A unit used to provide an everyday measure of radiation dose. A single banana produces an ionising radiation dose of around 0...

Stories from Physics 11-14 14-16

Early Planck Max Planck was a German theoretical physicist and a leading figure in the early development of quantum theory...

Stories from Physics 11-14 14-16 16-19

Erwin Schrödinger was an Austrian physicist who made several significant contributions to the development of quantum theory.

Stories from Physics 11-14 14-16 16-19

Heinrich Hertz made perhaps the earliest recorded observation of the photoelectric effect in 1887, during his experiments on...

Stories from Physics 11-14 14-16 16-19

Philipp Lenard had been an assistant of Hertz and built on his work on the photoelectric effect. He discovered that the total...

Stories from Physics 11-14 14-16 16-19

Many colleagues in the physics community expressed scepticism towards Einstein’s notion of the photon when he first proposed...

Stories from Physics 11-14 14-16 16-19

It is often reported that Robert Millikan’s 1915 photoelectric experiment verified Einstein’s hypothesis about light quanta...

Stories from Physics 11-14 14-16 16-19

Millikan’s experiment did not lead to the rapid acceptance of Einstein’s ideas. His light quantum model was widely treated...

Stories from Physics 11-14 14-16 16-19

Niels Bohr was a Danish physicist who contributed to foundational research into atomic structure and the development of...

Stories from Physics 11-14 14-16 16-19

In 1972, Apollo 17 astronauts in orbit around the Moon observed an unexpected phenomenon — what they described as bands...

Stories from Physics 11-14 14-16 16-19

•In his 1905 photoelectric paper, Einstein did not use the term photon, but referred to a ‘light quantum’. The word photon was...

Stories from Physics 11-14 14-16 16-19

Werner Heisenberg was a German physicist who proposed an important novel conceptualisation of quantum theory. Born in 1905, he...

Stories from Physics 11-14 14-16 16-19