A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Not only are there rogue planets floating through space completely alone, not orbiting any stars, but it’s possible that these pitch-black lonely planets support life.
14
Your thumb is about the same size as your nose.
124
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
Lurch, a Watusi bull, had the largest horns in the world.
32