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
Page 8 - News tagged with air
Energy & Green Tech
Researchers point the way to avoiding blackouts with clean, renewable energy
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
COP26: Architectural firm envisions skyscrapers that capture CO2
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
In Iceland, CO2 sucked from the air is turned to rock
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
Smog tower to help Delhi breathe but experts sceptical
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
Air-powered computer memory helps soft robot control movements
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
Shape-memory alloys might help airplanes land without a peep
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
Plans in place to build carbon capture facility in Scotland that can capture a million tonnes a year
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
Bring the outdoors in: The energy-efficient method for using 100% outdoor air in buildings
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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Engineering
Merlin Labs develops autonomous 55-craft King Air fleet
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, ...
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
