What accelerates the solar wind?
• Why does the rising Sun look so big? • Drawing a Perpendicular Line in Rectangular Coordinates • Unequal Seasons • Is the Big Dipper visible from Viet Nam? • Holes in a Solar Sail • Consequences of no more solar X-rays • Science Fair Project on the Size of the Earth • Superposition of Waves • The Sun and Seasons If you have a relevant question of your own, you can send it to audavstern(“at” symbol)erols.com Before you do, though, please read the instructions • Re-entry from Space I am taking an Introduction to Astronomy course and the question of manned space flight came up as we studied atmosphere. Supposedly, upon re-entering the Earth’s atmosphere, the re-entry vehicle, say the Command Module from a Saturn V rocket, had to do so within the arc of a precise angle or else it would bounce off of the atmosphere helplessly into space. The instructor for this class, a Ph.D. in Physics, seems to think that the Van Allen Belt is the reason for this need for precision, but I believe it has
