Family sues trading app Robinhood over suicide
The family of a college student who killed himself after thinking he'd lost a fortune using Robinhood sued the free trading app Monday.
Feb 9, 2021
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Business
The family of a college student who killed himself after thinking he'd lost a fortune using Robinhood sued the free trading app Monday.
Feb 9, 2021
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Electronics & Semiconductors
Although silicon anodes could greatly boost the capacity of Li-ion batteries, their performance rapidly degrades with use. Polymeric coatings can help solve this problem, but very few studies have explored the underlying ...
Feb 5, 2021
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Engineering
New research conducted by the Okinawa Institute of Science and Technology Graduate University (OIST) has identified a specific building block that improves the anode in lithium-ion batteries. The unique properties of the ...
Feb 5, 2021
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Business
Executives at Google parent company Alphabet will report quarterly earnings on Tuesday, seeking to highlight the internet titan's money-making success while mindful of regulators concerned about the firm's clout.
Feb 2, 2021
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Business
The city of Miami, with a growing reputation as a financial services center enhanced by its balmy climate and low taxes, is now making a concerted and increasingly successful push to attract hi-tech firms from Silicon Valley ...
Jan 24, 2021
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Energy & Green Tech
A new study shows how researchers at The Australian National University (ANU) achieved a world record in solar cell efficiency.
Jan 22, 2021
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Business
California WeChat users sued its parent company Tencent on Wednesday, saying the mobile app is used for spying on and censoring users for the Chinese government.
Jan 21, 2021
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Energy & Green Tech
To increase the performance of solar panels, an international collaboration—including researchers from King Abdullah University of Science & Technology (KAUST) and U of T Engineering—has created a bifacial, or two-sided, ...
Jan 12, 2021
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Electronics & Semiconductors
Silicon has proved to be a highly valuable and reliable material for fabricating a variety of technologies, including quantum devices. In recent years, researchers have also been investigating the possible advantages of using ...
Engineering
In autonomous vehicles, advanced technology takes the wheel, allowing passengers to sit back and enjoy the ride. Yet such systems have to meet stringent safety standards. For example, an autonomous vehicle must be able to ...
Jan 4, 2021
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14
Silicon (pronounced /ˈsɪlɨkən/ or /ˈsɪlɨkɒn/, Latin: silicium) is the most common metalloid. It is a chemical element, which has the symbol Si and atomic number 14. The atomic mass is 28.0855. A tetravalent metalloid, silicon is less reactive than its chemical analog carbon. As the eighth most common element in the universe by mass, silicon very rarely occurs as the pure free element in nature, but is more widely distributed in dusts, planetoids and planets as various forms of silicon dioxide (silica) or silicates. On Earth, silicon is the second most abundant element (after oxygen) in the crust, making up 25.7% of the crust by mass.
Silicon has many industrial uses. It is the principal component of most semiconductor devices, most importantly integrated circuits or microchips. Silicon is widely used in semiconductors because it remains a semiconductor at higher temperatures than the semiconductor germanium and because its native oxide is easily grown in a furnace and forms a better semiconductor/dielectric interface than any other material.
In the form of silica and silicates, silicon forms useful glasses, cements, and ceramics. It is also a constituent of silicones, a class-name for various synthetic plastic substances made of silicon, oxygen, carbon and hydrogen, often confused with silicon itself.
Silicon is an essential element in biology, although only tiny traces of it appear to be required by animals. It is much more important to the metabolism of plants, particularly many grasses, and silicic acid (a type of silica) forms the basis of the striking array of protective shells of the microscopic diatoms.
This text uses material from Wikipedia, licensed under CC BY-SA