Business

Apple bends, aiming to avoid Big Tech regulation

Apple has unveiled major changes to its app store after years of criticism, as the Silicon Valley colossus tries to stave off a deeper, swelling effort to regulate Big Tech, experts said Thursday.

Business

Theranos founder's fraud trial to begin in US

A female entrepreneur whose multi-billion dollar start-up looked set to revolutionize medical testing, before it crashed and burned in a blaze of fraud claims, goes on trial next month.

Business

Apple's Tim Cook gets $750mn bonus payout

Apple chief executive Tim Cook has received a bonus of some $750 million, reflecting his performance at the US technology giant in his 10 years at the helm, a regulatory filing showed.

Hardware

Reappraisal of Moore's law through chip density

Researchers at The Rockefeller University have shed new light on Moore's Law—perhaps the world's most famous technological prediction—that chip density, or the number of components on an integrated circuit, would double ...

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Silicon

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.

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