> My father told me he once read a book that said it was impossible to go to the Moon because it would take 750 years to get there. A bit of a tangent, but tha

> My father told me he once read a book that said it was impossible to go to the Moon because it would take 750 years to get there. A bit of a tangent, but that seems absurd even based on knowledge from hundreds of years ago. The moon is about 250,000 miles away, so the 750 years figure assumes a speed of less than 1 mile/day. And a quick google search suggests that we've had reasonable estimates of the distance to the moon since about the 2nd century BCE.