What? http://2012hoax.wikidot.com/forum/t-405160/what Posts in the discussion thread "What?" Mon, 17 Aug 2026 17:51:03 +0000 http://2012hoax.wikidot.com/forum/t-405160#post-1292112 (no title) http://2012hoax.wikidot.com/forum/t-405160/what#post-1292112 Thu, 27 Oct 2011 20:31:09 +0000 pedro but im serious when I say I have read a article that NASA says they going to send a spacecraft to to apophis and move it from orbit a little not because it is a danger but they see it like a good test in the future if it comes object that can hit the earth that they see they can move it , but I dont know how much prove it is in the article

]]> http://2012hoax.wikidot.com/forum/t-405160#post-1291993 Re: What? http://2012hoax.wikidot.com/forum/t-405160/what#post-1291993 Thu, 27 Oct 2011 18:04:30 +0000 obaeyens 612249 It is actually very hard for an asteroid to hit Earth.
Earth moves at a speed of about 30 km/s. You could calculate very easy how much time an asteroid has to hit earth at that spot. Diameter of earth in km divided by the 30 km/s and you have the time in seconds. ;-)

Most Asteroids move to fast to get captured by Earth so it must hit Earth straight on. basically a lucky shot.
And here is the interesting part, even if the asteroid hits the above atmosphere, it actually would bounce off like a stone over water. It really needs to have a straight on hit. There is no magical force that magically will pull it towards Earth.

]]> http://2012hoax.wikidot.com/forum/t-405160#post-1291987 Re: What? http://2012hoax.wikidot.com/forum/t-405160/what#post-1291987 Thu, 27 Oct 2011 17:58:52 +0000 Gangplank 1220719 Interesting. It'd be actually cool to see an asteroid being deflected.

]]> http://2012hoax.wikidot.com/forum/t-405160#post-1291972 Re: What? http://2012hoax.wikidot.com/forum/t-405160/what#post-1291972 Thu, 27 Oct 2011 17:47:46 +0000 obaeyens 612249

So, would anyone please explain this keyhole? How does it exactly work?

It is like you trying to win the Euro millions. How many times did you win the the 40,000,000 euros?

The keyhole is a theoretical location and time, that if the asteroid would get there at that time and place within a few km or so I think, that it might get back next time and risk hitting Earth. However a very tiny deviation, no matter how small will make it deviate it and will miss Earth even further.

And here is the interesting part, if it does hit that keyhole which is very very improbably, then all we need to do is put a rocket on it, speed it up and it will completely miss Earth next time.

]]> http://2012hoax.wikidot.com/forum/t-405160#post-1291946 What? http://2012hoax.wikidot.com/forum/t-405160/what#post-1291946 Thu, 27 Oct 2011 17:34:08 +0000 Gangplank 1220719 NASA is talking about a keyhole that apophis could hit in 2029, and if it hits it, it is going to hit in 2036.

So, would anyone please explain this keyhole? How does it exactly work?

Edit: forget this thread, I guess i should learn to use google

http://en.wikipedia.org/wiki/Gravitational_keyhole

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