I noticed a toy helicopter recently with 2 sets of blades. It was a remote controlled vehicle and I presumed that the blades rotated in opposite directions to solve the torque problem. I thought this a clever solution.
A friend informed me that this is a solution that has been used in real helicopters. I was familiar with fore and aft rotors but unaware that a coaxial system existed!
Thoughts on Scripture, interpretation, and what Scripture might have to say about contemporary issues.
Tuesday, 16 November 2010
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