if the world exploded would we know about it?

Answer 1

It depends on what exactly you mean by "the world." In general, if any global cataclysm took place, you would almost definitely be dead before you could comprehend what was happening. If the Earth actually exploded, we'd know the moment it happened, and then we'd be dead. If the Sun went nova, we would only find out 8.3 minutes later, in the instant of our death, because the Sun is 8.3 light minutes away. Similarly, if a gamma ray burst took place 20 light years from the Solar System, it would kill us instantly, 20 years later, which would also be the same moment in which we learned of it. Because information can't travel faster than light, there is no way we could get advance warning of impending doom from space, unless something observable happens before. For example, if a star 20 light years away were observed to triple in brightness and this was identified as a sign of a gamma ray burst to occur two years later (which is not known to happen, in actuality), then it would mean that the gamma ray burst had happened 18 years earlier, and then maybe we could do something to protect ourselves in the two years we would have left.

Answer 2

Oh yeah, it ought to harm bigtime. An explosion valuable adequate to damage earth ought to really reason important discomfort to human bodies, although only for a short second because you'd be useless presently in a while. yet why difficulty over something that's now unlikely to take position? Are you lower than the impact that Hollywood writers and administrators are documentarians? they don't look. they are entertainers, generating entertainments with the only purpose of keeping apart you out of you money. they don't look engaged in a campaign to warn the standard public about actual risks, they attempt to positioned butts in theater seats. that's all. The earth can not explode! If there have been any danger that it ought to, it ought to have by using now. that's been round 4 and a 1/2 BILLION years! What makes you imagine (I pretty a lot suggested 'imagine', yet that's not what you're doing) that that's going to blow up now?

Answer 3

Before the earth explodes there would be signs telling us that something is going to happen. For example, the earth would probably get hotter, the weather could change its cycle. Things like that.

Answer 4

Watch the movie "The Day the Earth Stood Still"... if you can find it on DVD.

Answer 5

I'd probably be quaffing a pint, so I don't think I'd notice. As long as my beer didn't spill.

Answer 6

No ..God only knows... So you should be always prepared... because it will just come the time you are not expecting it.....

Answer 7

yes

Answer 8

Oh yes. But not for long.

Answer 9

no because it happens so fast u would not feel it

Answer 10

After we're dead.