A文体:说明文主题:人与自然词数:347The universe, with its countless stars and galaxies, can be visually impressive, especially when we use high-powered telescopes to peer beyond the range of human vision. But what if we could hear those objects as well? That may sound impossible at first-how...
Th e universe, with its countless stars and galaxies, can b e visually impressive, especially when w e us e high-powered telescopes to peer beyond th e rang e of human vision.But what if w e could hear thos e objects as well? That may sound impossibl e at first-how can sounds trav...
"Dark matter is a hypothetical, invisible mass thought to make up 85 percent of the Universe's total bulk. Originally devised to account for galaxies holding together under high speed rotation, it has yet to be directly observed, leading physicists to propose all sorts of out-there ideas to ...
galaxies: evolutiongalaxies: high-redshiftstars: luminosity functionmass functionObservations of star-forming galaxies in the distant Universe (z> 2) are starting to confirm the importance of massive stars in shaping galaxy emission and evolution. Inevitably, these distant stellar populations are ...
Even if you know very little about the film, you'll likely have heard of Hal, the red-eyed AI who comes between Dave and his planned opening of the pod bay doors, or maybe you'll have seen that famous image of a fetus floating among the stars. These, along with many other enduring...
{{B}}B{{/B}}In the Milky Way we can see many ___ . A.galaxiesB.suns like oursC.stars like our sunD.both B and C 答案 D根据文中所述,银河系有无数个像太阳一样的恒星,据此,B、C意思相同,故选D。相关推荐 1{{B}}B{{/B}}In the Milky Way we can see many ___ . A.galaxies...
aWarning Stop use if skin rash occurs 警告中止用途,如果皮疹发生 [translate] aAstronomers can see nebulae, stars and other galaxies 正在翻译,请等待... [translate] a天文学家还可以看见星云、恒星和其他的星系 正在翻译,请等待... [translate] ...
we need to drastically cut the number of short-term postgraduate positions. If there aren't enough permanent positions in science, then students should be trained for positions outside academia and be allowed to exit academic research when they are still young, not after some of their most pro...
“Darn right they will,” muttered Lupov. “It all had a beginning in the original cosmic explosion, whatever that was, and it’ll all have an end when all the stars run down. Some run down faster than others. Hell, the giants won’t last a hundred million years. The sun will las...
of zero volume comes along with a geodesic incompleteness, divergence of curvature scalars or simply, a singularity. This process is best demonstrated by considering idealized collapsing spherical stars such as massive neutron cores [49,50], perfect/imperfect fluids [51,52,53] or scalar fields [...