Appropriately enough, one of Sir J, J. Thomson's earliest experiments was the repetition of a measurement which strongly supported Maxwell's electro-magnetic theory, namely, the determination of ...

Others thought the rays were streams of particles. J.J. Thomson decided to find out for sure. Thomson was a physics professor at Cambridge University in the UK. He placed cathode tubes in electric ...

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Electrons are 1,800 times lighter than the lightest atom (something discovered by Thomson’s father J.J. Thomson) so they can more easily diffract through the lattice of a crystal. Atom ...