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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Business
American Airlines said Tuesday it will cut more than 40,000 jobs, including 19,000 through furloughs and layoffs, in October as it struggles with a sharp downturn in travel because of the pandemic.
Aug 25, 2020
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Business
Air France-KLM on Thursday announced a second-quarter loss of 2.6 billion euros ($3.1 billion), thanks to grounded flights during the virus pandemic, adding that the twin airlines must "significantly reduce" the workforce.
Jul 30, 2020
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Business
US airlines announced additional steps Friday to ground planes and curtail executive pay as they prepare for an unprecedentedly bad travel market in the near-term.
Mar 13, 2020
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Energy & Green Tech
With air conditioner demand surging, scientists are looking for ways to improve the energy efficiency of cooling systems and limit damaging emissions that accelerate global warming.
Aug 2, 2023
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Business
New low-cost airline Wizz Air Abu Dhabi is to launch operations from the United Arab Emirates capital Abu Dhabi in the second half of 2020, the partners in the venture announced Monday.
Mar 2, 2020
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Automotive
Many airline passengers naturally worry about flying. But on a worldwide basis, commercial air travel keeps getting safer, according to a new study by MIT researchers.
Aug 7, 2024
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Energy & Green Tech
If you're anything like me, you're increasingly working from home, one that was built before energy efficiency measures were introduced in Australia.
Jun 17, 2022
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Engineering
Southwest Research Institute engineers are advancing what researchers know about hypersonic flight. A new study presented at the 2019 Joint Army-Navy-NASA-Air Force (JANNAF) Propulsion Meeting describes a series of tests ...
Oct 8, 2019
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Energy & Green Tech
Southwest Research Institute (SwRI) demonstrated the effectiveness of its CAT-DEF technology during the WCX World Congress Experience in Detroit, which took place April 5–7. The advancement successfully reduced heavy-duty ...
May 6, 2022
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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
