'Brown dwarfs' cooler than human body discovered-AND ETC

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An artist's conception illustrates what brown dwarfs of different types might look like.
APAn artist's conception illustrates what brown dwarfs of different types might look like.

They are too puny to force atoms to fuse together and release nuclear energy, and so they have only the little heat they were born with. This heat fades over time until all the light they do emit is at infrared wavelengths. So far, WISE has detected 100 new brown dwarfs, LiveScience reported.


They found the coldest Y dwarf, known as WISE 1828+2650, was colder than 80 degrees Fahrenheit (25C), less than the temperature of a human body


“It’s thrilling to me to know we’ve got neighbours out there yet to be discovered. With WISE, we may even find a brown dwarf closer to us than our closest known star,” said Cushing, who led the study on the Y dwarfs 
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Need a lie detector? Just use a magnet
LONDON: Scientists have found that magnetic interference with the brain makes it impossible to lie, a discovery they say could be the most effective way to extract information from crime suspects unwilling to tell the truth.
Estonian researchers found that stimulating part of the front brain with magnets alters thesimplicity of lying.

The team found that when magnets were applied to either the right or left side of the dorsolateral prefrontal cortex, found directly behind the forehead, it makes a person to lie or tell the truth, depending on which side was stimulated. However, magnetic interference directed at another part of the brain, the parietal lobe, was found to have no impact on the people's decision-making , the researchers said.

"Spontaneous choice to lie more or less can be influenced by brain stimulation," study researchers Inga Karton and Talis Bachmann were quoted as saying by the Daily Mail. 
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Nasa craft discovers 'invisible' world

Astronomers believe that they have found an invisible world after detecting a planet, which revolves around its orbit in irregular intervals. Nasa’s Kepler spacecraft has spotted a planet that alternately runs late and early in its orbit because a second, “invisible” world is tugging on it.
This is the first definite detection of a previously unknown planet using this method. No other technique could have found the unseen companion.
“This invisible planet makes itself known by its influence on the planet we can see,” said astronomer Sarah Ballard of the Harvard-Smithsonian Centre for Astrophysics (CfA), who is the lead author on the study.
“It’s like having someone play a prank on you by ringing your doorbell and running away. You know someone was there, even if you don’t see anyone when you get outside,” she added.
Both the seen and unseen worlds orbit the Sun-like star Kepler-19, which is located 650 light-years from Earth in the constellation Lyra.
So far, astronomers don’t know anything about the invisible world Kepler-19c, other than that it exists.
--------------------------------------------------------------------------------------------------------------------------------------Yale researchers discover source of signals that trigger hair growth
In news that offers hope to millions of chrome-domes everywhere – yours truly included – Yale researchers have made a discovery that could lead to new treatments for baldness. While men with male pattern baldness still have stem cells in follicle roots, they need signals from within the skin to grow hair. Until now, the source of those signals that trigger hair growth has been unclear,
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Human-powered Gamera helicopter hovers its way into the record books

16:11 August 19, 2011
Hovering for 11.4 seconds has secured a place in the record books for the Gamera team, and...
Hovering for 11.4 seconds has secured a place in the record books for the Gamera team, and for its pilot Judy Wexler, who made the longest human-powered flight by a female U.S. pilot
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A biology student has just hovered her way into the record books in a four-rotor, human-powered helicopter named after a giant flying turtle from Japanese kaiju movies. Gamera was built to try and claim the American Helicopter Society's Sikorsky Prize, that was set up in 1980 and has yet to be claimed. The team's first flights in May resulted in a 4.2-second U.S. national record, and now the record page has had to be rewritten again after the young pilot's frantic combination of hand and foot pedaling action kept Gamera in the air for nearly three times longer, during the recent summer flight sessions.
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Spiraling maple tree seeds inspire world's smallest single-winged rotocraft

18:08 October 21, 2009
The smallest monocopter built by Ulrich to-date, with a maximum dimension of 95mm and a wi...
The smallest monocopter built by Ulrich to-date, with a maximum dimension of 95mm and a wing equal in size to a natural samara (Photo: Evan Ulrich/A. James Clark School of Engineering, U-Md.)
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Students at the University of Maryland’s Clark School of Engineering have turned to nature to create a flying device that can hover and perform surveillance duties, and that could lead to applications for military and emergency services. The enigmatic maple tree seeds (or samara fruit) - and the unique spiraling pattern with which they glide to the ground - have intrigued children and engineers for decades. Now aerospace engineering graduate students have applied the seeds’ design to airborne devices and created what they believe to be the world's smallest controllable single-winged rotocraft.
Researchers first tried to create an unmanned aerial vehicle that could mimic a maple seed's spiraling fall in the 1950s. Foiled attempts have followed regularly ever since as these tiny vehicles (less than 1m or 3ft) have been easily knocked off course by wind.
Unfazed by recent failings, an open challenge was issued to the engineering students in June this year to design a viable craft.
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