That makes sense; it's easier to take a horizontal step than a vertical one. Som... | Hacker News

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saraid216 on May 22, 2012 | parent | context | favorite | on: SpaceX Falcon 9/Dragon Launch Webcast (starts at 1...

That makes sense; it's easier to take a horizontal step than a vertical one. Someone should do up an infographic showing the effect of gravity on work required for horizontal versus vertical movement.

I think it's logarithmic, but my math is bad.

stcredzero on May 22, 2012 | [–]

http://news.ycombinator.com/item?id=4010640

The problem is the rocket equation. Yes, there's a natural log in there, but working against our favor.

lmm on May 22, 2012 | [–]

The work required to move horizontally is zero (ignoring friction)

saraid216 on May 22, 2012 | [–]

I was under the impression that we walk primarily by applying friction?

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