Why Gravity is not a Force | Einstein's Gravity Explained Part - 1

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ExploreX

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Published on October 28, 2023 2:39:22 PM ● Video Link: https://www.youtube.com/watch?v=9z1Hb0s4bss

Game:

Gravity (1990)

Duration: 4:36

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In this video, we are going to discuss What is GRAVITY, and why it is called a Fake force.

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.

Gravity not only pulls on mass but also on light. Albert Einstein discovered this principle. If you shine a flashlight upwards, the light will grow imperceptibly redder as gravity pulls it. You can't see the change with your eyes, but scientists can measure it.

Black holes pack so much mass into such a small volume that their gravity is strong enough to keep anything, even light, from escaping.

Gravity on Earth
Gravity is very important to us. We could not live on Earth without it. The sun's gravity keeps Earth in orbit around it, keeping us at a comfortable distance to enjoy the sun's light and warmth. It holds down our atmosphere and the air we need to breathe. Gravity is what holds our world together.

However, gravity isn’t the same everywhere on Earth. Gravity is slightly stronger over places with more mass underground than over places with less mass. NASA uses two spacecraft to measure these variations in Earth’s gravity. These spacecraft are part of the Gravity Recovery and Climate Experiment (GRACE) mission.

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FOOTAGE CREDITS
Source free Internet clips and images, NASA, Pexels, Movie - Interstellar, Arpan Jolly YT - Newton animation

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CHAPTERS:-

0:00 Introduction
0:30 Newton's Scenario
1:25 Einstien's Scenario
2:07 Inertial Observer
2:51 Non-Inertial Observer
4:04 Space Time - Part 2
4:20 Ending..


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Hastags - #gravity #force #earth #space #planets #solarsystem #gravitation #physics #astrophysics #sun #cosmos

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