Researchers have incorporated ultra-thin optical devices known as metasurfaces into off-the-shelf contact lenses to correct deuteranomaly, a form of red-green color blindness. The new customizable contact lens could offer ...
Optics & Photonics
Mar 4, 2020
2
333
Metalenses—flat surfaces that use nanostructures to focus light—are poised to revolutionize everything from microscopy to cameras, sensors, and displays. But so far, most of the lenses have been about the size of a piece ...
Nanomaterials
Dec 3, 2019
0
1390
Some landslides on Mars seem to defy an important law of physics. "Long, runout landslides" are formed by huge volumes of rock and soil moving downslope, largely due to the force of gravity. But their power is hard to account ...
Space Exploration
Dec 3, 2019
1
126
Though it looks like it to us, Jupiter's clouds do no form a flat surface. Some of its clouds rise up above the surrounding cloud tops. The two bright spots in the right center of this image are much higher than the surrounding ...
Space Exploration
Oct 31, 2019
0
44
India's space agency says the landing module of the country's unmanned moon mission has separated from the orbiter ahead of its planned touchdown on the moon's south polar region this weekend.
Space Exploration
Sep 2, 2019
0
13
Imagine a better windshield that easily repels water and requires less wiping. Now imagine if that same technology could allow doctors to better detect disease or abnormalities in patients.
Materials Science
Aug 22, 2019
0
11
A team of researchers affiliated with several institutions in Spain and the U.S. has announced that they have discovered a new property of light—self-torque. In their paper published in the journal Science, the group describes ...
Nature, time, neglect and millions of footsteps have taken their toll on the Great Wall of China leaving much of it crumbling, but repairing it can be painstaking—and controversial—work.
Other
Jun 28, 2019
0
0
Modern applications use self-cleaning strategies and digital microfluids to control individual droplets of fluids on flat surfaces but existing techniques are limited by the side-effects of high electric fields and high temperatures. ...
Indian mountaineers on Monday began a dangerous trek toward an isolated Himalayan slope in a bid to find the bodies of eight climbers feared killed by an avalanche.
Environment
Jun 10, 2019
0
6
