Telecom
A space-enabled system to help clear congested skies while reducing carbon emissions is going global, following a deal signed today between satellite communications provider Inmarsat and ESA.
Jun 9, 2022
0
38
Consumer & Gadgets
Apple on Monday provided a peek at upcoming tweaks to the software that powers more than 1 billion iPhones and rolled out two laptops that will be the first available with the next generation of a company-designed microprocessor.
Jun 6, 2022
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31
Energy & Green Tech
As CO2 emissions continue to grow, the world is becoming ever more reliant on the removal of carbon dioxide from the atmosphere to achieve urgent climate targets. Direct air capture (DAC) is a promising novel technology for ...
Jun 6, 2022
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52
Engineering
A new type of energy efficient, ecologically sustainable cooling technology that does not require the use of climate-damaging refrigerants is currently being developed by Professor Stefan Seelecke and his team at Saarland ...
Jun 2, 2022
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15
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
3
389
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
0
293
Business
China's zero-COVID policy will hold back a full air travel recovery in the Asia-Pacific region, a top airline industry group warned Tuesday, adding to calls for Beijing to ease its hardline stance.
May 17, 2022
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3
Energy & Green Tech
Sceptics say that far from helping save the planet, electric cars are a liberal pipe-dream whose environmental benefits are exaggerated.
May 16, 2022
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43
Energy & Green Tech
Australia has no clear strategy to decarbonise transport. That's a problem, because without a plan, our take-up of clean technologies like electric cars, trucks and buses is slow. It's stopping us from meeting our climate ...
May 11, 2022
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9
Automotive
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
2
22
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
