This germanium had an excess of electrons, but when an electric signal traveled in through the gold foil, it injected holes (the opposite of electrons) into the surface. This created a thin layer ...

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 ...

Nude and Gold Foil – A nude base with delicate gold foil ... Tiny Dots – Small dots near the cuticle or as a French tip alternative. Thin Metallic Stripes – Add thin gold or silver stripes ...