Engineering
Mohammad Asadi, assistant professor of chemical engineering at Illinois Institute of Technology, has published a paper in the journal Science describing the chemistry behind his novel lithium-air battery design. The insights ...
Feb 2, 2023
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Consumer & Gadgets
At the CES tech megashow in Las Vegas, it is unusual to see an entrepreneur hold up a plant and present it as the latest breakthrough in consumer technology.
Jan 7, 2023
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Consumer & Gadgets
A team of researchers from Brown University's School of Public Health, Brown's School of Engineering and Silent Spring Institute found that simple air filtration devices called Corsi-Rosenthal boxes are effective at reducing ...
Dec 23, 2022
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Energy & Green Tech
Nearly 10% of today's electricity in the United States comes from wind power. The renewable energy source benefits climate, air quality, and public health by displacing emissions of greenhouse gases and air pollutants that ...
Dec 2, 2022
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Energy & Green Tech
Oil and gas prices skyrocketed following the Russian invasion of Ukraine in spring 2022, creating a global energy crisis similar to the oil crisis of the 1970s. While some countries used the price shock to accelerate the ...
Oct 6, 2022
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Automotive
Researchers at Carnegie Mellon University believe they have developed the first AI pilot that enables autonomous aircraft to navigate a crowded airspace.
Aug 8, 2022
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Consumer & Gadgets
Opening the windows at night and pulling down shades during the sunniest part of the afternoon can keep homes from becoming dangerously hot during extreme heat waves.
Jun 24, 2022
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Energy & Green Tech
Researchers from Tokyo Metropolitan University have developed a new carbon capture system that removes carbon dioxide directly from the atmosphere with unprecedented performance. Isophorone diamine (IPDA) in a "liquid-solid ...
May 30, 2022
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Energy & Green Tech
Many of China's households still rely on small coal stoves for heat, which causes air pollution that damages health. To address these problems, the Chinese government launched a five-year "Clean Heating Plan" in 2017 with ...
Jan 10, 2022
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Energy & Green Tech
Research by the Oregon State University College of Engineering has uncovered a way to improve the efficiency of a type of grid-scale storage crucial for a global transition toward renewable energy.
Jan 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
