The environmental group Greenpeace issued a report on Tuesday giving technology titans including Samsung Electronics, Amazon and Huawei low marks for their environmental impact.
Energy & Green Tech
Oct 17, 2017
0
4
(Phys.org)—For the first time, researchers have demonstrated that shining a nanosecond pulsed laser at the base of a 100-µm-long diamond needle can significantly enhance electron emission from the tip of the needle. The ...
All plants need electrons to aid biological and chemical tasks. Cornell scientists have discovered a new high-definition system that allows electrons to travel through soil farther and more efficiently than previously thought.
General Physics
Apr 3, 2017
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778
A cover story appearing in the peer-reviewed journal Nanoscale Horizons reports a new bilayer material, with each layer measuring less than one nanometer in thickness, that someday could lead to more efficient and versatile ...
Nanomaterials
Feb 15, 2017
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1036
Researchers have demonstrated the high-performance potential of an experimental transistor made of a semiconductor called beta gallium oxide, which could bring new ultra-efficient switches for applications such as the power ...
Nanophysics
Jan 10, 2017
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618
Physicists from the Lomonosov Moscow State University have obtained micrometer-sized diamond crystals in the form of a regular pyramid. In cooperation with co-workers from other Russian and foreign research centers, they ...
Materials Science
Dec 30, 2016
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32
In an electron microscope, electrons are emitted by pointy metal tips, so they can be steered and controlled with high precision. Recently, such metal tips have also been used as high precision electron sources for generating ...
Optics & Photonics
Nov 15, 2016
2
2313
While previous studies have found that electronic cigarettes emit toxic compounds, a new study from Lawrence Berkeley National Laboratory (Berkeley Lab) has pinpointed the source of these emissions and shown how factors such ...
Analytical Chemistry
Jul 27, 2016
3
66
Scientists at ANU (The Australian National University) have improved the performance of tiny lasers by adding impurities, in a discovery which will be central to the development of low-cost biomedical sensors, quantum computing, ...
Nanophysics
Jul 5, 2016
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23
Radio frequency emission are considered incidental system noise in virtually all laptops, smartphones and other electronic devices, but scientists at Disney Research have found a way to use these spurious electromagnetic ...
Engineering
May 4, 2016
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