exhibit was constructed by the Center
for History of Physics with support from the American
Institute of Physics and the
Friends of the Center.
||Norriss S. Hetherington
W. Patrick McCray
||Spencer R. Weart
for images marked "copyright uncertain" is unknown,
but assumed to be in the public domain because of the age
of the image. If you believe that you own the rights to
any of the images we use, please contact us and we will
either withdraw that picture or add an acknowledgement.
We are grateful to David DeVorkin, Owen Gingerich,
Michael Hoskin and Robert W. Smith for their detailed criticism
reading and links