Do You Know?
1. Since the earth rotates, can we not design a lift that transports people up, and waits until the destination comes, then brings them down?
2. Do plants die of old age?
3. How strong are gorillas?
4. How old is the Milky Way?
5. Does time stop for photons travelling at the speed of light?
6. How do we know the Earth's core is solid?