Electronics & Semiconductors
The idea of creating a spin-based quantum computer using quantum dots was first introduced by Daniel Loss and David Di Vincenzo in 1998. Since then, countless engineers and physicists worldwide have been trying to realize ...
Robotics
Researchers at Shanghai University have developed a new method to achieve type synthesis of non-holonomic underactuated parallel mechanisms. Their method, presented in a paper published in Acta Astronautica, could aid the ...
Electronics & Semiconductors
Strontium titanate (SrTiO3), an oxide of strontium and titanium with a perovskite structure, has many advantageous properties, including spin-orbit coupling, electrical tunability, and unconventional superconductivity. Compared ...
Engineering
Australian researchers have demonstrated that perovskite solar cells damaged by proton radiation in low-Earth orbit can recover up to 100% of their original efficiency via annealing in thermal vacuum.
Jul 18, 2023
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68
Telecom
A team of Western Australian researchers have found a way to avoid the need to use radio transmitters in critical communications, using new technology featuring super-fast optical lasers.
Nov 9, 2022
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669
Hardware
Most space satellites are powered by photovoltaic cells that convert sunlight to electricity. Exposure to certain types of radiation present in orbit can damage the devices, degrading their performance and limiting their ...
Nov 8, 2022
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70
Robotics
Researchers have designed a state-of-the-art walking robot that could revolutionize large construction projects in space. They tested the feasibility of the robot for the in-space assembly of a 25m Large Aperture Space Telescope. ...
Oct 14, 2022
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110
Telecom
Launching this summer, NASA's Laser Communications Relay Demonstration (LCRD) will showcase the dynamic powers of laser communications technologies. With NASA's ever-increasing human and robotic presence in space, missions ...
May 13, 2021
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572
Engineering
While humans may struggle to navigate a murky, turbid underwater environment, weakly electric fish can do so with ease. These aquatic animals are specially adapted to traverse obscured waters without relying on vision; instead, ...
Jan 14, 2021
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48
Telecom
Amazon.com is one step closer to space.
Jul 31, 2020
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110
In physics, an orbit is the gravitationally curved path of one object around a point or another body, for example the gravitational orbit of a planet around a star.
Historically, the apparent motion of the planets were first understood in terms of epicycles, which are the sums of numerous circular motions. This predicted the path of the planets quite well, until Johannes Kepler was able to show that the motion of the planets were in fact elliptical motions.[citation needed] Isaac Newton was able to prove that this was equivalent to an inverse square, instantaneously propagating force he called gravitation.[citation needed] Albert Einstein later was able to show that gravity is due to curvature of space-time, and that orbits lie upon geodesics. This is the current understanding.
This text uses material from Wikipedia, licensed under CC BY-SA
