Small frame containing two kinds of spider's thread

maker:
James Prescott Joule

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Science Museum Group
© The Board of Trustees of the Science Museum

Small frame containing two kinds of spider's thread, as used in Joule's dip circle

Details

Category:
Terrestrial Magnetism
Object Number:
1876-859
credit:
Dr. James Prescott Joule.