Engineering
Light-emitting diodes (LEDs) have created far-reaching impacts on display and lighting industries. For a LED to emit light, the minimum voltage is widely considered to be equal to the bandgap voltage of the material, in consideration ...
Jul 5, 2022
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14
Engineering
LeviPrint is a system that uses acoustic manipulation for assembling objects without physical contact. It generates acoustic fields that trap small particles, glue droplets and elongated stick-like elements that can be manipulated ...
Jun 29, 2022
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35
Hardware
Researchers from INNOVENT e.V. and Ferdinand-Braun-Institut gGmbH have developed a measurement technique to detect nanoscale fluorescent thin films for the first time without using expensive laboratory equipment. Fluorescent ...
Jun 29, 2022
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3
Hi Tech & Innovation
With no one at the wheel, a self-driving taxi developed by tech giant Baidu Inc. is rolling down a Beijing street when its sensors spot the corner of a delivery cart jutting into its lane.
Jun 29, 2022
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6
Engineering
Researchers have imagined, designed, and tested an elegant lens device that can efficiently gather light from all angles and concentrate it at a fixed output position. These graded index optics also have applications in areas ...
Jun 27, 2022
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143
Energy & Green Tech
Stacking solar cells increases their efficiency. Working with partners in the PERCISTAND project, researchers at the Karlsruhe Institute of Technology (KIT) have produced perovskite/CIS tandem solar cells with an efficiency ...
Jun 27, 2022
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149
Computer Sciences
Quantum computers are one of the key future technologies of the 21st century. Researchers at Paderborn University, working under Professor Thomas Zentgraf and in cooperation with colleagues from the Australian National University ...
Jun 22, 2022
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33
Automotive
Teslas with partially automated driving systems are a step closer to being recalled after the U.S. elevated its investigation into a series of collisions with parked emergency vehicles or trucks with warning signs.
Jun 9, 2022
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8
Software
The light turns green. Then, suddenly, the sound of screeching brakes turns into the sickening crunch of metal on metal. A surprisingly high number of auto accidents—21% of all car crashes—occur at intersections with ...
Jun 2, 2022
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6
Energy & Green Tech
Researchers have taken inspiration from the world of plants to develop innovative and efficient nanoparticles that could be used to build the solar panels of the future.
May 31, 2022
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258
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
