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Iwoolf's Clips
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Clips
Aug 13, 2008
: For those who read my recent article: "The future of mankind: predictions of a new world" this is very much in line with several of my predictions.
However, it's going to be quite some time before this area of science produces something useful — neurology is a notoriously fickle discipline...
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Submitted by Iwoolf:
Do you care about the future? If yes, then on August 17 come to Newtown Square (corner of King St and Enmore Rd opposite Newtown Station) THIS IS A FREE EVENT!Join us at Live Futures. Explore the future with others online and in the real world. Part of National Science Week, and supported by the Futures Foundation, Live Fut (Read More)
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Submitted by Iwoolf:
PricewaterhouseCoopers (PwC) has donated more than $4 million to the Office of the United Nations High Commissioner for Refugees (UNHCR) to be used to build and operate schools for refugee children who have fled the conflict in Darfur. It is the largest single donation ever made by a business organization to the UNHCR. PwC (Read More)
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Truly Unusual
Forum: Truly Unusual News
Posted By: Weird Bob
Post Time: 08-11-2008 at 08:17 PM. (Read More)
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Science Fiction Fantasy Chronicles: forums
HelloI have spent a lot of time searching for examples of sci-fi and fantasy fiction in which the protagonists displays the characteristics usually seen in antagonists. I do not mean the "anti-hero" who still ends up fighting for "good." I mean someone with a decidedly evil persuasion. Picture the classic dark sorcerer, ma (Read More)
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Gadgets Reviews
This new gadget has just came out of science laboratory and it appears to be very interesting for all the science communities and gadget enthusiasts. The device looking like an electric bulb from the first glance, as a matter of fact is a Crookes. (Read More)
Jul 28, 2008
: William Crookes invented his radiometer over 100 years ago, its not new. I've had one of these toys for 20 years from the novelty section of a magic shop. There's a good page on wikipedia explaining how it works and the history: http://en.wikipedia.org/wiki/Crookes_radiometer
Even Albert Einstein had a go at explaining the radiometer. His explanation was that gas molecules hitting the warmer black side pick up heat and speed away, giving the vanes a push. However that doesn't explain the speed with which you can see the vanes move. Osborne Reynolds suggested thermal transpiration where gas molecules move from the cold side of a metal plate to the warm side, creating thrust. Wiki says thatits now believed that both forces move the vanes, but its unknown which is stronger.
Jul 28, 2008
: William Crookes invented his radiometer over 100 years ago, its not new. I've had one of these toys for 20 years from the novelty section of a magic shop. There's a good page on wikipedia explaining how it works and the history: http://en.wikipedia.org/wiki/Crookes_radiometer
Even Albert Einstein had a go at explaining the radiometer. His explanation was that gas molecules hitting the warmer black side pick up heat and speed away, giving the vanes a push. However that doesn't explain the speed with which you can see the vanes move. Osborne Reynolds suggested thermal transpiration where gas molecules move from the cold side of a metal plate to the warm side, creating thrust. Wiki says thatits now believed that both forces move the vanes, but its unknown which is stronger.
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