Apple adds podcast subscriptions as competition mounts
Apple is adding a subscription option to its pioneering podcasting service, evidently moving to fend off fast-growing rival Spotify.
Apr 20, 2021
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Business
Apple is adding a subscription option to its pioneering podcasting service, evidently moving to fend off fast-growing rival Spotify.
Apr 20, 2021
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5
Energy & Green Tech
There is no cheaper way to generate electricity today than with the sun. Power plants are currently under construction in sunny locations that will supply solar electricity for less than 2 cents per kilowatt hour. Solar cells ...
Apr 15, 2021
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470
Japanese investment giant SoftBank Group will buy a 40 percent stake in Norwegian robotics company AutoStore in a deal worth $2.8 billion, the two firms said.
Apr 6, 2021
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Business
A majority Black venture capital firm, helmed by a technology veteran, a Hollywood producer, and a former mayor of Washington D.C., is leading a new $103 million fund to seed young companies started by people of color.
Mar 25, 2021
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Business
New research has found that online home rental marketplace Airbnb is funding deregulation campaigns in hundreds of cities around the world, as it uses so-called grassroots lobbying—apparently independent social movements ...
Mar 22, 2021
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Energy & Green Tech
Two types of materials are better than one when it comes to solar cells, as revealed by an international team that has tested a new combination of materials and architecture to improve solar-cell efficiency.
Mar 11, 2021
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101
Business
The Roblox game world that has won over children around the world and became a pandemic hit scored big on Wall Street Wednesday, as newly listed shares surged.
Mar 11, 2021
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Internet
Netflix on Wednesday added a "Fast Laughs" feature to its iPhone app, serving up comic clips in rapid fire, in a move taking on the popular video app TikTok.
Mar 3, 2021
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Engineering
Perovskites are a leading candidate for eventually replacing silicon as the material of choice for solar panels. They offer the potential for low-cost, low-temperature manufacturing of ultrathin, lightweight flexible cells, ...
Mar 1, 2021
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348
Engineering
They have improved a process for vertically depositing a solution made from an inexpensive perovskite solute onto a moving substrate below. Not only have they discovered the crucial role played by one of the solvents used, ...
Feb 22, 2021
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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