MadSci Network: Engineering

Subject: how does kinetic powered watches work?

Date: Wed Oct 18 01:47:47 2000
Posted by Howard Sobers, Jr.
Grade level: undergrad School: City College of New York
City: Far Rockaway State/Province: NY Country: US
Area of science: Engineering
ID: 971848067.Eg

I have a friend who's watch doesn't use batteries. It is powered by the 
movement of his hand. I would like to know the physics behind this. I read 
somewhere that the movement of the hand causes and oscillating weight, 
which causes the rotor to rotate. And that generates electricity. But that 
doesn't mean anything to me. Can anyone help me? I am not talking about 
self-winding watches. They are different. 

Re: how does kinetic powered watches work?

Current Queue | Current Queue for Engineering | Engineering archives

Try the links in the MadSci Library for more information on Engineering.

MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci

MadSci Network,
© 1995-2000. All rights reserved.