Nanodiamonds are key to efficient hydrogen purification
Nanodiamonds may be tiny, but they can help with one of the biggest problems facing humanity today: climate change.
Dec 16, 2021
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Energy & Green Tech
Nanodiamonds may be tiny, but they can help with one of the biggest problems facing humanity today: climate change.
Dec 16, 2021
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130
Energy & Green Tech
For some, visions of a future powered by clean, renewable energy are clouded by fears of blackouts driven by intermittent electricity supplies. Those fears are misplaced, according to a new Stanford University study that ...
Dec 7, 2021
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Energy & Green Tech
Architectural firm Skidmore, Owings & Merrill gave a presentation last week at COP26 suggesting that skyscrapers of the future could remove more carbon dioxide out of the air than they emit. They have come up with a design ...
Energy & Green Tech
At the foot of an Icelandic volcano, a newly-opened plant is sucking carbon dioxide from the air and turning it to rock, locking away the main culprit behind global warming.
Nov 2, 2021
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Energy & Green Tech
A new attempt at purifying New Delhi's notoriously polluted air will see forty giant fans push out filtered air in the heart of the Indian capital's posh downtown shopping district.
Jul 22, 2021
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Robotics
Engineers at UC Riverside have unveiled an air-powered computer memory that can be used to control soft robots. The innovation overcomes one of the biggest obstacles to advancing soft robotics: the fundamental mismatch between ...
Jul 16, 2021
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Engineering
Having a home near a busy airport certainly has its perks. It is close to many establishments and alleviates the problem of wading through endless traffic to catch flights. But it does come at a cost—tolerating the jarring ...
Jul 13, 2021
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Energy & Green Tech
Storegga Geotechnologies, a UK energy transition company, and Carbon Engineering, a Canadian company involved in projects that remove carbon from the air, have teamed up to build a direct air capture (DAC) facility in Scotland. ...
Engineering
By now, it's well known that circulating outdoor air in buildings is safer than recirculating indoor air. That point was driven home by the pandemic. Problem is, it's just not cost-effective.
Jun 17, 2021
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26
Engineering
Inspired by a close encounter with a fellow aircraft during his years as a novice pilot, Merlin Labs founder Matt George found himself drawn to the idea of applying ground transportation safety methods to air traffic. Now, ...
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