Business
Amazon's cloud computing unit Amazon Web Services experienced an outage on Tuesday, affecting publishers that suddenly found themselves unable to operate their sites.
Jun 14, 2023
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Engineering
Densely packed housing makes urban areas vulnerable to overheating, pollution and dangerous wind gusts. The effects of climate change can aggravate these problems, but we can also work to prevent them. This can be done by ...
Jun 14, 2023
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Engineering
The air quality in underground road tunnels tends to be worse than in other road environments due to the poor air circulation. To address this issue, researchers at the Korea Institute of Civil Engineering and Building Technology ...
Jun 5, 2023
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Energy & Green Tech
As the aviation industry seeks to cut its carbon footprint, Boeing has just signed a deal to help its quest for a sustainable jet fuel, and it's tied to an unlikely source: the ocean.
Jun 2, 2023
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Business
France on Tuesday formally banned domestic flights on short routes that can be covered by train in less than two-and-a-half hours—a move aimed at reducing airline emissions that has also irked the industry.
May 23, 2023
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Business
Cryptocurrency transactions may be costing more than just transaction fees. The electricity used for these transactions is more than what some countries, like Argentina and Australia, use in an entire year.
May 22, 2023
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Energy & Green Tech
Eight EU member states including France, Italy and Poland urged Brussels to scrap its planned vehicle emissions limits, warning they risked hurting investment in a document seen by AFP Monday.
May 22, 2023
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Energy & Green Tech
The global airline industry is fast recovering from the unprecedented pause to flying imposed by COVID-19. In some parts of the world, such as the Middle East, airlines are even expanding rapidly—well beyond pre-pandemic ...
May 17, 2023
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Business
The rate of lost, damaged or delayed luggage nearly doubled last year as air travel rebounded and the sector faced staff shortages following the COVID pandemic, a study found on Tuesday.
May 16, 2023
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Energy & Green Tech
With potential high density, low cost and a nature-friendly makeup, zinc-air batteries are touted to be the future of many energy devices.
May 9, 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
