Engineering
A trio of researchers from Heriot-Watt University, University Paul Sabatier and the University of Sussex has developed an AI-based device equipped with a laser that can be used to shoot and kill roaches automatically. In ...
Consumer & Gadgets
Cyclists are one of the most vulnerable groups of people on our roads. Unlike car users, they are not protected by a metal exterior, and they tend to be harder for other drivers to see.
Jun 19, 2023
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Engineering
Researchers at Harvard University and China University of Petroleum recently developed dynamic speckle holography (DSH), a new technique to measure three-dimensional (3D) maps of displacements that combines imaging and scattering ...
Electronics & Semiconductors
Next-generation electronics will feature smaller and more powerful components that require new solutions for cooling. A new thermoelectric cooler developed by Penn State scientists greatly improves the cooling power and efficiency ...
Jul 14, 2023
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240
Engineering
For Chinese scientists at Jiangnan University, the shape of things to come rests on a ceramic slurry and 3D printing.
Robotics
Robots engineered for construction sites are in the news this week. Namely, there is a robot called the In-situ Fabricator. Described as an autonomous construction robot, one can put the accent on autonomous.
Telecom
Launching this summer, NASA's Laser Communications Relay Demonstration (LCRD) will showcase the dynamic powers of laser communications technologies. With NASA's ever-increasing human and robotic presence in space, missions ...
May 13, 2021
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Engineering
Additive manufacturing—or 3-D printing—uses digital manufacturing processes to fabricate components that are light, strong, and require no special tooling to produce. Over the past decade, the field has experienced staggering ...
Jul 27, 2020
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Electronics & Semiconductors
Physicists at Delft University of Technology have built a new technology on a microchip by combining two Nobel Prize-winning techniques for the first time. This microchip could measure distances in materials at high precision—for ...
Mar 22, 2023
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Hi Tech & Innovation
An advanced approach to fix wear damaged rails in remote locations using a repair technology has been shown to be viable for large-scale use using neutron scattering experiments.
Nov 30, 2021
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A laser is a device that emits light (electromagnetic radiation) through a process called stimulated emission. The term laser is an acronym for light amplification by stimulated emission of radiation. Laser light is usually spatially coherent, which means that the light either is emitted in a narrow, low-divergence beam, or can be converted into one with the help of optical components such as lenses. Typically, lasers are thought of as emitting light with a narrow wavelength spectrum ("monochromatic" light). This is not true of all lasers, however: some emit light with a broad spectrum, while others emit light at multiple distinct wavelengths simultaneously. The coherence of typical laser emission is distinctive. Most other light sources emit incoherent light, which has a phase that varies randomly with time and position.
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