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

kimwang53

Great articles. Thank you 古月小破烂 and Going: )

speed
1.57
1.47
2.43
2.07
2.30

obstacle
12.25
-star will die.
-bigger star die dramatic.
-what a death of a star which is 20 times bigger than sun looks like.
-velocity->nlack hole darkest chasm
nothing can go out of BH. Whenver a thing oes in, it disappears forever.
-Eintein does.'t believe BH is real.
John Michell: first mention the idea.
BH-> 1st breought in NY.
-BH immensc
-No one (will) saw BH. It's a whole lot of nothing.
-heat->jet stream.BH, gas cools...make galaxy.