All Questions
Tagged with earth estimation
82
questions
3
votes
5
answers
15k
views
If there were no space between nuclei, how big would the Earth be?
I have some people telling me it would be the size of baseball. I am quite doubtful on this. If this is true, then the gaps must be so incredibly huge that everything should be transparent. I am not a ...
- 63
1
vote
1
answer
665
views
How would a very nearby supernova shockwave and remnants affect the Earth?
I've been reading about supernovae for a while, and I noticed how incredibly fast their shockwave and remnants travel shortly after the explosion. So I thought about how this would affect the earth if ...
- 3,916
28
votes
2
answers
10k
views
How long until we fall into the Sun?
As a planet moves through the solar system, a bow shock is formed as the solar wind is decelerated by the magnetic field of the planet. Presumably the creation of this shock wave would cause drag on ...
- 16.6k
10
votes
1
answer
21k
views
How much energy would it take to blow up the Earth?
There is a common statement running around that we as a species has enough nuclear weapons to blow up the earth several times over. What I want to know is: by how many orders of magnitude is that a ...
- 203
7
votes
2
answers
3k
views
What would the effect be of a small black hole colliding with the earth?
If a small black hole (say about .1 mm radius or 1% of Earth's mass) came flying along at the speed of a comet or higher and impacted the earth, what would happen? Would it pass through the earth (and ...
- 846
6
votes
4
answers
3k
views
Can human push Earth away from the Sun?
It's said the earth is approaching the sun. Can we push it away little by little?
Although we can emit rocket towards the sun, but it's too expensive to make a rocket:
So I think maybe we can ...
- 255
38
votes
7
answers
8k
views
How fast a (relatively) small black hole will consume the Earth?
This question appeared quite a time ago and was inspired, of course, by all the fuss around "LHC will destroy the Earth".
Consider a small black hole, that is somehow got inside the Earth. Under "...
- 20.1k