00427nam a2200133 a 450000500170000000800410001702000180005804100080007608200100008410000220009424501200011626400400023630000170027620260717092719.0260717s2001    ii            000 0 eng d  a9780060932565  aeng04a523.11 aDavis, Kenneth C.10aDont Know Much About the Universe : Everything you need to know about the cosmos but never lea /cDavis, Kenneth C. 1aNew York :bHarper Collins,cc2001.  axxiv, 344 p.