Great debunked scientific theories of yesteryear

Sheep do not grow on trees. Your dirty laundry cannot give birth to a mouse. Plowing the soil will not ensure plenty of rain. Check out Matt Simon's great list of these and other truthy ideas that once had mainstream traction and vaguely plausible scientific explanations.

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  1. I'm gratified and relieved to see that neither phlogiston nor spontaneous human combustion were among the "debunked" sciency things in that list.
    In fact, I believe it's simply an unintended release of the body's phlogiston that leads to human combustion in nearly every case.

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