While cat videos, memes and the various other clips and images shared via the Internet provide endless hours of viewing pleasure, they are creating a stress on conventional wireless networks. They produce a huge demand for ...
Telecom
Nov 3, 2015
1
32
Terahertz radiation, the no-man's land of the electromagnetic spectrum, has long stymied researchers. Optical technologies can finagle light in the shorter-wavelength visible and infrared range, while electromagnetic techniques ...
General Physics
Aug 4, 2015
3
127
NASA's recent discovery of 12 more exoplanets, including the most Earth-like yet, brings the number of exoplanets – those outside our solar system – discovered to nearly 2,000. It's now thought that almost every star ...
Astronomy
Jul 27, 2015
1
38
When you look up on a clear night and see stars, what are you really looking at? A twinkling pinprick of light with a hint of colour?
Astronomy
Jul 17, 2015
0
33
A new type of sensor, that is much faster than competing technologies used to detect and identify hidden objects, has been developed by scientists at the University of Warwick.
Optics & Photonics
Jul 6, 2015
1
37
Nanfang Yu, assistant professor of applied physics at Columbia Engineering, and colleagues from the University of Zürich and the University of Washington, have discovered two key strategies that enable Saharan silver ants ...
Plants & Animals
Jun 18, 2015
15
10601
It can be difficult in our everyday lives to appreciate the extraordinary range of wavelengths in the electromagnetic spectrum. Electromagnetic radiation—from radio waves to visible light to x-rays—travels through space ...
General Physics
May 5, 2015
2
39
Light can come in many frequencies, only a small fraction of which can be seen by humans. Between the invisible low-frequency radio waves used by cell phones and the high frequencies associated with infrared light lies a ...
General Physics
Apr 22, 2015
0
46
A frequency comb source is a light source with a spectrum containing thousands of laser lines. The development of these sources has been revolutionary for fundamental science. It has allowed the construction of a link between ...
Optics & Photonics
Mar 10, 2015
0
18
Everything we do that requires a wireless connection uses the radio spectrum. We're able to harness radio waves to listen to music in the car or stream Netflix from the 4G network on our smartphones. Each application is assigned ...
Telecom
Jan 27, 2015
0
36
