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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23
Engineering
Page 27 - News tagged with air
Business
UN agency rejects COVID vaccine as air travel prerequisite
COVID-19 vaccinations should not be required for international travel, the UN civil aviation agency said Friday as part of updated pandemic guidelines for the air transportation sector.
Mar 12, 2021
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22
Engineering
Advanced simulation of air currents can result in more habitable cities
Densely packed housing makes urban areas vulnerable to overheating, pollution and dangerous wind gusts. The effects of climate change can aggravate these problems, but we can also work to prevent them. This can be done by ...
Jun 14, 2023
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6
Telecom
Developing a radar network for safe flight operations at vertiports
For the first time, visitors at the 2024 Olympic Games will be able to fly to venues using air taxis. Vertical takeoff aircraft such as drones, multirotors and air taxis will take off from and land on pads known as vertiports.
Feb 1, 2024
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1
Automotive
Companies envision taxis flying above jammed traffic
As urban traffic gets more miserable, entrepreneurs are looking to a future in which commuters hop into "air taxis" that whisk them over clogged roads.
May 9, 2022
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22
Engineering
Air filter showcases excellent performance and endurance in harsh environments
A team of researchers has designed a high-performance composite sponge that works effectively to filter particulate matter in high temperature and high humidity environments. The sponge, with its excellent mechanical properties, ...
Oct 3, 2022
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102
Business
Air France hopes to double destinations by July
Air France said Monday it hoped to double the number of cities it serves, including over 40 European destinations, by the end of June as nations begin to lift coronavirus travel restrictions.
May 18, 2020
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7
Business
Flying green will be more expensive
Under huge pressure to go green, the aviation industry needs to spend billions of dollars to become more climate-friendly in what risks ramping up fares and making air travel the preserve of the rich once again.
Oct 22, 2021
1
22
Automotive
Renault CEO urges 'Marshall Plan' for Europe electric vehicles
The chief executive of French automaker Renault called Tuesday for a European "Marshall Plan" to accelerate the adoption of electric vehicles and reduce carbon emissions in the face of Chinese competition.
Mar 19, 2024
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1
Automotive
Beat traffic by air: Israel flies drone taxi over Jerusalem
An air taxi flew over Jerusalem on Wednesday as part of an Israeli experiment to develop a network of drones to offer transport services and ease traffic congestion.
Sep 13, 2023
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19
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
