The video tutorial discusses gravitational waves, predicted by Einstein in 1916, and their significance in confirming general relativity. It highlights the impact of this discovery on our understanding of gravity and the universe, including insights into the Big Bang. The tutorial concludes with the detection of gravitational waves by LIGO, marking a century since Einstein's prediction.

What are gravitational waves?

• Light waves in a vacuum

• Sound waves in air

• Ripples in water

• Disturbances in spacetime

In what year did Einstein predict the existence of compact objects like black holes?

• 1905

• 1916

• 1921

• 1938

What theory is confirmed by the existence of compact objects?

• Theory of Evolution

• Newton's Laws

• Quantum Mechanics

• General Relativity

What significant event does the detection of gravitational waves help us understand?

• The formation of the Earth

• The Big Bang

• The extinction of dinosaurs

• The invention of the wheel

How many years after Einstein's prediction were gravitational waves detected?

• 50 years

• 75 years

• 150 years

• 100 years