Across
- 2. who thought humans could suvive better in space
- 3. who built the space time continuem
- 5. who built nucleire bombs
- 6. who's equations saw grvatation waves could bend/elongate time
Down
- 1. who helped advocate space travel
- 4. who came up with the equation E=MC2
- 5. who thought that roundness effected everything including light