What exactly is gravity?

What exactly is gravity?

Albert Einstein once described gravity as the warping of space and time in his theory of general relativity. But what exactly does that mean? YouTube personality Edward Current attempts to simplify this theory in a new YouTube video, using a so-called “Spacetime Stretcher,” built mostly out of materials from his garage and the hardware store.

What does Einstein mean by gravity?

An error occurred while retrieving sharing information. Please try again later. Albert Einstein once described gravity as the warping of space and time in his theory of general relativity. But what exactly does that mean?

Why is gravity important to the Earth?

This is because the moon has a smaller mass than the earth. Gravity is also why we weigh less on the moon, since weight (in pounds or kilograms) depends on the force of gravity on an object. Gravity even holds the earth’s atmosphere in place, causes the ocean’s tides, and keeps the moon and planets in their orbits. It’s truly an important force.

What is gravity according to Albert Einstein?

Albert Einstein described gravity as a curve in space that wraps around an object—such as a star or a planet. If another object is nearby, it is pulled into the curve. Anything that has mass also has gravity. Objects with more mass have more gravity.

What is the role of gravity in the universe?

Gravity in our universe. Gravity is what holds the planets in orbit around the sun and what keeps the moon in orbit around Earth. The gravitational pull of the moon pulls the seas towards it, causing the ocean tides. Gravity creates stars and planets by pulling together the material from which they are made.

How does gravity affect the mass of an object?

So, the closer objects are to each other, the stronger their gravitational pull is. Earth’s gravity comes from all its mass. All its mass makes a combined gravitational pull on all the mass in your body. That’s what gives you weight.