The Battery That's Lasted 176 Years

GUEST VIDEO! Go subscribe to Sally's channel:    / sallylepage  
In a laboratory at Oxford University sits the Oxford Electric Bell, which has spent 176 years constantly ringing. And no-one's quite sure what the battery that powers it is made of...

Add Sally on all the social networks:
Twitter:   / sallylepage  
Facebook:   / shedscience  
Instagram:   / sallylepage  
Website: http://sallylepage.co.uk
Snapchat: sally.lepage

Thanks to camera operator Mikayla Hunter:    / @oldschool8260  

And thanks to the University of Oxford's Physics Department for letting us film the bell!

References:
Croft (1984) The Oxford electric bell, Eur. J. Phys.
http://iopscience.iop.org/article/10....

Croft (1985) The Oxford dry pile, Clarendon Laboratory Historical Notes No. 3

The Clarendon Dry Pile, Department of Physics website
http://www.physics.ox.ac.uk/history.a...