【Native Speaker每日综合训练—45系列】【45-10】科技 Black Hole

neverland1021

谢谢古月和going~
1'36[254 words]
reset the time: before the universe is born: before 13.8billion years ago
what is before the universe? what is the seed of the universe?=>A seed of black hole

1'18[243 words]
multiverse: there is not only one universe

2'00[354 words]
E theory: indefinite point=>singularity
A Russian scientist: this point is real and it is the link(root) between two universe
speculation: human is the product of another(mother) universe

1'57[324 words]
the shape of a galaxy is like the eye of S in the Lord ring
to calculate the distance between the ring of this spiral galaxy can help scientists to calculate the mass of the black hole

1'52[324 words]
the mass of black hole is underestimated
how to observe the galactic eye of Sauron by ourselves.

9'14[1462 words]
describe the death of some stars =>ten time bigger than sun: supernova, 20 times bigger than sun=>
black hole
E 推导(deduce)the existence of black hole, but his nature refuses to admit its existence
the unpopular and unacceptable black hole theory =>utterly common theory now
we cannot observe the existence of black hole directly=>maybe something is even crazier than black hole
the experiments designed to observe black hole indirectly