See this at: cs.cmu.edu| Added on 09/14/06

A simple spectrometer can be built from a CD and a box. Cut a slit on one side of the box. Place the CD on the other side with about 60 degree angle. Look down into the openning on the box. The slit should not be too wide, otherwise the spectrum... See more

A simple spectrometer can be built from a CD and a box. Cut a slit on one side of the box. Place the CD on the other side with about 60 degree angle. Look down into the openning on the box. The slit should not be too wide, otherwise the spectrum lines will be blurred. It should not be too narrow either, otherwise the spectrum is too dim. I use a 0.2mm wide slit. See less

Highlights: Cool project!

See this at: abc.net.au| Added on 12/11/06

(OR WERE TOO TIRED TO THINK ABOUT) -The record for the longest period without sleep is 18 days, 21 hours, 40 minutes during a rocking chair marathon. The record holder reported hallucinations, paranoia, blurred vision, slurred speech and memory and... See more

(OR WERE TOO TIRED TO THINK ABOUT) -The record for the longest period without sleep is 18 days, 21 hours, 40 minutes during a rocking chair marathon. The record holder reported hallucinations, paranoia, blurred vision, slurred speech and memory and concentration lapses. - It's impossible to tell if someone is really awake without close medical supervision. People can take cat naps with their eyes open without even being aware of it. - Anything less than five minutes to fall asleep at night means you're sleep deprived. The ideal is between 10 and 15 minutes, meaning you're still tired enough to sleep deeply, but not so exhausted you feel sleepy by day. - A new baby typically results in 400-750 hours lost sleep for parents in the first year - One of the best predictors of insomnia later in life is the development of bad habits from having sleep disturbed by young children. - The continuous brain recordings that led to the discovery of REM (rapid eye-movement) sleep were not done until... See less

See this at: earthobservatory.nas...| Added on 08/05/06

The icons on the above map show the locations of natural hazards observed by NASA satellites. Choose one to see the latest image associated with that natural hazard event, or select one of the sections from our topic list to learn more about these... See more

The icons on the above map show the locations of natural hazards observed by NASA satellites. Choose one to see the latest image associated with that natural hazard event, or select one of the sections from our topic list to learn more about these extreme events. See less

See this at: guardian.co.uk| Added on 08/05/06

A few years ago I was researching a book about Einstein when I stumbled on a footnote about an obscure Frenchwoman of the early 18th century. Her name was Emilie du Châtelet; according to the note, she had played a role in developing the modern... See more

A few years ago I was researching a book about Einstein when I stumbled on a footnote about an obscure Frenchwoman of the early 18th century. Her name was Emilie du Châtelet; according to the note, she had played a role in developing the modern concept of energy, and had acquired a certain notoriety in her day. It left me intrigued. And what I discovered, as I tracked down her letters and books over the next few months, astounded me. That footnote had understated her significance entirely. Emilie du Châtelet had played a crucial role in the development of science. What's more, she had had a wild life. She had been raised in Paris in the 1710s, growing up in a townhouse of more than 30 rooms overlooking the Tuileries gardens. Her mother had been appalled at having a child who refused to stay politely at children's parties, or to gossip about clothes, but who instead loved listening in when educated guests - especially astronomers - came to visit. Du Châtelet's father, luckily, doted on... See less

Highlights: I thought this rather interesting. Good item for the budding female scientists in the family.

See this at: law.umkc.edu| Added on 08/12/06

The Web's largest and most visited collection of materials relating to famous trials, from Socrates to Clinton. The site includes original essays, images, primary documents, maps, transcript excerpts, chronologies, video clips, court decisions, and... See more

The Web's largest and most visited collection of materials relating to famous trials, from Socrates to Clinton. The site includes original essays, images, primary documents, maps, transcript excerpts, chronologies, video clips, court decisions, and other materials to aid readers in understanding the significance of historic trials. See less

See this at: york.ac.uk| Added on 08/16/06

Really Beautiful China

Really Beautiful China See less

Highlights: Really Amazing Photographs of Beautiful China

See this at: goldennumber.net| Added on 08/31/06

The "phinest" information on the Golden Section, Divine Proportion, Fibonacci series and phi. Explore its application to art, design, life, beauty, mathematics, geometry, stock markets, theology, cosmology and more.

