William Henry Bragg (1862-1942)

William Henry Bragg was a physicist, chemist, mathematician, and active sportsman who shared a Nobel Prize with his son Lawrence

William Lawrence Bragg (1890-1971)

William Lawrence Bragg was a physicist and X-ray crystallographic, known for discovering Bragg's law of X-ray diffraction.

CHRISTMAS LECTURES Physics

The cosmic onion – A is for atoms (1993)

In his first Lecture, Frank Close takes a look at the electromagnetic spectrum beyond the rainbow, from infrared to ultraviolet

CHRISTMAS LECTURES Physics

The planets – Planetary systems beyond our sun (1977)

Carl Sagan asks, do other solar systems exist?

CHRISTMAS LECTURES Physics

The planets – Mars after Viking (1977)

Carl Sagan asks, is there life on Mars?

CHRISTMAS LECTURES Physics

The planets – Mars before Viking (1977)

Carl Sagan views Mars through the eyes of Mariner 9.

CHRISTMAS LECTURES

The planets – The history of Mars (1977)

Carl Sagan explores how humans have studied the red planet.

CHRISTMAS LECTURES Physics

The planets – The outer solar system and life (1977)

Carl Sagan asks whether the origin of life is a cosmic commonplace.

CHRISTMAS LECTURES Physics

The planets – The Earth as a planet (1977)

Carl Sagan explores our place in the solar system.

CHRISTMAS LECTURES Maths Physics

Gulliver's travels – The world of captain Gulliver (1968)

In his first CHRISTMAS LECTURE from 1968, Philip Morrison looks at the arithmetic of large and small numbers, the geometry of