Robotics
A three-year research project at Mid Sweden University has made several advancements in creating the airport of the future with safe and cost-effective solutions, including autonomous measurements of the runway surface as ...
Apr 24, 2024
0
1
Automotive
Did you know that your biggest daily exposure to air pollutants comes while driving your car to work?
Jan 14, 2020
0
7
Energy & Green Tech
The smartphone era is only just over a decade old, but the pocket-sized computers at the heart of that societal transformation are only really possible because of another technology: lithium-ion batteries.
Jul 15, 2019
0
1
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
Business
Tens of thousands of travelers faced flight delays and cancelations Friday as workers at eight airports in Germany went on strike for better pay.
Feb 17, 2023
0
3
Energy & Green Tech
A research group led by Prof. Ge Ziyi from the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the Chinese Academy of Sciences has developed two self-assembled molecules (SAMs) with large dipole moments ...
Apr 1, 2024
0
33
Business
Organisers of the Paris Air Show said on Monday that they have cancelled next year's edition of the event because of the COVID-19 pandemic.
Dec 7, 2020
0
6
Energy & Green Tech
In a new University of Michigan study, researchers set out to understand the air pollutant emissions impacts of electrifying motorcycle taxis in Kampala, Uganda.
Feb 21, 2022
0
21
Business
The future of top regional budget carrier AirAsia is in "significant doubt" after the collapse in travel demand caused by coronavirus, its auditor warned, sending the airline's share price tumbling nearly 18 percent on Wednesday.
Jul 8, 2020
0
4
Internet
Facebook on Friday said users around the world again had problems accessing its services for hours due to a tweak of its system, just days after a massive outage caused in a similar fashion.
Oct 9, 2021
0
11
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
