This is a playist - use the arrows to advance to the next video. There are 5 in total.
Why does light bend due to gravity? Does the phrase "initial reference frame" bring you out in a cold sweat?
What is the significance of a 16th century ping-pong paddle to and how is it linked to the famously mis-named "twin paradox"?
The answers to all these questions and more (some profound, others less profound) await.....