Space engineers develop green, solar-powered air conditioning
The ingenuity of four space engineers has created a zero-emission air-conditioning system that doesn't pollute our atmosphere when we turn it on.
Jun 7, 2016
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The ingenuity of four space engineers has created a zero-emission air-conditioning system that doesn't pollute our atmosphere when we turn it on.
Jun 7, 2016
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97
A quickly growing global population presents a variety of challenges, and raises the critical question: How can we sustainably meet energy needs while considering—and preventing—environmental and human impacts? An ever-increasing ...
May 30, 2016
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A project doer who is concerned about the effects of poor air quality has made a video in Singapore, "AI for Liveable Cities." Poor air quality is not just a challenge faced by Singapore, he said, with 7 billion of us sharing ...
Amazon wants to acquaint us with their future delivery system, which has been designed to get packages to customers in 30 minutes or less using small unmanned aerial vehicles—yes, drones.
Kristof Retezár, an Austrian designer, has come up with Fontus, which was designed as a self-filling water bottle for your bicycle. This device collects the moisture from the air, condenses it and stores it as safe drinking ...
On a remote patch of the windy, frozen Beaufort Sea north of Alaska, engineers from NASA's Jet Propulsion Laboratory in Southern California huddled together, peering down a narrow hole in a thick layer of sea ice. Below them, ...
Aug 29, 2024
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More than 50% of ride-hailing trips taken by surveyed riders in California replaced more sustainable forms of transportation—such as walking, cycling, carpooling, and public transit—or created new vehicle miles, according ...
Aug 28, 2024
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The Korea Institute of Energy Research (KIER) has developed, for the first time in the country, a refrigeration technology that uses air as a refrigerant instead of Freon gas, hydrofluorocarbons (HFCs), and other refrigerants ...
Aug 27, 2024
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An eco-friendly technology inspired by plant and animal mechanisms has been developed in South Korea for the first time. The portable moisture-harvesting system collects moisture from the air, purifies it, and produces drinkable ...
Aug 20, 2024
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Air quality has become one of the most important public health issues in Africa. Poor air quality kills more people globally every year than HIV, TB and malaria combined. And that's just the tip of the iceberg. Air pollution ...
Aug 15, 2024
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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