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The Grandfather Paradox proves...

 that time travel entails the possibility of causality violations3 votes
10.71%
 that a time traveller's actions are restricted, in a particularly unusual way2 votes
7.14%
 that there must be some sort of 'Chronology Protection Agency' that prevents time travellers from creating a causal contradiction0 votes
0.00%
 that time travel is logically, and therefore physically, impossible1 votes
3.57%
 that if we did time travel and kill our grandfather, a new universe would be created with a different history7 votes
25.00%
 that time travel is weird... but not much else0 votes
0.00%
 nothing interesting at all... the so-called 'paradox' only proves that we can't do something that we can't do, which is obvious7 votes
25.00%
 none of the above, and I will comment to explain myself!8 votes
28.57%
total votes: 28
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Caught in the Act? Images may reveal planetary birth
@ Space     Apr 07 2008, 12:07 (UTC+0)

hitech writes: They might be planets.

Peering into disks of gas and dust that surround young stars, two teams of astronomers have for the first time imaged dusty clumps that could be planets in the making.
Material within the disks, ubiquitous around newborn stars, can coalesce into planets. It's uncertain whether the faint clumps seen in the new images are planets, heavier objects known as brown dwarfs, or just background objects that happen to lie in the same patch of sky.

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continued...

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SECRET SUN TO PLANETSquq507.Sep:08:34

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Earth leaving its orbit
@ Space     Apr 01 2008, 12:10 (UTC+0)
rhevin writes: Report has recently come in from observatories around the world that the Earth has left its normal orbit around the sun. This is thought to be the cause of large gravity waves, emitted from recently abnormal solar storms.

"We don't know much yet, but I would lie if I said I wasn't worried" says one of the leading astronomers in China, who was among the first to discover this disturbing news. More about this can be found at Science Cube

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left its normal orbitquq507.Sep:08:24
in factPras02.Apr:20:52
LinkPras02.Apr:20:46

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Chimps' Memories Superior to Those of Humans
@ Biology     Dec 04 2007, 19:48 (UTC+0)

Pau1 writes: Chimpanzees have an extraordinary photographic memory that is far superior to ours, research suggests.

Young chimps outperformed university students in memory tests devised by Japanese scientists. The tasks involved remembering the location of numbers on a screen, and correctly recalling the sequence.

"There are still many people, including many biologists, who believe that humans are superior to chimpanzees in all cognitive functions," said lead researcher Tetsuro Matsuzawa of Kyoto University.

"Here we show for the first time that young chimpanzees have an extraordinary working memory capability for numerical recollection - better than that of human adults tested in the same apparatus, following the same procedure."

Read more from the BBC.

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PWRquq507.Sep:08:46
FlawZephyrx28.May:01:17
Amazing!Pau105.Dec:11:15

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Paralysed man's mind is 'read'
@ Biotechnology     Nov 17 2007, 09:10 (UTC+0)

Electrodes were planted in the part of the brain which controls speech

Romen writes: Scientists say they may be on the brink of translating into words the thoughts of a man who can no longer speak, after a pioneering experiment.

Electrodes have been implanted in the brain of Eric Ramsay, who has been "locked in" - conscious but paralysed - since a car crash eight years ago.

These have been recording pulses in areas of the brain involved in speech.

Now, New Scientist magazine reports, they are to use the signals he generates to drive speech software.

Continued @ bbc.co.uk...

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BRAIN SOFTWAREquq507.Sep:08:49

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@ Other     Nov 12 2007, 19:21 (UTC+0)

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Energetic Cosmic Rays May Start From Black Holes
@ Space     Nov 11 2007, 15:25 (UTC+0)
dera writes: They are the zestiest bits of matter in the universe. They can zing through space for millions of years at essentially the speed of light and with 100 million times the energy produced by the biggest particle accelerators on the earth, before crashing occasionally into Earth’s atmosphere and dying in a spray of microscopic fluff. continued...

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Half a glass of red wine 'protects from cancer'
@ Medicine & Health
Nov 18 2007 - 19:22 GMT
From: dera :
   Half a glass of red wine a day could protect you from colon cancer, scientists have discovered. The study found that a diet rich in grapes can help prevent the third most common form of cancer, one that kills more than half a million people worldwide and over 16,000 in Britain every year. Continued...

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Earth Rise Captured in HD
@ Space
Nov 15 2007 - 15:39 GMT
From: mad_scientist :
   The Japan Aerospace Exploration Agency (JAXA) and NHK (Japan Broadcasting Corporation) have successfully performed the world's first high-definition image taking of an Earth-rise by the lunar explorer "KAGUYA" (SELENE).

The Apollo project was the first mission to take images of Earth rising over the Moon.

Read More

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Heavy metal 'a comfort for the bright child'
@ Lifestyle
May 28 2007 - 11:41 GMT
From: cybersky :
   Intelligent teenagers often listen to heavy metal music to cope with the pressures associated with being talented, according to research. The results of a study of more than 1,000 of the brightest five per cent of young people will come as relief to parents whose offspring, usually long-haired, are devotees of Iron Maiden, AC/DC and their musical descendants. Researchers found that, far from being a sign of delinquency and poor academic ability, many adolescent "metalheads" are extremely bright and often use the music to help them deal with the stresses and strains of being gifted social outsiders. Continued

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From aardvark to zinnia, all of Earth's known species to be cataloged on Web site
@ Computers & IT
May 09 2007 - 23:34 GMT
From: cybersky :
   In a whale-sized project, the world's scientists plan to compile everything they know about all of Earth's 1.8 million known species and put it all on one Web site, open to everyone. The effort, called the Encyclopedia of Life, will include species descriptions, pictures, maps, videos, sound, sightings by amateurs, and links to entire genomes and scientific journal papers. Its first pages of information will be shown Wednesday in Washington where the massive effort is being announced by some of the world's leading institutions. The project will take about 10 years to finish. Continued

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Gene mutation linked to cognition is found only in humans
@ Biology
May 09 2007 - 23:29 GMT
From: cybersky :
   The human and chimpanzee genomes vary by just 1.2 percent, yet there is a considerable difference in the mental and linguistic capabilities between the two species. A new study showed that a certain form of neuropsin, a protein that plays a role in learning and memory, is expressed only in the central nervous systems of humans and that it originated less than 5 million years ago. The study, which also demonstrated the molecular mechanism that creates this novel protein, will be published online in Human Mutation, the official journal of the Human Genome Variation Society. continued...

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Mathematician shows possibility of invisibility
@ Physics
May 04 2007 - 22:41 GMT
From: cybersky :
   A computer model designed by a mathematician at the University of Liverpool has shown that it is possible to make objects, such as aeroplanes and submarines, appear invisible at close range.continued...

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