"We must be ready to dare all for our country. For history does not long entrust the care of freedom to the weak or the timid. We must acquire proficiency in defense and display stamina in purpose." - President Eisenhower, First Inaugural Address
Thursday, August 23, 2007
The science of washboard roads
Up in the area where we vacation, a couple of dirt roads form part of the boundaries of the property. Last time we were there, I commented on the "washboard road" and we had some discussion about what makes the washboarding appear. Now, a couple of scientists have a theory, which can be found at Road Bumps: Why dirt roads develop a washboard surface.
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