Rajaa
Hakutulokset: Hakutulos
Rajaa
yksi hakutulos.
Black Holes & Time Warps
nidottu,
1995,
englanti,
ISBN 9780393312768
Which of these bizarre phenomena, if any, can really exist in our universe? Black holes, down which anything can fall but from which nothing can return; wormholes, short spacewarps …