Uncategorized
- Physics
Road Bumps: Why dirt roads develop a washboard surface
Experiments and a computer simulation show why dirt roads develop a washboard surface, and indicate the only way to prevent it: Drive very slowly.
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19872
The research described in this article draws sound conclusions. However, the context suggests the tests were done at constant speeds. I submit there is yet another cause. It has been my observation that washboarding occurs initially and primarily at areas where there is acceleration, such as coming out of curves and starting up inclines. Don […]
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Depression Defense: Sick elderly get mood aid from home treatment
Instructional therapy to promote coping strategies helps elderly people with incipient blindness ward off depression—at least in the short run.