The "phinest" information on the Golden Section, Divine Proportion, Fibonacci series and phi. Explore its application to art, design, life, beauty, mathematics, geometry, stock markets, theology, cosmology and more. See less

See this at: technovelgy.com| Added on 03/12/06

Explore the wide variety of inventions and ideas of science fiction writers - over 975 are available on Technovelgy (that's tek-novel-gee!). Use the Timeline of Science Fiction Invention or the alphabetic Glossary of Science Fiction Technology to see... See more

Explore the wide variety of inventions and ideas of science fiction writers - over 975 are available on Technovelgy (that's tek-novel-gee!). Use the Timeline of Science Fiction Invention or the alphabetic Glossary of Science Fiction Technology to see them all, look for the category that interests you, browse by favorite author / book or check Science Fiction in the News and watch sf come to life. See less

See this at: canadianmysteries.ca| Added on 07/02/06

Great Unsolved Mysteries in Canadian History || Les grands mystères de l'histoire canadienne

Great Unsolved Mysteries in Canadian History || Les grands mystères de l'histoire canadienne See less

See this at: antiquespectacles.co...| Added on 07/15/06

Starting with the Introduction and Goals, wander through this non-commercial, not for profit, website. You may find it enlightening and informative to learn about these wonderful items many of us use daily. Look at the Table of Contents. This website... See more

Starting with the Introduction and Goals, wander through this non-commercial, not for profit, website. You may find it enlightening and informative to learn about these wonderful items many of us use daily. Look at the Table of Contents. This website is the result of the collaboration of International educators and is for everyone’s interest and enjoyment. It is the place where we celebrate vision aids, especially spectacles. The Real Numbers of this website keep growing because Interesting Topics and Slideshows are added regularly. All this would not have been possible without the wonderful support of many noteworthy Contributing Individuals and Participating Institutions. To improve your navigation of the website, we have added Quick Links. See less

See this at: wellcome.ac.uk| Added on 07/15/06

Selected by a team of expert judges from recent acquisitions by the Medical Photographic Library of the Wellcome Library, the winning images show a wide variety of subjects, most invisible to the naked eye, revealing new layers of complexity. View... See more

Selected by a team of expert judges from recent acquisitions by the Medical Photographic Library of the Wellcome Library, the winning images show a wide variety of subjects, most invisible to the naked eye, revealing new layers of complexity. View the Award-winning images in the online gallery or in person, listen to interviews with their creators and find out how they were made. You may also like to vote online for your favourite image, or submit your images for a chance to win at next year's awards. The winners of the Awards challenge the public perspective that scientists don't have an artistic side. Working every day with microscopes and imaging technology, these biologists have been able to capture stunning images through a blend of original and innovative techniques. Despite the obvious visual appeal of the pictures, their primary purpose is investigation. The images are from research projects with the ultimate goal of helping to improve healthcare through new forms of... See less

Highlights: Some absolutely amazing photographs. Hard to believe some of these pictures are not fabricated images.

See this at: orange-papers.org| Added on 07/20/06

* The A.A. failure rate ranges from 95% to 100%. Sometimes, the A.A. success rate is actually less than zero, which means that A.A. indoctrination is positively harmful to people, and prevents recovery. Some tests have shown that even receiving no... See more

* The A.A. failure rate ranges from 95% to 100%. Sometimes, the A.A. success rate is actually less than zero, which means that A.A. indoctrination is positively harmful to people, and prevents recovery. Some tests have shown that even receiving no treatment at all for alcoholism is much better than receiving A.A. treatment: * One of the most enthusiastic boosters of Alcoholics Anonymous, Professor George Vaillant of Harvard University, who is also a member of the Board of Trustees of Alcoholics Anonymous World Services, Inc. (AAWS), showed by his own 8 years of testing of A.A. that A.A. was worse than useless -- that it didn't help the alcoholics any more than no treatment at all, and it had the highest death rate of any treatment program tested -- a death rate that Professor Vaillant himself described as "appalling". While trying to prove that A.A. treatment works, Professor Vaillant actually proved that A.A. kills. After 8 years of A.A. treatment, the score with Dr. Vaillant's first... See less

See this at: abc.net.au| Added on 12/19/06

(OR WERE TOO TIRED TO THINK ABOUT) -The record for the longest period without sleep is 18 days, 21 hours, 40 minutes during a rocking chair marathon. The record holder reported hallucinations, paranoia, blurred vision, slurred speech and memory and... See more

