Linked Questions

-2
votes
1answer
127 views

How much time would it take for a black hole size of a proton to suck up a pen? [duplicate]

Suppose a black hole size of a proton appeared.Would it take it a lot of time to suck up a pen and eventually earth? What formulae should i use to calculate that?
2
votes
0answers
150 views

Could we have a black hole on Earth? [duplicate]

There was once a Far Side cartoon in which a black hole had opened in someone's living room and was sucking the furniture, people, pets, etc to the middle of the room. It was a funny picture, but ...
12
votes
4answers
3k views

What if the Chelyabinsk meteor had been a black hole of equivalent mass?

The Chelyabinsk meteor is estimated to have had a mass of 10,000 - 13,000 metric tons. A black hole of mass $13\times10^6\ \mathrm{kg}$ has a radius of $$ r = \frac{2GM}{c^2} = \frac{(2 \times 6....
7
votes
4answers
3k views

If there was a black hole on earth, what would it look like?

If an answer does exist, I'd love to hear it. I'm trying to incorporate a doomed earth story in something I'm writing, and the end of the world I'm going for is a black hole. Let's say the black hole ...
5
votes
2answers
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 ...
23
votes
4answers
798 views

What would happen if somebody dropped a small black hole into the Earth?

Suppose we drop a small black hole, but large enough that it accumulates mass more quickly than it radiates it, into the Earth. What happens? This question has already been asked here and here, but ...
0
votes
1answer
2k views

Smallest Black hole nessesary to devour Earth?

While looking into black holes I can across the idea of hawking radiation, and the fact that microscopic black holes would near instantaneously evaporate before doing any damage. However larger black ...
1
vote
1answer
282 views

How destructive would a small black hole be on the surface of the Earth?

Say a black hole with the diameter of around 200 meters or so was formed on the Earth's surface, how much damage would it cause?
1
vote
2answers
434 views

How big would a black hole have to be to absorb the Sun?

How big would a slow moving black hole have to be to absorb or otherwise destroy the Sun?
1
vote
1answer
165 views

Would a mini-blackhole collision with Earth cause heating? [duplicate]

Let's forget about the probability of this event. I am a mad scientist on the Moon, I created a micro black hole of the diameter $r=0.5cm$. I have to be fast before it evaporates due to Hawking ...
0
votes
0answers
72 views

I would like to know, what would happen if a primordial black hole mass of Earth, would impact with the Earth [duplicate]

Sorry for any mistakes, I'm Italian Hello everyone, I'm writing a novel, in which the Earth is devastated by enormous geological cataclysms (something like the end of the world), and to implement my ...