the alternative health market.
Of course, even Pasteur is not immune to Web-based rants such as this one which attempts to refute the Germ Theory of disease!
Pathological science
Nicholas Turro's page has a fine discussion of this topic with many references.
Pseudoscience
is an exceptionally well-organized set of links to "cranks, crackpots, kooks and loons on the Net", arranged into more than 100 categories; you can be happily lost in here for a long time!
This pseudoscience page by Edward Lipson offers a well-organized wealth of links on many areas of pseudoscience.
Putting Pseudoscience to work. See Using bad science to teach good chemistry by Michael Epstein, J.Chem.Ed. 1998: 75(11) 1399-1404.
Fringe Archaeology - Keith Matthews' Cult Archaeology site covers everything from von Däniken to lost continents
The Scientific Exploration of Astrology contains links to variety of critical articles on astrology, its history, psychology, and tests of its validity.
Jim Loy's Peudoscience Page - nicely organized by topic and sub-topic.
Science Hoaxes - A Guardian article on the Piltdown Man fraud and other hoaxes
Brian Dunning's excellent Skeptoid site offers weekly takes pseudoscientific topics in both text and podcast formats.
Pseudoscience books
Henry Bauer's book Science or Pseudoscience: Magnetic Healing, Psychic Phenomena, and Other Heterodoxies is described (and can be purchased) at this U. Illinois Press site.
This review of Voodoo Science: The Road from Foolishness to Fraud by Robert L. Park (Oxford U. P., New York, 2000) from Physics Today.
Skepticism and debunking
The Skeptic's Dictionary: A Critical Survey of Questionable Therapies, Eccentric Beliefs, Amusing Deceptions and Dangerous Delusions. This excellent site by a professor of philosophy at Sacramento City College contains hundreds of skeptical definitions and essays on occult, paranormal, supernatural and pseudoscientific ideas and practices with references to the best skeptical literature. Translations into several other languages are available.
Skeptical information links - a well-organized collection of links by Jim Lippard.
Dowsing for dollars: some thoughts on B.S. detection
Dr. Stephen Barrett on what makes people vulnerable to quackery
Magazines
The following two magazines are of general interest and fun to read; one or both should be on the subscription list of any school library. Both sites provide searchable links to past articles.
Skeptic - published by the Skeptics' Society
Skeptical Inquirer "The magazine for science and reason", published by CSICOP.
Weird
The Anders Mad Scientist page is not easy to classify, but the many link titles seem to cover just about every form of pseudoscientific weirdness.
Okay,sekarang apa lagi nak tanya tentang pseudoscience?
Monday, August 31, 2009
Pahit -manisnya kehidupan
Assalamualaikum,
hidup ini sememangnya indah cuma manusia yang tidak pandai menghayatinya.Seumur hidupku selama ini banyak mensia-siakan nikmat hidup yang diberikan Allah Taala kerana mengejar perkara yang umpama bayang-bayang.Cuma apabila kini usia memasuki alam 40 tahun,barulah aku pandai menikmati hidup dalam erti kata sebenar.Setiap saat amat aku hargai dan syukuri.
Selama ini aku tidak pandai menghargai adik-adikku,malah sebelum ini aku mengharapkan agar mereka berkahwin segera.Namun selepas semalam,aku bertekad biarlah jodoh itu sampai secara semula jadi kepada mereka,tidak perlulah membuat gerakan besar-besaran untuk menjodohkan mereka.Mengapa semalam?
Semalam ialah hari terakhir cuti penggal kedua.Seorang adikku yang dah berkahwin meninggalkan rumah di kampung bersama keluarga untuk kembali ke rumahnya di Muazam kerana sekolah akan dibuka semula hari ini.Ada semacam rasa pilu,perit,sakit singgah di dada,aku rasa jika aku melayan rasa ini sehingga menangis,tangisan itu akan menjadi sesuatu yang sangat menyayat hati.Rasa itu semakin pedih apabila kulihat sorotan mata dan wajah ibu tua yang menghantar anaknya pergi.Ahhhh... tidak sanggup lagi rasanya bertemu selepas ini jika semuanya akan berakhir dengan perpisahan.Begitulah juga perasaan jika setiap adikku yang akan berpergian jauh dariku...Aku membayangkan hari semalam cuma seorang adik yang telah berkeluarga,nanti masa hadapan???Oleh sebab itulah aku ingin menikmati setiap detik kehidupan ini dengan penuh bermakna.
