| Rutherford scattering
The scattering undergone by a stream of heavy charged particles, generally alpha particles fired at a sample of a heavy metal, caused by exposure to coulomb forces exerted by the atomic nuclei of the sample. The patterns produced by such scattering off an extremely thin sheet of gold were early evidence that atoms contain a tiny, positively charged core, what is now called the atomic nucleus. |
| an extraordinary or unusual thing, person, or event; an exceptional example or instance. |
| a children's mummer's parade, as on the Fourth of July, with prizes for the best costumes. |