 Entertaining Mathematical Puzzles
Only an elementary knowledge of math is needed to enjoy this entertaining compilation of brain-teasers. It includes a mixture of old and new riddles covering a variety of mathematical topics: money, speed, plane and solid geometry, probability, topology, tricky puzzles and more. Carefully explained solutions follow each problem. 65... | | The Best Enemy Money Can BuyBack in 1973 this author published National Suicide: Military Aid to the Soviet Union, itself a sequel to a three volume academic study, Western Technology and Soviet Economic Development, published by the Hoover Institution, Stanford University. These four books are detailed verifiable catalogs of Western technology used and in use by the Soviet... | | |
