[3] The first episode shows how the desire, by Greek, Arab and Christian scholars to penetrate the divine nature of light led to modern science's origins.

Euclid's Optics expanded this idea to make an important breakthrough: We know in our minds that a faraway building is bigger, yet it is possible to position a finger such that our eye tells us they are of similar size.

[4] In the centuries following Al Hazen's death, the Catholic Church determined to demonstrate its Divine authority and produce a "Christian" knowledge of light.

[3] The subject is examined through the work of Tycho Brahe; Galileo; Vermeer; Robert Hooke; William Herschel; Ole Rømer; Charles Darwin and Ernest Rutherford.

Tycho's measurements proved it was further away than supposed thus challenging the Church's traditional view that God had created the Earth at the centre of the Universe.

[5][6] The third episode charts the discovery of the true nature of light and the subsequent development of modern technology such as electricity and mobile phones.

[3] The pioneers are credited as James Clerk Maxwell; Joseph Swan William Armstrong; Thomas Edison; Wilhelm Röntgen; J. J. Thomson; and Max Planck.