Archive for May 28th, 2010

Friddle: What type of engine is pistonless and has a crankshaft that remains stationary while the block rotates around it?
Check our blog next Friday for the answer and another Friddle.
Last Week’s Friddle: What is the historical significance of the earliest known motor vehicle to feature a mounted rear-view mirror?
Last Week’s Friddle Answer: Ray Harroun’s Marmon “Wasp” which won the inaugural Indy 500
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