Date post: | 16-Jan-2015 |
Category: |
Documents |
Upload: | twuniversity |
View: | 233 times |
Download: | 1 times |
Our space-time
Question :
If the sun disappears suddenly, which planet would fly out of orbit first?
I got it!That is Gravity
Where universal gravity comes from
God create
it
Does universal Gravity exist?
General Relativity
Space travel: dream of human
The distance between earth and Plutois 44000000000km
the velocity the fastest spaceshipis 48km/s
€
44000000000 ÷ 48 ≈ 29year
One way is to make the spaceship faster.
But the nearest fixed star is 4.9 light year from us
The shortest distance between two points on a paper
The shortest distance between two points on a paper
Worm Hole
space travel will no longer be a dream