Classifications are tentative, and some entries appear under more than one heading. A list of Q&As listed in the order of their submission is on
In "The Exploration of the Earth's Magnetosphere" on the magnetic environment of Earth in space.
5. General Physics
5a. General Physics--Electromagnetic Radiation
5b. General Physics--Gravity
5c. General Physics--Misc
--with no energy input. Why?
(294) What is a "field"?
6. Elementary Astronomy
7. Earth and its motion
7b. Earth atmosphere
7c. Calendar and related items
7d. Shape and size of the Earth
7e. Earth and its other motions
8. Questions about space
(a) What is a "Sun Synchronous" orbit?
(b) Why are satellites launched from near the equator?
(439) Distance between two points on a sphere
13. For Teachers and Students
(489) Message from Michigan
Go to main listing of questions
Author and Curator: Dr. David P. Stern
Mail to Dr.Stern: stargaze("at" symbol)phy6.org .
Last updated 25 February 2012