Who invented Blackhole?
Who invented Blackhole?
Albert Einstein first predicted the existence of black holes in 1916, with his general theory of relativity. The term “black hole” was coined many years later in 1967 by American astronomer John Wheeler.
What is inside a Blackhole?
A black hole is a tremendous amount of matter crammed into a very small — in fact, zero — amount of space. The result is a powerful gravitational pull, from which not even light can escape — and, therefore, we have no information or insight as to what life is like inside.
Does time stop in a black hole?
Near a black hole, the slowing of time is extreme. From the viewpoint of an observer outside the black hole, time stops. Inside the black hole, the flow of time itself draws falling objects into the center of the black hole. No force in the universe can stop this fall, any more than we can stop the flow of time.
Can you survive inside a black hole?
Time freezes at the event horizon and gravity becomes infinite at the singularity. The good news about massive black holes is that you could survive falling into one. Nothing can escape from inside the event horizon, so you could not escape or report on your experience.
Where do things go in a black hole?
It is thought that the matter that goes into a black hole gets crushed into a tiny point at the center called a “singularity”. That’s the only place that matter is, so if you were to fall into a black hole you wouldn’t hit a surface as you would with a normal star. Once it’s there, it’s there.
Is a black hole hot or cold?
Black holes are freezing cold on the inside, but incredibly hot just outside. The internal temperature of a black hole with the mass of our Sun is around one-millionth of a degree above absolute zero.
What if our Sun became a black hole?
Even if the Sun somehow converted into a black hole without the initial expansion, explosion and, inevitably, mass loss that normally accompany such transformation, a solar mass black hole will still be tiny! Black holes are about mass squeezed into a point of infinite density, called singularity.
Is our sun white?
The color of the sun is white. The sun emits all colors of the rainbow more or less evenly and in physics, we call this combination “white”. That is why we can see so many different colors in the natural world under the illumination of sunlight.
Is space actually colorful?
It’s in black and white. You might not know this, but almost every photo of space starts out this way. Additionally, most telescopes only take black-and-white pictures, the most prominent of which probably being the Hubble Telescope. Now, look at the colored picture.
Why outer space is black?
Since there is virtually nothing in space to scatter or re-radiate the light to our eye, we see no part of the light and the sky appears to be black.
Why is space purple?
While the hot X-ray emissions detected by Chandra are shown in purple, the image also combines visible light captured by the Hubble Space Telescope shown in red, green and blue. The purple areas that appear fuzzy are thought to be superheated gas left over from supernova explosions of giant stars.
What Colour is space?
But as Nasa has pointed out the real colour of outer space would not look out of place on an office wall: it is beige. After studying the colour of light emitted by 200,000 galaxies scientists have combined them to produce the colour, they have dubbed ‘cosmic latte’.
Is our Sun green?
Our sun is a green star. In the sun’s case, the surface temperature is about 5,800 K, or 500 nanometers, a green-blue. However, as indicated above, when the human eye factors in the other colors around it, the sun’s apparent color comes out a white or even a yellowish white.
Do you age faster in space?
Spaceflight influences biology in dramatic ways, and people in space appear to experience the effects of aging faster than people on Earth.
Do you get taller in space?
Astronauts in space can grow up to 3 percent taller during the time spent living in microgravity, NASA scientists say. That means that a 6-foot-tall (1.8 meters) person could gain as many as 2 inches (5 centimeters) while in orbit. Once the astronauts return to Earth, their height returns to normal after a few months.