Bagaimana perasaan ini diubati?aku mensyukuri nikmat hidupku apabila mengharungi kehidupan bersama-sama kedua-dua ibu bapaku dan masih ada tiga orang adik yang diam bersamaku di rumah orang tua kami.Sebenarnya di kampungku ini,ramai yang tinggal bersendirian,tidak berkahwin atau menjadi ibu tunggal.Orang seperti De Timah,Busu Jama itu sebenarnya lebih kasihan daripadaku.Aku tidak patut berkeluh kesah dan mengadu malang kepada orang lain kerana sebenarnya nasibku jauh lebih baik daripada orang lain.Perkara seperi itulah yang mengubat lukaku dan memberiku lebih menghargai nikmat kehidupan.Benarlah seperti peribahasa Arab,jika kita menderita kerana kita tidak berkasut,sebenarnya kita lebih baik kerana ramai orang yang langsung tidak mempunyai kaki.Wahai insan,bersyukurlah dengan perkara yang kita miliki dan hargailah perkara yang kita miliki tanpa mengharapkan harta milik orang lain...
hidup ini sememangnya indah cuma manusia yang tidak pandai menghayatinya.Seumur hidupku selama ini banyak mensia-siakan nikmat hidup yang diberikan Allah Taala kerana mengejar perkara yang umpama bayang-bayang.Cuma apabila kini usia memasuki alam 40 tahun,barulah aku pandai menikmati hidup dalam erti kata sebenar.Setiap saat amat aku hargai dan syukuri.
Selama ini aku tidak pandai menghargai adik-adikku,malah sebelum ini aku mengharapkan agar mereka berkahwin segera.Namun selepas semalam,aku bertekad biarlah jodoh itu sampai secara semula jadi kepada mereka,tidak perlulah membuat gerakan besar-besaran untuk menjodohkan mereka.Mengapa semalam?
Semalam ialah hari terakhir cuti penggal kedua.Seorang adikku yang dah berkahwin meninggalkan rumah di kampung bersama keluarga untuk kembali ke rumahnya di Muazam kerana sekolah akan dibuka semula hari ini.Ada semacam rasa pilu,perit,sakit singgah di dada,aku rasa jika aku melayan rasa ini sehingga menangis,tangisan itu akan menjadi sesuatu yang sangat menyayat hati.Rasa itu semakin pedih apabila kulihat sorotan mata dan wajah ibu tua yang menghantar anaknya pergi.Ahhhh... tidak sanggup lagi rasanya bertemu selepas ini jika semuanya akan berakhir dengan perpisahan.Begitulah juga perasaan jika setiap adikku yang akan berpergian jauh dariku...Aku membayangkan hari semalam cuma seorang adik yang telah berkeluarga,nanti masa hadapan???Oleh sebab itulah aku ingin menikmati setiap detik kehidupan ini dengan penuh bermakna.
Bagaimana perasaan ini diubati?aku mensyukuri nikmat hidupku apabila mengharungi kehidupan bersama-sama kedua-dua ibu bapaku dan masih ada tiga orang adik yang diam bersamaku di rumah orang tua kami.Sebenarnya di kampungku ini,ramai yang tinggal bersendirian,tidak berkahwin atau menjadi ibu tunggal.Orang seperti De Timah,Busu Jama itu sebenarnya lebih kasihan daripadaku.Aku tidak patut berkeluh kesah dan mengadu malang kepada orang lain kerana sebenarnya nasibku jauh lebih baik daripada orang lain.Perkara seperi itulah yang mengubat lukaku dan memberiku lebih menghargai nikmat kehidupan.Benarlah seperti peribahasa Arab,jika kita menderita kerana kita tidak berkasut,sebenarnya kita lebih baik kerana ramai orang yang langsung tidak mempunyai kaki.Wahai insan,bersyukurlah dengan perkara yang kita miliki dan hargailah perkara yang kita miliki tanpa mengharapkan harta milik orang lain...
