Einstein's Theory Of Relativity | The Curvature of Spacetime | General Relativity | Dr. Binocs Show

Gravity is the invisible force that keeps us grounded and holds planets in orbit. Sir Isaac Newton described gravity as a force that pulls objects toward each other, with its strength depending on the objects' mass and distance. Newton's theory was groundbreaking but didn't explain everything, seeing gravity as an instantaneous magical force.

Before Einstein, space and time were considered separate. Einstein's theory of special relativity showed that space and time are connected into a single fabric called spacetime, and the speed of light is constant. This led to his realization that massive objects can bend spacetime.

To understand general relativity, imagine a trampoline with a bowling ball creating a dip. A marble rolled nearby will spiral toward the bowling ball due to the curve, not an invisible force. Similarly, the Sun bends spacetime, and planets follow these curves, which we perceive as gravity.

Since Einstein published his theory in 1915, many observations have proven him right, such as black holes warping spacetime and GPS satellites relying on general relativity due to time dilation caused by Earth's gravity. General relativity shows that gravity is the result of massive objects bending spacetime.

Einstein did not pass his college entrance exam on the first try. He excelled in science and mathematics but failed in other subjects like history, languages, and geography.