Researchers from Italy, Chile and Galicia have studied and compared the light pollution levels at major astronomical observatories across the world. The study shows that light is polluting the sky above most observatories ...
Astronomy
Dec 20, 2022
0
158
3D holograms, previously seen only in science fiction movies, may soon make their way to consumer technology. Until now, 3D holograms based on phase shifting holography method could be captured using a large, specialized ...
Nanophysics
Jan 5, 2022
0
216
Cell phones, cars and many other devices have separate cameras and sensors for day and night vision, but that need could go away thanks to University of Dayton researchers who developed a single device that can switch between ...
Optics & Photonics
Nov 16, 2021
0
77
Most animals sync their body clocks to the daily rhythm of the sun, but what happens during the polar winter when the sun never rises above the horizon? According to a study by Jonathan Cohen at the University of Delaware ...
Plants & Animals
Oct 19, 2021
0
120
A string of lights that lobbed across the night sky in parts of the U.S. on Wednesday, Thursday and Friday had some people wondering if a fleet of UFOs was coming, but it had others— mostly amateur stargazers and professional ...
Space Exploration
May 9, 2021
12
1298
Modern communications technology, regardless of use, relies on a similar formula: devices send signals and information through data centers, towers and satellites en route to their final destination. The effectiveness of ...
Optics & Photonics
Nov 12, 2020
1
72
Though we may not always realize it, photodetectors contribute greatly to the convenience of modern life. Also known as photosensors, photodetectors convert light energy into electrical signals to complete tasks such as opening ...
Nanomaterials
Nov 2, 2020
0
30
One of the most remarkable characteristics of the vertebrate eye is its retina. Surprisingly, the sensitive portions of the photoreceptor cells are found on the hind side of the retina, meaning that light needs to travel ...
Biotechnology
Feb 25, 2020
0
117
Movies featuring heroes with superpowers, such as flight, X-ray vision or extraordinary strength, are all the rage. But while these popular characters are mere flights of fancy, scientists have used nanoparticles to confer ...
Nanomaterials
Aug 27, 2019
3
460
Thin ribbons of purple and white light that sometimes appear in the night sky were dubbed a new type of aurora when brought to scientists' attention in 2016. But new research suggests these mysterious streams of light are ...
Earth Sciences
Aug 20, 2018
9
1223