Thursday, August 20, 2009
di ambang ramadan
salam ramadan buat semua,
syukur ke hadrat ilahi kerana dipanjangnya umur saya,ibu bapa,adik-adik serta saudara mara dan sahabat sehingga kami menjadi insan bertuah yang berpeluang mengecapi nikmat ramadan yang penuh keberkatan ini.Azamnya supaya tidak melepaskan peluang sesaat pun kala ramadan dalam memperoleh rahmat Yang Esa.
selain itu penulis bercadang untuk berkongsi kisah-kisah manis saat ramadan ini untuk tatapan bersama.bukan apa,teruja membaca kisah dalam blog'sungai batu de relong'.kalau orang bergelar dr boleh menulis pengalaman lama,inikan pula orang yang belum bergelar,perlulah mengikut jejaknya itu.
gambar yang termuat dalam ruang ini ialah gambar adikku yang bertugas di sarawak,hari ni pulang bercuti seminggu di kampung.alangkah bahagianya melihat wajah ibu hari ini kerana dia tahu anaknya ini akan tiba di rumah dan mengisi rindunya selama seminggu.
Sunday, August 16, 2009
Bagaimana hendak kuluahkan rasa hatiku...
Assalamulaikum,
sebenarnya ada ada rasa yang terbuku di jiwa yang hendak kuluahkan pada hari ini.Oleh sebab ruang bacaanku ini tidak begitu disinggahi ramai,maka rasanya selamat jika aku meluahkan perasaanku di sini.Aku sekadar ingin berkongsi perasaan dan meluahkan tekanan yang semakin menghimpit sekarang ini.
Sebenarnya aku sungguh-sungguh bersimpati dengan ibuku. Bayangkan sejak umurnya 20 tahun melahirkan daku,selepas itu dia melahirkan 8 lagi anak yang seorang meninggal pada usia 12 tahun,lalu tinggallah 7 yang lain itu semuanya lelaki.mungkin membesarkan anak lelaki kala kanak-kanak dan remaja tidak banyak karenah,namun itu bukan persoalannya.Aku tergelak menonton drama Korea"My Too Perfect Sons'yang kini disiarkan di Channel 303,berkenaan seorang ibu yang membesarkan 4 anak lelaki yang setua 40 tahun dan masih tidak berkahwin.Bayangkan ibuku membesarkan 7 anak lelaki dan seorang anak perempuan yang juga setua 40 tahun he he dan hanya seorang yang baru berkahwin!kini 3 anak lelaki dan seorang perempuan tinggal bersamanya!Yang menjadi kasihan ialah anak-anak itu tidak mempunyai perasaan pun untuk menolongnya bersama-sama untuk melakukan kerja yang berat di dapur dan sebagainya.Ibu tua itulah yang bangun seawal 5 pagi memasak untuk anaknya keluar bekerja.Makanan tengah hari juga telah disediakan oleh ibu tua itu.Sekurang-kurangnya tolonglah lapkan meja,sekurangnya tolonglah sapukan sampah,bayangkan anak-anaknya hanya membasuh pinggan yang diguna sendiri,itupun dah cukup baik tolong basuh katanya,pinggan lain yang digunakan bagaimana?ibu tua itulah yang membasuhnya!Memang ada seorang anak yang sungguh baik hati,mendengar kata ibu tua ini.Setiap kali ibu hendak berpergian,anak inilah yang menghantarnya,jika siibu tidak menyukai gadis idaman sianak,maka si anak akan mempertimbangkannya semula,si anak ini memang patuh,bertuah mana-mana gadis yang memilikinya,namun sayangnya hati anak ini masih belum terbuka untuk mana-mana dara.Jadi berbalik kepada kisah ibu tua itu,bagaimana cara untuk meringankan beban si ibu???Jawabnya...KAWINKAN ANAK-ANAK LELAKINYA!!!!!!BIAR ORANG LAIN PULA YANG MERASAI NIKMAT UNTUK HIDUP BERSAMA-SAMA...Jadi sesiapa mencari lelaki idaman,tall,fair/dark,handsome,sila hantar resume ke warislinggi.blogspot.com
sebenarnya ada ada rasa yang terbuku di jiwa yang hendak kuluahkan pada hari ini.Oleh sebab ruang bacaanku ini tidak begitu disinggahi ramai,maka rasanya selamat jika aku meluahkan perasaanku di sini.Aku sekadar ingin berkongsi perasaan dan meluahkan tekanan yang semakin menghimpit sekarang ini.
