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The Basics of Gear Theory. Hermann J. Stadtfeld. Bevel Gears: By the Book Beginning with our June Issue, Gear Technology is pleased to present a series of full-length chapters excerpted from Dr. Hermann J. Stadtfeld’s latest scholarly — yet practical — contribution to .
What is the deleterious mutations theory of sex? "This is what I usually refer to as the engine-and-gearbox model. The notion is that if you buy two clapped out motor cars - one with an engine and no gearbox, the other with a gearbox and no engine - you can make one functional motor car out of them.
The engine and gearbox analogy is that if you have two clapped out Minis, one with no engine and the other one with no gearbox, you can actually make one working Mini by putting together the good engine and the good gearbox together in one car. And sex, by combining genes from different individuals.