Energy & Green Tech
A do-it-yourself device that started life as a hobby and took off during COVID-19 could help to unlock the next generation of solar energy, including advanced technology for space missions.
Aug 24, 2022
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99
Engineering
Russia is building a new ground-based laser facility for interfering with satellites orbiting overhead, according to a recent report in The Space Review. The basic idea would be to dazzle the optical sensors of other nations' ...
Jul 27, 2022
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6
Engineering
Powder-based laser beam melting (LPPF) is probably the best-known AM process and has great potential for industrial applications. But how can the limited range of materials for this process be circumvented and the market ...
Jul 25, 2022
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31
Engineering
NIMS and Osaka University Graduate School of Engineering have succeeded in fabricating a nickel single crystal with only a very few crystalline defects by irradiating nickel powder with a large-radius, flat-top laser beam ...
Jul 12, 2022
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30
Engineering
Forget the old rallying cry "There's gold in them thar hills." Silver, a precious metal in precious short supply, is up on the rooftops.
Jul 6, 2022
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24
Engineering
3D printing has opened exciting new avenues for engineers and forced product designers to reimagine what is possible. The ability to print complex metallic parts using advanced alloys anywhere in the world is undoubtedly ...
May 30, 2022
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326
Software
Three-dimensional (3D) mapping is a very useful tool, such as for monitoring construction sites, tracking the effects of climate change on ecosystems and verifying the safety of roads and bridges. However, the technology ...
May 19, 2022
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72
Software
Vibrations during 3D printing either slow down the process or warp the parts, but new software could enable manufacturers to keep up the speed without sacrificing accuracy.
May 17, 2022
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35
Engineering
A laser-textured friction disk could reduce maintenance costs and downtime for the biggest ships sailing on the oceans. Man Energy Solutions tested laser-textured friction disks on its two-stroke engines on two ships sailing ...
Apr 29, 2022
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15
Energy & Green Tech
Until now, wastewater treatment plants have not been able to sufficiently filter out tiny microplastics in wastewater, but this could soon change: The first laser-drilled microplastic filter is being tested in a wastewater ...
Apr 1, 2022
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27
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.
This text uses material from Wikipedia, licensed under CC BY-SA