Sebenarnya aku sungguh-sungguh bersimpati dengan ibuku. Bayangkan sejak umurnya 20 tahun melahirkan daku,selepas itu dia melahirkan 8 lagi anak yang seorang meninggal pada usia 12 tahun,lalu tinggallah 7 yang lain itu semuanya lelaki.mungkin membesarkan anak lelaki kala kanak-kanak dan remaja tidak banyak karenah,namun itu bukan persoalannya.Aku tergelak menonton drama Korea"My Too Perfect Sons'yang kini disiarkan di Channel 303,berkenaan seorang ibu yang membesarkan 4 anak lelaki yang setua 40 tahun dan masih tidak berkahwin.Bayangkan ibuku membesarkan 7 anak lelaki dan seorang anak perempuan yang juga setua 40 tahun he he dan hanya seorang yang baru berkahwin!kini 3 anak lelaki dan seorang perempuan tinggal bersamanya!Yang menjadi kasihan ialah anak-anak itu tidak mempunyai perasaan pun untuk menolongnya bersama-sama untuk melakukan kerja yang berat di dapur dan sebagainya.Ibu tua itulah yang bangun seawal 5 pagi memasak untuk anaknya keluar bekerja.Makanan tengah hari juga telah disediakan oleh ibu tua itu.Sekurang-kurangnya tolonglah lapkan meja,sekurangnya tolonglah sapukan sampah,bayangkan anak-anaknya hanya membasuh pinggan yang diguna sendiri,itupun dah cukup baik tolong basuh katanya,pinggan lain yang digunakan bagaimana?ibu tua itulah yang membasuhnya!Memang ada seorang anak yang sungguh baik hati,mendengar kata ibu tua ini.Setiap kali ibu hendak berpergian,anak inilah yang menghantarnya,jika siibu tidak menyukai gadis idaman sianak,maka si anak akan mempertimbangkannya semula,si anak ini memang patuh,bertuah mana-mana gadis yang memilikinya,namun sayangnya hati anak ini masih belum terbuka untuk mana-mana dara.Jadi berbalik kepada kisah ibu tua itu,bagaimana cara untuk meringankan beban si ibu???Jawabnya...KAWINKAN ANAK-ANAK LELAKINYA!!!!!!BIAR ORANG LAIN PULA YANG MERASAI NIKMAT UNTUK HIDUP BERSAMA-SAMA...Jadi sesiapa mencari lelaki idaman,tall,fair/dark,handsome,sila hantar resume ke warislinggi.blogspot.com
Sunday, July 26, 2009
Adik-adikku
Alahai, teringatlah pulak bebudak-budak ni masa kekecik dulu kemain lagi rajinnya. Memang diaorang ni semasa kecil,pantang disuruh dan diajak cepat j emenurut perintah dengan terujanya menolong di dapur.Pada masa itu,minda pun menyangka bahawa jika hendak melentur buluh biarlah dari rebungnya. Namun siap sangka rebung itu lambat menjadi laun akan menjadi buluh juga. Maknanya,asal nama lelaki,jika kerja menolong di dapur itu akhirnya akan dihindari juga oleh mereka.ah Bukan apa, tak kesian kah mereka kepada ibu dan kakak yang dah tua berada di dapur sepanjang hari? I
Sunday, March 22, 2009
Waktu untuk Perubahan
Pernah tak anda merasa bahawa perkara yang anda lakukan sehari-hari kini mendatangkan kebosanan dalam diri?
Pernah tak anda merasakan bahawa makanan yang anda makan hari-hari tidak lagi mendatangkan kekenyangan dan keenakan?
Pernah tak anda memikirkan bahawa rutin yang anda jalani setiap hari mula mengundang rasa jemu dalam diri?
Pernah tak anda berasa bahawa orang yang anda temui hari-hari kini tidak lagi memberikan kegembiraan dan keseronokan seperti sebelum ini?
Pernah tak anda terfikir betapa seronoknya sekiranya anda memiliki almari ajaib yang mempunyai pintu di belakangnya dan dunia lain di sebalik pintu itu?
Jika begitulah pemikiran anda,maka sudah tiba masanya untuk kita BERUBAH!!!!!!Kita jalani hidup baru yang berbeza dan menyeronokkan tetapi masih tidak melanggar perintah Allah!!!
Pernah tak anda merasakan bahawa makanan yang anda makan hari-hari tidak lagi mendatangkan kekenyangan dan keenakan?
Pernah tak anda memikirkan bahawa rutin yang anda jalani setiap hari mula mengundang rasa jemu dalam diri?
Pernah tak anda berasa bahawa orang yang anda temui hari-hari kini tidak lagi memberikan kegembiraan dan keseronokan seperti sebelum ini?
Pernah tak anda terfikir betapa seronoknya sekiranya anda memiliki almari ajaib yang mempunyai pintu di belakangnya dan dunia lain di sebalik pintu itu?
