Automobiles were still in their relative infancy in 1905, but they had been growing more popular for years. There was a problem, though: they were extremely noisy. One cause of the noise were the ...

Click to open image viewer. In 1925, Continental, a successful manufacturer of automotive engines, purchased the rights for a Burt-McCollum single-sleeve valve engine design. Believing this technology ...

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Add Yahoo as a preferred source to see more of our stories on Google. Automobiles were still in their relative infancy in 1905, but they had been growing more popular for years. There was a problem, ...