Engineering
Windows welcome light into interior spaces, but they also bring in unwanted heat. A new window coating blocks heat-generating ultraviolet and infrared light and lets through visible light, regardless of the sun's angle. The ...
Apr 2, 2024
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87
Energy & Green Tech
Discarded crisp bags, ketchup bottles and Tupperware containers speed along conveyer belts at a massive high-tech sorting plant dubbed "Site Zero", which Sweden hopes will revolutionize its plastic recycling.
Mar 27, 2024
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2
Energy & Green Tech
As traditional energy methods increase in cost and take their toll on the environment, Penn State researchers are turning to two underutilized renewable resources, the sun and outer space, for solutions to generate electricity ...
Mar 14, 2024
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55
Hardware
Cameras similar to those already on newer model cars, combined with facial recognition tools, could read the "tells" of impairment in the face and upper body of a driver, University of Michigan engineers have shown.
Mar 4, 2024
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2
Energy & Green Tech
Researchers are going beyond conventional solar panels in a bid to generate heat and electricity from the other external surfaces of buildings.
Jan 29, 2024
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5
Consumer & Gadgets
Salon-worthy manicures at home and expert skin care advice from artificial intelligence: the beauty industry is counting on tech to get consumers pampered like the rich and famous.
Jan 9, 2024
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1
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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1
Engineering
NASA's first two-way laser relay system completed its first year of experiments on June 28—a milestone for a game-changing technology that could be the future for sending and receiving data from space.
Jun 29, 2023
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1
Engineering
A new material, created at the little-explored intersection of organic and inorganic chemistry, could not only enable more powerful solar panels, but it could also usher in the next generation of cancer treatments.
Jun 12, 2023
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10
Engineering
Like something out of a spy movie, thermal cameras make it possible to "see" heat by converting infrared radiation into an image. They can detect infrared light given off by animals, vehicles, electrical equipment and even ...
Jun 8, 2023
1
1574
Infrared (IR) radiation is electromagnetic radiation whose wavelength is longer than that of visible light (400-700 nm), but shorter than that of terahertz radiation (100 µm - 1 mm) and microwaves (~30,000 µm). Infrared radiation spans roughly three orders of magnitude (750 nm and 100 µm).
Direct sunlight has a luminous efficacy of about 93 lumens per watt of radiant flux, which includes infrared (47% share of the spectrum), visible (46%), and ultra-violet (only 6%) light. Bright sunlight provides luminance of approximately 100,000 candela per square meter at the Earth's surface.
This text uses material from Wikipedia, licensed under CC BY-SA
