Questions from 1997

1. What is the density of a human being?
   (January 7, 1997)

2. Why does ionization energy increase across any period in the perodic table?
   (January 7, 1997)

3. How do sunspots cause power outages?
   (January 8, 1997)

4. How did the car from the TV show 'Knight Rider' slow down enough to get inside a moving truck?
   (I think this one is my favorite question!)
   (January 9, 1997)

5. Why are computers not displayed accurately in movies?
   (January 13, 1997)

6. What causes the sound sometimes heard with aurorae?
   (January 21, 1997)

7. How fast must something move to drop a sound in pitch by one octave?
   (January 25, 1997)

8. What was the biggest supernova?
   (January 29, 1997)

9. How many supernovae have there been?
   (January 29, 1997)

10. When will the planets align?
    (February 11, 1997)

11. How many photons hit Hubble?
    (February 18, 1997)

12. Why are dwarf stars colored?
    (February 21, 1997)

13. What would the sky look like near a red dwarf star?
    (March 3, 1997)

14. How long is Hale-Bopp's tail?
    (March 14, 1997)

15. How many stars are in the constellation Orion?
    (May 23, 1997)

16. What happens when something travel faster than the speed of light?
    (May 24, 1997)

17. Why are tides from the Moon stronger than from the Sun?
    (May 26, 1997)

18. Why don't we put sthatellites in orbit around other planets?
    (May 30, 1997)

19. What did I see? (a bright meteor!)
    (June 3, 1997)

20. Where is the Hubble Space Telescope right now?
    (June 6, 1997)

21. Do bubbles ever flow downwards?
    (August 11, 1997)

22. Why are there two tidal bulges?
    (August 11, 1997)

23. At what temperature does paper burn?
    (August 11, 1997)

24. Please explain the fourth dimension.
    (August 12, 1997)

25. What's the hottest temperature in the Universe?
    (August 19, 1997)

26. Why won't we launch another space telescope?
    (September 2, 1997)

27. Why doesn't the Earth look round?
    (October 17, 1997)

28. Can you see stars from space?
    (October 12, 1997)