Across
- 2. From our perspective, time seems to flow endlessly in _____ direction.
- 4. _____ are conduits through space-time that link different places or times together.
- 9. _____discovered that time could run at different rates and is experienced individually.
- 10. With a _____, hours could be divided into minutes and seconds.
- 12. Albert Einstein was working in a _____ office when he first started thinking about time.
Down
- 1. To get the most accurate measurement of time, NIST uses _____ atoms.
- 3. To prove Einstein's idea about time and motion, scientists took an _____ clock around the world.
- 5. The _____ was the first clock.
- 6. Using a _____, people divided a day into 24 hours.
- 7. Events that we think can unfold in only one direction can also happen in _____.
- 8. The tendency of everything in the universe to move from order to disorder is called _____.
- 11. The idea that everyone experiences time in the same exact way was established by _____.
