What would happen if you got sucked into a black hole?
In the case of black holes, the pull is so strong that nothing – not even light – can escape. A black hole is so massive that time itself starts to warp. You wouldn’t feel anything different as you fell in, but to anyone watching, you would appear to slow.
Where is the nearest black hole to Earth?
Very few black holes of this mass have been found in the universe. This black hole is 1,500 light years away from Earth, still inside the Milky Way galaxy.
How many black holes are there in Milky Way?
100 million
How big are black holes?
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.
Can we make a black hole?
In principle, a black hole can have any mass equal to or above about 2.21×10−8 kg or 22.1 micrograms (the Planck mass). To make a black hole, one must concentrate mass or energy sufficiently that the escape velocity from the region in which it is concentrated exceeds the speed of light.
How much sound is needed to make a black hole?
1100 dB is the volume level at which the shockwave compresses the air to a density sufficient to make micro black holes the size of a neutron. 724 dB is the volume level of a shockwave which compresses air to a compact mass of neutrons, with density the same as a neutron star.
How loud is 60 decibels?
Topic Overview
| Noise | Average decibels (dB) |
|---|---|
| Normal conversation, background music | 60 |
| Office noise, inside car at 60 mph | 70 |
| Vacuum cleaner, average radio | 75 |
| Heavy traffic, window air conditioner, noisy restaurant, power lawn mower | 80–89 (sounds above 85 dB are harmful) |
What does 125 decibels sound like?
100 – 120 decibels: For example, a bulldozer, impact wrench, or motorcycle. 120 – 140 decibels: Such as, a rock concert, auto racing, or a hammer pounding a nail. 125 – 155 decibels: Like, firecrackers or fireworks, or a jet engine. 170 – 190 decibels: For example, a shot gun blast or a rocket lift off.