Suchergebnisse
Suchergebnisse:
Vor 23 Stunden · There, he explains gravity as a curvature of “spacetime”, the geometric merging of space and time, using its equations. In 1952, Yvonne Choquet-Bruhat reformulated Einstein's equations as an initial value problem, where spacetime is considered as the time development of a given initial state (the “average” of spacetime), and she proved local existence and uniqueness of the solutions.
Vor 23 Stunden · Space exploration is the use of astronomy and space technology to explore outer space. [1] While the exploration of space is currently carried out mainly by astronomers with telescopes, its physical exploration is conducted both by uncrewed robotic space probes and human spaceflight. Space exploration, like its classical form astronomy, is one ...
Vor 23 Stunden · Among other things : r/astrophysics. What is Space-Time? Among other things. Before I start this will be sort of a rant of questions just because I’ve been trying to wrap my head around all of this and I can’t and I’m trying to find some kind of satisfying answer (even though I understand that may not exist, the chaos of the universe ...
Vor 23 Stunden · A computer-generated clip of a flying object colliding with a celestial body has been viewed millions of times in Indonesian-language social media posts that falsely portrayed it as genuine footage of an asteroid hitting the Moon. The Moon has very little atmosphere that stops space rocks from striking its surface, scientists at the US space agency NASA said. Clips of the phenomenon uploaded ...
Vor 23 Stunden · The traditional method of manufacturing propellant tanks for rockets and spaceships involves significant amounts of forging, and machining, making it expensive and environmentally unfriendly. A novel approach for manufacturing propellant tanks that reduces the need for machining and friction stir welding processes has been presented in this paper. This approach involves manufacturing a tank ...
Vor 23 Stunden · Marshburn went to the International Space Station three times in his career, spending nearly an entire year in space — a total of 337 days. He also completed five spacewalks in his time onboard.
Vor 23 Stunden · singularity. There are no time-like geodesics that escape to infinity in both the past and the future, which is the same as saying there are none that travel between regions I and III. The throat is not traversable for time-like geodesics. On the other hand, space-like (K<0) geodesics that intersect the line segment (0,v)
