What would happen if the Earth's rotation were sped up until a day only lasted one second? How far would a tungsten countertop descend if I dropped it into the Sun? Has humanity produced enough paint to cover the entire land area of the Earth?

Randall Munroe has been answering absurd questions with serious scientific answers on his website and now is bringing the best together in this talk.

His book 'What If?: Serious Scientific Answers to Absurd Hypothetical Questions' will be published 4 September. Get your book and ticket to the event for the special price of £20.

This event is now SOLD OUT. To be added to the waiting list, please visit our Eventbrite page.