In 1911 Charles Thomson Rees Wilson of Cambridge University invented a "cloud chamber" in which tracks made by sub-atomic particles could be seen. At about the same time Hans Geiger, now of the University of Tubingen, invented a cylindrical "counter" which crackles every time a particle enters it. Physicists use both devices, alone or together, to record the presence of and identify cosmic rays, gamma rays, X-rays, photons, electrons, protons, positrons, neutrons.
There is still plenty to be learned about all these forces, but that did not prevent Drs. Jabez Curry Street & Edward...
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