(OR WERE TOO TIRED TO THINK ABOUT) -The record for the longest period without sleep is 18 days, 21 hours, 40 minutes during a rocking chair marathon. The record holder reported hallucinations, paranoia, blurred vision, slurred speech and memory and concentration lapses. - It's impossible to tell if someone is really awake without close medical supervision. People can take cat naps with their eyes open without even being aware of it. - Anything less than five minutes to fall asleep at night means you're sleep deprived. The ideal is between 10 and 15 minutes, meaning you're still tired enough to sleep deeply, but not so exhausted you feel sleepy by day. - A new baby typically results in 400-750 hours lost sleep for parents in the first year - One of the best predictors of insomnia later in life is the development of bad habits from having sleep disturbed by young children. - The continuous brain recordings that led to the discovery of REM (rapid eye-movement) sleep were not done until... See less

See this at: micro.magnet.fsu.edu| Added on 06/27/06

View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in... See more

View the Milky Way at 10 million light years from the Earth. Then move through space towards the Earth in successive orders of magnitude until you reach a tall oak tree just outside the buildings of the National High Magnetic Field Laboratory in Tallahassee, Florida. After that, begin to move from the actual size of a leaf into a microscopic world that reveals leaf cell walls, the cell nucleus, chromatin, DNA and finally, into the subatomic universe of electrons and protons. See less

Highlights: Lots here but in particular checkout the interactive "Tutorials."

See this at: phrenopolis.com| Added on 06/26/06

And you thought there was a lot of empty space in the solar system. Well, there's even more nothing inside an atom. A hydrogen atom is only about a ten millionth of a millimeter in diameter, but the proton in the middle is a hundred thousand times... See more

And you thought there was a lot of empty space in the solar system. Well, there's even more nothing inside an atom. A hydrogen atom is only about a ten millionth of a millimeter in diameter, but the proton in the middle is a hundred thousand times smaller, and the electron whizzing around the outside is a thousand times smaller than THAT. The rest of the atom is empty. I tried to picture it, and I couldn't. So I put together this page - and I still can't picture it. The page is scaled so that the smallest thing on it, the electron, is one pixel. That makes the proton, this big ball right next to us, a thousand pixels across, and the distance between them is... yep, fifty million pixels (not a hundred million, because we're only showing the radius of the atom. ie: from the middle to the edge). If your monitor displays 72 pixels to the inch, then that works out to eleven miles - making this possibly the biggest page you've ever seen. I recommend trying to scroll from here to the right a... See less

See this at: deepskyfrontier.com| Added on 06/26/06

This page is 9 quadrillion pixels wide by 9 quadrillion pixels tall. Thus it contains a large number of pixels:

This page is 9 quadrillion pixels wide by 9 quadrillion pixels tall. Thus it contains a large number of pixels: See less

Highlights: Note: While this page is very, very large when viewed using Internet Explorer and others, you need Mozilla Firefox to view it properly. Firefox is the open-source phoenix of once-defeated Netscape. It offers improved speed, security, and simplicity. It's tabs feature alone makes it worth...

See this at: newscientistspace.co...| Added on 06/26/06

DON'T try this at home. Several times a day, for several days, you induce pain in someone. You control the pain with morphine until the final day of the experiment, when you replace the morphine with saline solution. Guess what? The saline takes the... See more

DON'T try this at home. Several times a day, for several days, you induce pain in someone. You control the pain with morphine until the final day of the experiment, when you replace the morphine with saline solution. Guess what? The saline takes the pain away. This is the placebo effect: somehow, sometimes, a whole lot of nothing can be very powerful. Except it's not quite nothing. When Fabrizio Benedetti of the University of Turin in Italy carried out the above experiment, he added a final twist by adding naloxone, a drug that blocks the effects of morphine, to the saline. The shocking result? The pain-relieving power of saline solution disappeared. So what is going on? Doctors have known about the placebo effect for decades, and the naloxone result seems to show that the placebo effect is somehow biochemical. But apart from that, we simply don't know. Benedetti has since shown that a saline placebo can also reduce tremors and muscle stiffness in people with Parkinson's disease... See less

Highlights: Nice to know we don't know everything yet. There are still mysteries to ponder and wonder at.

See this at: drgrammar.org| Added on 06/25/06

A lot or Alot? A lot should be written as two words. Although a lot is used informally to mean "a large number" or "many," avoid using a lot in formal writing. Example: "The crook had many (not a lot of) chances to rob the stranger."

A lot or Alot? A lot should be written as two words. Although a lot is used informally to mean "a large number" or "many," avoid using a lot in formal writing. Example: "The crook had many (not a lot of) chances to rob the stranger." See less

Highlights: More than interesting it's actually useful.

