A novel artificial intelligence system that predicts air pollution levels
Imagine being scared to breathe the air around you.
Mar 18, 2020
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153
Machine learning & AI
Imagine being scared to breathe the air around you.
Mar 18, 2020
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153
Engineering
An Air Force Research Laboratory and Air Force Test Center ground test team set a record for the highest thrust produced by an air-breathing hypersonic engine in Air Force history.
Aug 10, 2019
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24
Hi Tech & Innovation
Luxury air travel faster than the speed of sound: A US start-up is aiming to revive commercial supersonic flight 50 years after the ill-fated Concorde first took to the skies.
Jul 18, 2018
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37
Software
Before airplanes even reach the runway, pilots must file a plan to inform air traffic controllers where they're going and the path they are going to take. When planes are in the air, however, that plan often changes. From ...
Nov 24, 2023
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3
Energy & Green Tech
Professor Jeremy Michalek and his Ph.D student Matthew Bruchon have published a study investigating what vehicle electrification would look like in a world where ridesourcing companies like Uber and Lyft were held responsible ...
Feb 22, 2021
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31
Robotics
Hacked bank and Twitter accounts, malicious power outages and attempts to tamper with medical records threaten the security of the nation's health, money, energy, society and infrastructure. Harnessing the laws of nature—namely ...
May 25, 2022
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293
Automotive
With air turbulence presenting a significant safety concern in civil aviation, especially amidst the growing impacts of climate change and the expansion of the aviation industry, the need for effective monitoring and mitigation ...
Apr 8, 2024
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7
Business
United Airlines aims to bring back supersonic travel before the decade is over with a plane that is currently just an artist's drawing—even the prototype hasn't flown yet.
Jun 3, 2021
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3
Engineering
This equipment would help tackle the increase of electricity bills during the summer. They are based on using thermo-solar panels to cool the room.
Jul 7, 2021
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9
Energy & Green Tech
More than 90 percent of the world's energy use today involves heat, whether for producing electricity, heating and cooling buildings and vehicles, manufacturing steel and cement, or other industrial activities. Collectively, ...
Aug 11, 2020
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86
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