Crash landing: Global air transport hit hard by virus
The COVID-19 pandemic has battered the air transport sector by all but grounding planes, resulting in layoffs, bankruptcies and rescue plans.
May 26, 2020
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Business
Page 15 - News tagged with air
Energy & Green Tech
New battery coating could improve smart phones and electric vehicles
High performing lithium-ion batteries are a key component of laptops, smart phones, and electric vehicles. Currently, the anodes, or negative charged side of lithium ion batteries, are generally made with graphite or other ...
Apr 17, 2017
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Engineering
Sunrise to sunset, a new window coating blocks heat, not view
Windows welcome light into interior spaces, but they also bring in unwanted heat. A new window coating blocks heat-generating ultraviolet and infrared light and lets through visible light, regardless of the sun's angle. The ...
Apr 2, 2024
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Business
Green aviation still has electrifying future despite virus
The aviation industry has long been under pressure to reduce pollution, and while airlines have taken a financial wallop from the coronavirus crisis it may not stop a greening of the skies.
Jun 19, 2020
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Energy & Green Tech
Dandelion wants to play a role in home geothermal
Not familiar with residential geothermal heating? No surprise. Chris Martin in Bloomberg explained that "Residential geothermal heating is uncommon, in part because the expense and effort to dig the wells make them costly ...
Engineering
This humidity digester breathes in atmospheric water and exhales energy
Integrating a super moisture-absorbent gel with light-active materials, researchers in Singapore have developed a humidity digester to dry the ambient air while generating energy. The method, presented November 20 in the ...
Nov 20, 2019
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Robotics
Small flying robots haul heavy loads
A closed door is just one of many obstacles that poses no barrier to a new type of flying, micro, tugging robot called a FlyCroTug. Outfitted with advanced gripping technologies and the ability to move and pull on objects ...
Oct 24, 2018
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Engineering
Researchers demonstrate new capability for cooling electronics
For decades, researchers have considered the potential for cooling hot electronic devices by blowing on them with high-speed air jets. However, air jet cooling systems are not widely used today. Two of the biggest obstacles ...
Feb 18, 2020
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Energy & Green Tech
Norway aims for all short-haul flights 100% electric by 2040
All of Norway's short-haul airliners should be entirely electric by 2040, the country's airport operator said on Wednesday, cementing the Nordic nation's role as a pioneer in the field of electric transport.
Jan 17, 2018
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Engineering
Discovering materials for gas turbine engines through efficient predictive frameworks
Gas turbines are widely used for power generation and aircraft propulsion. According to the laws of thermodynamics, the higher the temperature of an engine, the higher the efficiency. Because of these laws, there is an emerging ...
Aug 25, 2022
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Earth's atmosphere
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
