Where is the line between “a pulley and a platform” and “an elevator”? | Hacker News

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		jagged-chisel 6 months ago \| parent \| context \| favorite \| on: Wind turbine blade transportation challenges Where is the line between “a pulley and a platform” and “an elevator”?

vishnugupta 6 months ago [–]

I guess it’s the ability to arrest a sudden drop.

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