Business
European aircraft maker Airbus said on Tuesday it is planning to cut around 15,000 jobs worldwide, 11 percent of its total workforce, in response to the "gravest crisis" the industry has ever seen caused by the coronavirus.
Jun 30, 2020
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Energy & Green Tech
Low-income households in the United States are bearing an energy burden that is three times that of the average household, according to the U.S. Department of Energy. In total, more than 46 million U.S. households carry a ...
Feb 27, 2024
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Engineering
Ensuring school classrooms are well ventilated is key to reducing the risk of COVID-19 transmission and maintaining academic performance, research from The University of Queensland has revealed.
Sep 16, 2022
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Business
Global air transport is on course to return to profit after two pandemic-battered years but the war in Ukraine and the cost-of-living crisis lurk as threats, the industry's world body said on Monday.
Jun 20, 2022
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Business
Delta Air Lines said Friday it was will reduce hours for some employees as it projected a stunning 90 percent drop in second-quarter revenue due to the coronavirus outbreak.
Apr 4, 2020
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Business
Aerospace giant Airbus announced Friday that it is withdrawing from a Canadian government call for proposals to replace 88 aging fighter jets.
Aug 30, 2019
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2
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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5
Business
The pandemic will have no long-term impact on the need for new aircraft, according to a market outlook released Saturday by European plane maker Airbus, which foresees greener fleets emitting less CO2.
Nov 13, 2021
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3
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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Consumer & Gadgets
Exoskeletons to give wearers super-human strength and games to playfully teach children software skills for coding—such innovations were on display at the Consumer Electronics Show this week.
Jan 9, 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
