100 Years of Relativity + Challenge Winners!

The video celebrates the 100th anniversary of Einstein's general relativity, explaining its impact on our understanding of the universe. It introduces an asteroid challenge involving the hypothetical scenario of redirecting Apophis using a gravitational tractor. The video details the calculations needed, including Newtonian mechanics and the rocket equation, to determine the mass and fuel requirements for the mission. It concludes with a teaser for future episodes and a break for Thanksgiving.

What significant event related to Albert Einstein occurred on November 25th, 2015?

Explain the concept of gravitational tractor as mentioned in the text.

What was the mass needed to achieve the acceleration required to change Apophis's position?

Describe the rocket equation and its relevance in the context of the challenge.

What was the exhaust velocity of the pulsed fusion drive mentioned in the text?

How much fuel mass was estimated to be needed to redirect Apophis?

What was the outcome for those who successfully answered the challenge question?