What is escape velocity?

25 February 2013

Question

Hello naked scientists, I love your show. My name is David, I'm from Vancouver Canada

What does escape velocity refer to exactly. It seems that if I have a tall enough ladder, i could climb up at any velocity and escape earths gravitation field, kind of like the space elevator concept. I would never need to reach that escape velocity. please clarify.

thanks naked scientists, keep up the great work

DAVE

Answer

We put this question to Andrew Pontzen...

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