Inverse-square law - The magnitude of a force is proportional to the inverse square of the distance.
Inverse gamblers fallacy - It says that if something improbable happens now, probable events must have happened in the past or the future. This is false.
... vaginal opening.
In the human male, the urethra is about 8 inches (200 mm) long and opens at the end of the penis.
Medical problems of the urethra:
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