h a l f b a k e r yI think this would be a great thing to not do.
add, search, annotate, link, view, overview, recent, by name, random
news, help, about, links, report a problem
browse anonymously,
or get an account
and write.
register,
|
|
|
Please log in.
Before you can vote, you need to register.
Please log in or create an account.
|
A lot of quartz watches use little button batteries to power them. A lot of fancy watches use a rotor to harvest the energy of flailing human limbs.
This device has the form factor of a standard watch battery button cell. Most of the interior is used to house an eccentric rotor, which charges the
remaining stub of battery.
[link]
|
| |
funny, and with a piezoelectric ratchet and pawl |
|
| |
In principle OK, but a radiothermal or Beta-capture cell would be way cooler* . |
|
| |
*In a metaphorical sense. Obviously, radiothermal batteries get quite warm in normal operation. |
|
| |
This could actually work. The available power would be
(very roughly) dependent on the square of the diameter of
the rotor - so maybe 1/20th that available from a
conventional full-diameter rotor, but that's plenty for a
quartz. |
|
| |