Recent content by Horndog

Does anyone have any good related material for changing perspective?

To test for hydrogen gase you undertake the pop test with a match and a test tube - lighting the H in a test tube should make a pop noise!

photo voltaic/electric The photoelectric effect is the effect of an electric being displaced be a photon of a particular frequency, there is no photovoltaic effect - you are thinking of a photovoltaic cell which utilyses the photelectric effect to convert light energy to electrical energy, Eg a...