See this at: stevequayle.com| Added on 06/25/06

Hugo, age 25 8' 2-1/2" Chang Woo Gow 8' 2" 1841-1893 William Olding, age 19 in 1942 Lutteur Ant, age 22 Eisenmann New York

Hugo, age 25 8' 2-1/2" Chang Woo Gow 8' 2" 1841-1893 William Olding, age 19 in 1942 Lutteur Ant, age 22 Eisenmann New York See less

See this at: limbsandthings.com| Added on 06/17/06

A realistic representation of the buttocks, anus and rectum allowing for the practice of diagnostic skills associated with rectal examination. This product replaces the Diagnostic Prostate Trainer. As well as improving the overall look and feel of... See more

A realistic representation of the buttocks, anus and rectum allowing for the practice of diagnostic skills associated with rectal examination. This product replaces the Diagnostic Prostate Trainer. As well as improving the overall look and feel of the model, an additional perineum has been included which contains 2 rectal pathologies. See less

See this at: americaninventorspot...| Added on 06/17/06

What is the weirdest thing you ever ate? I can eat almost everything as my big frame can attest, but there are limits to even my gluttony. I realize that foods that one eats and enjoys are culture based and the love of sushi, kimchi, and a rare steak... See more

What is the weirdest thing you ever ate? I can eat almost everything as my big frame can attest, but there are limits to even my gluttony. I realize that foods that one eats and enjoys are culture based and the love of sushi, kimchi, and a rare steak are cultivated based on where you were raised, but some things are just plain disgusting (at least to my plebian brain). Here are my choices for the 10 Weirdest Things That People Eat: See less

Highlights: Have you got the stomach for this?

See this at: tollesburysc.co.uk| Added on 06/09/06

This page is dedicated to the art of tying knots. Most of them are quite commonly used aboard or related to the sea - fishing and that sort of thing. All the knots are animated and hence move by themselves, showing you how they are constructed. If... See more

This page is dedicated to the art of tying knots. Most of them are quite commonly used aboard or related to the sea - fishing and that sort of thing. All the knots are animated and hence move by themselves, showing you how they are constructed. If more information is required on these knots, The Ashley Book of Knots by Clifford Ashley is a great source of information. See less

See this at: gynecomastia.org| Added on 06/09/06

Please be respectful of the men and their pictures posted here. It took a great deal of courage for them to take these pictures, let alone have them posted for the world to see. I am grateful to them and I believe that it is a gift to the thousands... See more

Please be respectful of the men and their pictures posted here. It took a great deal of courage for them to take these pictures, let alone have them posted for the world to see. I am grateful to them and I believe that it is a gift to the thousands of men that think they are the only one with this condition. Thank you. See less

See this at: nationalgeographic.c...| Added on 06/09/06

Is the Da Vinci Code fact or fiction? Explore related Da Vinci Code videos from National Geographic.

Is the Da Vinci Code fact or fiction? Explore related Da Vinci Code videos from National Geographic. See less

See this at: handcuffs.org| Added on 06/08/06

This is a gallery of vintage handcuffs. The date given is the date of the original patent of the hancuff shown or the approximate date of introduction. The country of origin is the place where the cuff is thought to have been manufactured. Some of... See more

This is a gallery of vintage handcuffs. The date given is the date of the original patent of the hancuff shown or the approximate date of introduction. The country of origin is the place where the cuff is thought to have been manufactured. Some of the data in this table is in doubt and there are almost certainly errors. Please send an email or leave a note in the guestbook if you can correct any errors or supply any additional information about the items pictured here. Vintage handcuffs are defined roughly as those made from the time of the American Civil war through the 1970s. Many more modern handcuffs exist, but they are intentionally not included with this gallery.Unless otherwise credited all text and pictures presented on these web pages are copyrighted © 2000 by Joseph W. Lauher. All rights are reserved. Text and pictures may not be copied without permission. See less

See this at: eyeofscience.com| Added on 06/04/06

Life in a microcosmic world

Life in a microcosmic world See less

Highlights: You have got to check out the Gallery of photographs here. Some amazing views of the world.

See this at: rubytooth.com| Added on 06/04/06

Look at the screen for 60 seconds, then take a look at your hand. This trippy effect brought to you by your tired rods and cones. By: Artext

Look at the screen for 60 seconds, then take a look at your hand. This trippy effect brought to you by your tired rods and cones. By: Artext See less