铀的放射性很难用在建造方面,军事方面却有关键用途;当然除了作为制造材料,铀棒主要用于能量燃料。
Laser ultrasound used to reveal the elasticity of space rock for the first time Nottingham UK (SPX) May 20, 2025 Scientists and engineers at the University of Nottingham have measured the stiffness of space rock for the first time. Many meteorites are made of crystalline materials, formed under...
the precision required to land a rover on Mars is staggering, as the Martian atmosphere is too thin to allow parachutes to slow down spacecraft in the same way as on Earth. Red Planet Day reminds us of the achievements of the scientists, engineers, and astronauts who make these missions po...
Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses (civil and military), pilot ships and travel...
The state Bureau of Radiation Control retrievedthe cylinder. They said the piece is toxic, but does not pose a health hazardto the community. They did say that if the couple had walked around the housewith the uranium in their pocket, they would get radiation sickness. ...
Scarcity mod for space engineers: update 2 Jun 10 2014 News 2 comments First things first, thank everyone who took interest in my mod! In this update refining efficiency re-balanced: refining times reduced by 10% for all ores except uranium. A single refinery now produces just about enough...
To design this new giant telescope, engineers will likely draw from two proposed observatory ideas that have already been sketched out in detail. Before completing the decadal survey, four teams of scientists came up with four different proposals for space telescopes, providing a framework for what...
(photons and energetic particles) and the possibility to conduct long-duration measurements, have been the main motivations for developing experimental concepts to expose chemical or biological samples to outer space, or to use the reentry of a spacecraft on Earth to simulate the fall of a ...
The measured quantity in a GR log is counts of the gamma rays emitted from three naturally occurring radioactive elements: thorium (Th), uranium (U) and potassium (K). When there is sufficient difference of GR responses among formations, GR is primarily used as the stratigraphic measurement ...
overit.CharliehastomakeuphismindwhethertogiveNixieaway...orhavehimputtosleep.”He chewedhislip.“We’llgethimapuponVenus.” “Itwon’tbeNixie.” “HecannameitNixie.He’llloveitasmuch.” “But—Charles,howisittherearedogsonVenusifit’ssodreadfullyexpensivetogetthemthere?” Page5 “Eh?Ithinkthe...