Engineering
A group of scientists have discovered a new application to generate and store chilled water to reduce the impact of air conditioning on the environment, reduce energy consumption, and lower dependence on fossil fuels.
Dec 12, 2023
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Business
As the winter holidays draw near, many of us are already booking flights to see friends and family or vacation in warmer climates. Nowadays, air travel is synonymous with some form of in-flight entertainment, encompassing ...
Dec 8, 2023
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Automotive
Air taxis hold the promise to revolutionize air transportation. NASA is working to make this vision a reality, collaborating with industry to reduce aircraft noise in our communities.
Dec 7, 2023
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Business
When Jungsang Kim came to Duke University in 2004, he wasn't sure he'd live long enough to witness quantum advantage: the elusive moment when a quantum computer outperforms a classical computer to solve a real-world problem.
Dec 6, 2023
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Business
Airlines should carry a record number of passengers next year as the sector puts the COVID-19 pandemic behind it, the industry's top trade association said Wednesday, although profitability remains a concern.
Dec 6, 2023
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Business
A UK watchdog on Wednesday banned three online adverts from airlines Air France, Etihad Airways and Lufthansa for "misleading" claims over their environmental impact.
Dec 6, 2023
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Engineering
Millions of homes were built before Australia introduced housing energy efficiency standards in 2003. They're leaky. Gaps around windows, doors and between building materials allow air to move in and out. So people tend to ...
Dec 6, 2023
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Automotive
BMW is recalling a small number of SUVs in the U.S. because the driver's air bag inflators can blow apart in a crash, hurling metal shrapnel and possibly injuring or killing people in the vehicles.
Dec 3, 2023
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Energy & Green Tech
If we are to save the planet, we are going to have to use energy far more efficiently.
Dec 1, 2023
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Other
Picture this: you're nestled comfortably in your seat cruising towards your holiday destination when a flight attendant's voice breaks through the silence:
Nov 28, 2023
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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
