Let there be light: the story of light from atoms to galaxies

Introducing light

Light as a ray : reflection

Light as a ray : refraction

Light from afar : astronomy

Light from the past : astrophysics

Introducing waves

Sound waves

Light as a wave

Making images

There was electricity, there was magnetism, and then there was light ...

'Atoms of light' : the birth of quantum theory

The development of quantum mechanics

Atoms of light acting as particles

Atoms of light behaving as waves

Relativity part 1 : how it began

Relativity part 2 : verifiable predictions

The road to 'heavy light'.