Pfeiffertheface.com

Discover the world with our lifehacks

# What if there was a black hole the size of a coin?

## What if there was a black hole the size of a coin?

The Earth would be destroyed, but the whole planet would not be swallowed up by the black hole. A black hole with a Schwarzschild radius of about a centimeter, which would make it about the size of a coin, would have about the same mass as the Earth.

## Can a black hole be the size of a penny?

A U.S. cent is around 19mm in diameter, so if someone were to shrink the Earth down to a little less than the size of a U.S. cent, it would become a black hole. This means that the theoretical black hole penny would have a little bit more mass than the Earth.

How much mass does a black hole the size of a penny have?

the radius of a black hole (the Schwarzschild radius) is given by the formula r=2Gm/c2. Doing the math, it turns out that, curiously, a black hole the diameter of a penny would have about the same mass as the earth itself.

### What is the actual size of a black hole?

Stellar-mass black holes are typically in the range of 10 to 100 solar masses, while the supermassive black holes at the centers of galaxies can be millions or billions of solar masses. The supermassive black hole at the center of the Milky Way, Sagittarius A*, is 4.3 million solar masses.

### What is bigger Uy scuti or 618?

The largest star Some would say the largest object in the universe is UY Scuti, the largest known star. It’s a red supergiant with a mass “only” 7–10 times the mass of the Sun, but with a radius up to 1,708 times the size! That’s only 0.3% the size of TON 618, but obviously still stupendously large.

What is a white hole NASA?

White holes are theoretical cosmic regions that function in the opposite way to black holes. Just as nothing can escape a black hole, nothing can enter a white hole. White holes were long thought to be a figment of general relativity born from the same equations as their collapsed star brethren, black holes.

#### Are white holes real?

The short answer, unfortunately, is no. White holes are really just something scientists have imagined — they could exist, but we’ve never seen one, or even seen clues that one may exist. For now, they are an idea. To put it simply, you can imagine a white hole as being a black hole in reverse.

#### What if we sent a nuke to the sun?

It’s safe to say the nuclear bomb will have no effect at all. But actually it’s even harder than that to perturb the sun. The nuclear bomb would be vaporised long before it reached the surface. It could be detonated in space somewhere near the sun.

Can a bullet detonate a nuke?

Short answer: It’s very unlikely. As you read above, causing a nuclear bomb to detonate requires a precise orchestration of events, without which the chain reaction does not initiate and the bomb doesn’t detonate.