Listen to the full series on BBC Sounds. Hans Geiger and Ernest Marsden tested the plum pudding model. They aimed beams of positively-charged particles at very thin gold foil. These particles ...

Hans Geiger. Dr. Bothe gives an informed and comprehensive account of the work on the passage of No. 3046, VOL. 121] electrons through matter, their velocity and ionising power, their absorption ...

Listen to the full series on BBC Sounds. Hans Geiger and Ernest Marsden tested the plum pudding model. They aimed beams of positively-charged particles at very thin gold foil. These particles ...