Niels Bohr adapted Ernest Rutherford's nuclear model. Bohr did calculations that led him to suggest that electrons orbit the nucleus in shells. The shells are at certain distances from the nucleus.

Here, series producer Paul Sen explains why the realisation that everything we see in the Universe is made of atoms could be the most important discovery ever. No-one ever expected the atom to be as ...

Crypto exchanges provide developers with APIs to connect with their trading engine and data feeds. The APIs cover a dozen ...