Sir J.J. Thomson with early equipment in the Cavendish Laboratory, Cambridge.. Thomson, Joseph John, Sir (J. J. Thomson) English physicist. discovered electron. Nobel Prize in Physics 1906. president of Royal Society 1915-1920 _1856-1940 . .
This image is no longer for sale. It has previously been bought for a multiple re-use license which is still valid. You cannot download or purchase for any new licenses. By clicking OK, you are confirming that this image is only to be used for the rights in the existing license.