Jika begitulah pemikiran anda,maka sudah tiba masanya untuk kita BERUBAH!!!!!!Kita jalani hidup baru yang berbeza dan menyeronokkan tetapi masih tidak melanggar perintah Allah!!!
Wednesday, March 4, 2009
Elaboration Likehood Model
Sebenarnya tajuk di atas memperkatakan perkara berkenaan dengan 'Decision Making'
Terdapat 2 cara kita membuat keputusan atau dipengaruhi membuat keputusan
1. Apabila kita termotivasi dan mampu menumpukan perhatian,kita akan berfikir secara waras dan rasional.Dan inilah yang merupakan langkah terpenting dalam membuat keputusan Semua ini akan membawa kepada perubahan tetap dalam tingkah laku kita apabila kita mempertimbangkan hujah-hujah penghujah.
2. Manakala cara kedua ialah cara lebih ringkas,iaitu kita tidak menumpukan sebarang perhatian kepada hujah-hujah retorik pemujukan tetapi dipengarahi melalui perkara lain di sebalik perwatakan luaran si penghujah.Dalam kes ini walaupun kita terpengaruh dan berubah namun perubahan itu bersifat sementara kerana akan wujud keadaan kita akan mudah dipengaruhi oleh perubahan seterusnya.
Salah satu cara terbaik untuk memotivasi manusia untuk memilih langkah terpenting dalam membuat keputusan ialah menjadikan mesej itu disampaikan secara peribadi kepada mereka.Ketakutan juga sebenarnya efektif untuk menjadikan mereka menumpukan perhatian tetapi hanya apabila dalam keadaan sederhana dan ada penyelesaian.Ketakutan yang berlebihan akan membawa kepada pergaduhan atau pergerakan keluar.
Langkah utama untuk membuat keputusan ini akan membawa pertimbangan dalam pemikiran apabila berlaku pertengkaran dan keputusan pasti akan dibuat dengan berhati-hati.
Manusia akan termotivasi untuk membuat langkah utama ini apabila terdapat isu yang relevan secara peribadi kepada mereka. Sesetengah orang mempunyai keperluan yang tinggi untuk meneroka ilmu secara berfikir,mereka ini suka meneroka,membuat kajian berbanding dengan mereka yang mempunyai keperluan yang rendah.Jadi mereka yang berkeperluan tinggi ini pastinya akan memilih langkah yang utama dalam membuat keputusan.
Terdapat 2 cara kita membuat keputusan atau dipengaruhi membuat keputusan
1. Apabila kita termotivasi dan mampu menumpukan perhatian,kita akan berfikir secara waras dan rasional.Dan inilah yang merupakan langkah terpenting dalam membuat keputusan Semua ini akan membawa kepada perubahan tetap dalam tingkah laku kita apabila kita mempertimbangkan hujah-hujah penghujah.
2. Manakala cara kedua ialah cara lebih ringkas,iaitu kita tidak menumpukan sebarang perhatian kepada hujah-hujah retorik pemujukan tetapi dipengarahi melalui perkara lain di sebalik perwatakan luaran si penghujah.Dalam kes ini walaupun kita terpengaruh dan berubah namun perubahan itu bersifat sementara kerana akan wujud keadaan kita akan mudah dipengaruhi oleh perubahan seterusnya.
Salah satu cara terbaik untuk memotivasi manusia untuk memilih langkah terpenting dalam membuat keputusan ialah menjadikan mesej itu disampaikan secara peribadi kepada mereka.Ketakutan juga sebenarnya efektif untuk menjadikan mereka menumpukan perhatian tetapi hanya apabila dalam keadaan sederhana dan ada penyelesaian.Ketakutan yang berlebihan akan membawa kepada pergaduhan atau pergerakan keluar.
Langkah utama untuk membuat keputusan ini akan membawa pertimbangan dalam pemikiran apabila berlaku pertengkaran dan keputusan pasti akan dibuat dengan berhati-hati.
Manusia akan termotivasi untuk membuat langkah utama ini apabila terdapat isu yang relevan secara peribadi kepada mereka. Sesetengah orang mempunyai keperluan yang tinggi untuk meneroka ilmu secara berfikir,mereka ini suka meneroka,membuat kajian berbanding dengan mereka yang mempunyai keperluan yang rendah.Jadi mereka yang berkeperluan tinggi ini pastinya akan memilih langkah yang utama dalam membuat keputusan.
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