# Using blood for power

**URL:** <https://boards.straightdope.com/t/using-blood-for-power/680771>\
**Category:** Factual Questions\
**Created:** [February 7, 2014, 5:45pm UTC](https://boards.straightdope.com/t/using-blood-for-power/680771 "2014-02-07T17:45:39Z")\
**Posts on this page:** 2\
**Page:** 2

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**Author:** ![kopek](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/kopek/32/337_2.png) [@kopek](https://boards.straightdope.com/u/kopek)\
**Post date:** [February 10, 2014, 4:07pm UTC](https://boards.straightdope.com/t/using-blood-for-power/680771/21 "2014-02-10T16:07:51Z")

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> [@Hypno-Toad](#):
>
> What else am I missing?

That time traveling hippies are in short supply?

(Oh c’mon ------ someone else has got to remember _Idaho Transfer_)

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**Author:** ![Sailboat](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sailboat/32/461_2.png) [@Sailboat](https://boards.straightdope.com/u/Sailboat)\
**Post date:** [February 10, 2014, 4:45pm UTC](https://boards.straightdope.com/t/using-blood-for-power/680771/22 "2014-02-10T16:45:41Z")

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There are self-winding wristwatches that store mechanical power from your movements. Would it be possible to have an arm powered by generators run by your other functioning muscles (like your legs and/or other arm?)

Yes, the other limbs would have to work harder than you’re used to, in order to run the generator, but maybe it wouldn’t be prohibitive?

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