A definitive and authoritative treatment of astrometric measurement and fills the gap between relativistic treatises or research papers and the practical requirements of observational astronomers, astrophysicists and graduates.
The guide to vector analysis that helps students study faster, learn better, and get top grades
More than 40 million students have trusted Schaum's to help them study faster, learn better, and get top grades. Now Schaum's is better than ever-with a…
A variable star is a star whose brightness as seen from Earth (its apparent magnitude) fluctuates. This variation may be caused by a change in emitted light or by something partly blocking the light, so variable stars are classified as either
Het boek "Van Spoetnik tot Spaceshuttle, de geschiedenis van de ruimtevaart". Een uitvoerig verslag van de geschiedenis van de luchtvaart ruim voorzien van zwart wit foto's. Een uitgave van 1980 samengesteld door Chriet Titulaer.