Scientists design method to lessen reliance on air conditioning
Scientists say they have found a way to cool buildings that will reduce dependence on energy-hungry air conditioners.
Jul 9, 2024
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Engineering
Scientists say they have found a way to cool buildings that will reduce dependence on energy-hungry air conditioners.
Jul 9, 2024
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Automotive
When the idea of electric air taxis emerged, Los Angeles was vying to be one of the first cities that would utilize the technology to help people avoid its infamous bumper-to-bumper traffic. Some city transportation officials ...
Jun 27, 2024
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Hi Tech & Innovation
As a Delta Air Lines jet began roaring down a runway, an air traffic controller at New York's John F. Kennedy International Airport suddenly blurted out an expletive, then ordered the pilots to stop their takeoff roll.
Jun 13, 2024
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Business
Airlines may not be replacing pilots with artificial intelligence anytime soon, but aviation industry experts say the new technology is already revolutionizing the way they do business.
Jun 3, 2024
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Business
Federal regulators have given Amazon key permission that will allow it to expand its drone delivery program, the company announced Thursday.
May 30, 2024
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Hi Tech & Innovation
A study by researchers from Nanyang Technological University, Singapore (NTU Singapore) has found that Singaporeans are open to riding air taxis, which are small autonomous aircraft that carry passengers over short distances. ...
May 28, 2024
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Engineering
Officials throughout the state of California have developed plans to start deploying green hydrogen at scale in the coming decade in order to reach California's 2045 climate neutrality targets. A new analysis, published by ...
May 21, 2024
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Business
In light of recent news regarding congressional action on aviation safety, Penn State News spoke with Amy Pritchett, department head of aerospace engineering and professor in Penn State's College of Engineering. Pritchett ...
May 21, 2024
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Energy & Green Tech
A record-breaking heat wave is broiling parts of Asia, helping drive surging demand for cooling options, including air-conditioning.
May 3, 2024
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Automotive
If you're a resident of Hull, Lynn, Salem, or other Massachusetts towns currently exposed to noise from aircraft approaching Boston Logan Airport, you may notice the skies getting a little quieter this year.
Apr 19, 2024
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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