Energy & Green Tech
California will ban the sale of new gasoline-powered passenger cars and trucks in 15 years, Gov. Gavin Newsom announced Wednesday, establishing a timeline in the nation's most populous state that could force U.S. automakers ...
Sep 23, 2020
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Energy & Green Tech
NIMS has found for the first time that a voltage increase that occurs in lithium-air batteries when they are being charged—a major issue preventing their practical use—is strongly and positively correlated with the degree ...
Sep 17, 2020
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Electronics & Semiconductors
Prof. Yogesh Gianchandani and Dr. Yutao Qin designed a fully electronic micro gas chromatography system to improve the detection and monitoring of indoor air pollutants. Their 2016 paper describing the research, "A fully ...
Sep 16, 2020
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Consumer & Gadgets
Apple Inc. will kick off a broad slate of new products at a virtual event on Tuesday, with upgrades to two of its most important hardware lines beyond the iPhone.
Sep 14, 2020
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Business
Many aircraft are still grounded due to the coronavirus pandemic, but would-be and real pilots took to the virtual skies on Tuesday with a cutting-edge update of Microsoft's venerable Flight Simulator game.
Aug 18, 2020
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Business
German airline giant Lufthansa said Thursday that demand for air travel will return to pre-crisis levels only in 2024 or even later as it announced forced layoffs on the back of a significant loss.
Aug 6, 2020
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Business
Microsoft confirmed Sunday it is in talks with Chinese company ByteDance to acquire the U.S. arm of its popular video app TikTok and has discussed with President Donald Trump his concerns about security and censorship surrounding ...
Aug 2, 2020
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Business
The Boeing 747 is an iconic jumbo jet that revolutionized air travel and tourism, allowing affordable flights for millions of people eager to see the world.
Jul 29, 2020
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A coalition of states is following California's lead in setting goals to jump-start a transition to electric-powered trucks, vans and buses in order to reduce greenhouse gas emissions and improve air quality for communities ...
Jul 19, 2020
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Business
American Airlines is notifying 25,000 workers that they could be furloughed beginning October 1, executives said Wednesday, the latest major carrier to warn about massive layoffs.
Jul 16, 2020
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The Earth's atmosphere is a layer of gases surrounding the planet Earth that is retained by the Earth's gravity. It has a mass of about five quadrillion metric tons. Dry air contains roughly (by volume) 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.038% carbon dioxide, and trace amounts of other gases. Air also contains a variable amount of water vapor, on average around 1%. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night.
There is no definite boundary between the atmosphere and outer space. It slowly becomes thinner and fades into space. An altitude of 120 km (75 mi) marks the boundary where atmospheric effects become noticeable during atmospheric reentry. The Kármán line, at 100 km (62 mi), is also frequently regarded as the boundary between atmosphere and outer space. Three quarters of the atmosphere's mass is within 11 km (6.8 mi; 36,000 ft) of the surface.
This text uses material from Wikipedia, licensed under CC BY-SA
