Hardware
Annealing processors are designed specifically for addressing combinatorial optimization problems, where the task is to find the best solution from a finite set of possibilities. This holds implications for practical applications ...
Mar 25, 2024
0
49
Other
Imagine a world of aerial delivery drones bringing goods right to your door, small air taxis with fewer than six passengers flying about cities, supersonic airliners crossing continents and oceans, and sixth-generation fighter ...
Dec 11, 2020
0
8
Consumer & Gadgets
At the CES tech megashow in Las Vegas, it is unusual to see an entrepreneur hold up a plant and present it as the latest breakthrough in consumer technology.
Jan 7, 2023
0
34
Energy & Green Tech
Picture two homes on the same street: one constructed in the 1950s and the other in the 1990s. There are no trees or other shade. The air conditioning units are identical, recently replaced, and operating perfectly. Identical ...
Aug 3, 2023
0
13
Robotics
Throughout history, war has been irrevocably changed by the advent of new technologies. Historians of war have identified several technological revolutions.
Apr 28, 2023
0
32
Energy & Green Tech
Nearly 20% of today's electricity in the United States comes from nuclear power. The U.S. has the largest nuclear fleet in the world, with 92 reactors scattered around the country. Many of these power plants have run for ...
Apr 10, 2023
0
202
Telecom
The latest generation of smartphones, 5G, can interfere with aircraft altitude instruments, the French Civil Aviation Authority warned Tuesday as it recommended they should be turned off during flight.
Feb 16, 2021
0
109
Business
Proper maintenance procedures are in place to ensure that planes grounded for months or years due to worldwide travel restrictions are not an additional danger when they fly again.
Jan 21, 2021
0
5
Business
Air France-KLM will slash 40 percent of its French domestic flights by next year in exchange for receiving seven billion euros ($7.7 billion) in emergency coronavirus funding backed by the French state, the company's chief ...
May 27, 2020
0
5
Telecom
Five years ago, a team of researchers from the University of Texas at Austin boarded an $80-million yacht with the intent of trying to fool the vessel's navigation system and stealthily push it off course.
Mar 23, 2018
0
33
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
