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Please note!

    Listed below are questions submitted by users of "From Stargazers to Starships" and the answers given to them. This is just a selection--of the many questions that arrive, only a few are listed. The ones included below are either of the sort that keeps coming up again and again, or else the answers make a special point, often going into details which might interest many users.


For a complete list, including earlier questions not listed below, click here.
You may also link from here to a listing of questions arranged by topic.
  1. The 2011-2 sunspot maximum
  2. Is Earth adding mass?
  3. Shape of a "bottle rocket"
  4. Fantasy spaceflight vs. reality
  5. Telling a 7-year old about stars "dying"
  6. (1) Why is lightning jagged?     (2) What did Tesla do?
  7. How can the north wall of my house be in sunlight?
  8. Heating the inside of Earth
  9. Dawning of the Age of Aquarius
  10. Why is hydrogen the fuel of choice?
  11. Gamma ray bursts
  12. Counter-clockwise swirling motion in the atmosphere
  13. Leap years on the Jewish calendar
  14. Earth axis tilt and climate (1)
  15. Earth axis tilt and climate (2)
  16. Does the Sun move?
  17. Can the Sun interfere with the visibility of the Big Dipper?
  18. Why can't we feel the Earth's rotation?
  19. Is our galaxy held together by a central black hole?
  20. Why don't gas planets just evaporate?
  21. Source of the Sun's energy
  22. Point of gravity equilibrium
  23. Solar system motion through the Galaxy
  24. Spaceflight by waiting for the Earth to turn?
  25. Does Earth rotation affect size of creatures?
  26. The year 2012
  27. Are our galactic arms winding up or opening up?
  28. Advice to a home-schooling mother
  29. Are all stars we see suns?

  30. Newton's 3rd law
  396A Posssibility of Asteroid Hitting Earth (1)
  396B Posssibility of Asteroid Hitting Earth (2)
  1. Author's IQ
  2. Global Warming caused by Sun getting nearer?
  3. The year 2012
  4. Empty space behind North Star?
  5. The year 2012 and the 26,000 year cycle
  6. "Quarter Squares"
  7. Do Rockets need "something to push against"?
  8. Sunrise-Sunset asymmetry
  9. Re-entry from orbit
  10. Earth Axis and Gravity
  11. The year 2012
  12. Choosing an Aerospace Career
  13. Advice for "new" physics teacher
  14. Paradox of Time Travel
  15. Is 7th grade Earth science boring?
  16. Air Resistance
  17. Experimenting with Microwave Oven
  18. Is the Sun losing mass?
  19. Sun's position at noon, south of equator
  20. Fred Hoyle's theory of the Sun's Corona
  21. Why don't Protons and Electrons combine?
  22. Days in a Year
  23. Position of the Moon in the sky

  24. Earth crossing Galactic Equator?
  25. Is the geocentric theory ruled out?
  26. Does the Southern Sky have a Pole Star?
  27. What is the fate of starlight energy?
  28. Double-slit diffraction of particles
  29. Does the Sun overhead reduce effective weight?
  30. Evidence for Global Warming ?
  31. Distances to the Equator
  32. Weight on the Equator and at the Pole
  33. Why doesn't gravity overcome buoyancy?
  34. The Prime Meridian
  35. Is L2 in the Earth's Shadow?
  36. In what direction is Israel from NY?
  37. Is the World Overpopulated?
    Magnetic Energy
  38. Magnetic Carnot Cycle
  39. Defining the Equator

  40. Second Moon for Earth?
  41. The year 2012 and a distant companion of our Sun
  42. Distance between two points on a sphere
  43. Getting sucked I by Gravity
  44. The work of Nikola Tesla
  45. Firing a cannon straight up
  46. Does one see half the sky--or more, or less?
  47. Why are nights dark?
  48. The origin of the Solar System
  49. Flying to other planets
  50. The heat of the Sun's corona
  51. Crossing our galaxy's equator
  52. Newton's 3rd law--in statics and dynamics
  53. Barycenter of Earth-Moon system
  54. What if Earth rotated in only 10 hours>

  55. What Book covers material of "Stargazers"?
  56. Climate Change
  57. A classroom Demonstration
  58. Why doesn't the Solar System Collapse?
  59. A Diamond Core for Jupiter?
  60. Why no "artificial gravity" on the space station?
  61. Precession of the axis of Mars
  62. Does the axis of the Sun precess?
  63. Can a microwave oven produce 900 deg Celsius?
  64. Beaming energy through space
  65. The year 2012
  66. The Earth's Precession Cycle
  67. The empty space inside an atom



Author and Curator:   Dr. David P. Stern
     Mail to Dr.Stern:   stargaze("at" symbol)phy6.org .

Last updated 11-21-2008