Engineering
Scientists at the University of Illinois Urbana-Champaign have developed a portable, self-powered ultraviolet-C device called the Tribo-sanitizer that can inactivate two of the bacteria responsible for many foodborne illnesses ...
Dec 5, 2023
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Security
Artificial intelligence tools hold promise for applications ranging from autonomous vehicles to the interpretation of medical images. However, a new study finds these AI tools are more vulnerable than previously thought to ...
Dec 4, 2023
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48
Energy & Green Tech
If we are to save the planet, we are going to have to use energy far more efficiently.
Dec 1, 2023
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1
Electronics & Semiconductors
Conventional silicon architecture has taken computer vision a long way, but Purdue University researchers are developing an alternative path—taking a cue from nature—that they say is the foundation of an artificial retina. ...
Nov 29, 2023
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Electronics & Semiconductors
A University of Alberta engineering researcher has developed a wireless light switch that could reduce the cost of wiring a house by as much as 50%.
Nov 28, 2023
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Security
Forensic experts in the U.K. are taking new steps to identify criminals caught on CCTV using the shoes they are wearing.
Nov 27, 2023
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Engineering
Converting office space to housing units sounds like a win–win in the post-pandemic world of remote work and scarce housing.
Nov 22, 2023
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Energy & Green Tech
In a world first, collaborative research has shown that a material that could be added to advanced fuel accumulates in certain regions, giving it desirable properties. Using the incredibly powerful microscopes at The UK's ...
Nov 21, 2023
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24
Internet
From Wi-Fi-connected home security systems to smart toilets, the so-called Internet of Things brings personalization and convenience to devices that help run homes. But with that comes tangled electrical cords or batteries ...
Nov 9, 2023
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44
Electronics & Semiconductors
The molecular structure of organic semiconductors is key to the outdoor stability of organic solar cells. Molecular-level insight into one family of organic solar cell materials, known as Y-series nonfullerene acceptors (Y-NFAs), ...
Nov 6, 2023
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4
Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.
Three primary properties of light are:
Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.
This text uses material from Wikipedia, licensed under CC BY-SA
