- News Home
5 December 2013 11:26 am ,
Vol. 342 ,
An animal rights group known as the Nonhuman Rights Project filed lawsuits in three New York courts this week in an...
Researchers have been hot on the trail of the elusive Denisovans, a type of ancient human known only by their DNA and...
Thousands of scientists in the Russian Academy of Sciences (RAS) are about to lose their jobs as a result of the...
Dyslexia, a learning disability that hinders reading, hasn't been associated with deficits in vision, hearing, or...
Exotic, elusive, and dangerous, snakes have fascinated humankind for millennia. They can be hard to find, yet their...
Researchers have sequenced and analyzed the first two snake genomes, which represent two evolutionary extremes. The...
Snake venoms are remarkably complex mixtures that can stun or kill prey within minutes. But more and more researchers...
At age 30, Dutch biologist Freek Vonk has built up a respectable career as a snake scientist. But in his home country,...
- 5 December 2013 11:26 am , Vol. 342 , #6163
- About Us
Video: Steering With Light
5 December 2010 1:00 pm
Solar sails, like that unfurled by the IKAROS spacecraft this summer, catch photons from the sun the same way a boat sail catches the wind. But because these sails are large, rigid, metal structures, they are difficult to steer. Now physicists have found a way to better control them. The team shined a 130 milliwatt beam of light on a 10 micrometer-long, wing-shaped piece of glass floating in water. Because glass bends light, a property known as refraction, the wing moved perpendicular to the light rays at a rate of a few micrometers per second, as seen in this video. Adding wings made of glass or other refractive materials in flight would allow astronomers to better steer future space missions, the team reports online today in Nature Photonics. So a craft won't be stuck if it needs to make a U turn.
See more Videos.