History of light

Question 1

histories of light

Answer 1

400BC - emission theory of vision
300BC - First writings of reflection and refraction
160AD - Ptolemy and refraction
984 - Ibn Sahl and refraction
1024 - Intromissionist theory
1250 - Roger Bacon and reflection
1604 - How the eye focuses light
1615 - Snell’s Law
1668 - corpuscular theory explained
1672 - colours explained
1678 - wave theory
1860 – Electromagnetic field
1899 - Planck’s Theory
1905 - interpretation of the photoelectric field
1922 - First 3D Movie
1925 - First Television
1960 - First working laser
2010 - 3D Televisions

Question 2

Greek philosopher and mathematician ______ develops the __________ – we see because our eyes emit straight vision beams.

Answer 2

Plato, 400BCEmission theory of vision

Question 3

Greek mathematician ______ writes Optica. He asserts that light travels in straight lines and
proposes mathematical formulae for reflection and refraction.

Answer 3

Euclid, 300BC - first writings of reflection and refraction

Question 4

Roman astronomer ________writes about the refraction of light and further develops the emission theory of vision – objects are seen by rays of light emanating from the eyes.

Answer 4

Ptolemy, 160AD - Ptolemy and refraction

Question 5

Persian scientist ________ writes On burning mirrors and lenses, which sets out his understanding of how curved mirrors and lenses bend and focus light. He discovers a law of refraction mathematically equivalent to Snell’s law (1615).

Answer 5

Ibn sahl, 948 - Ibn Sahl and refraction

Question 6

Arab scientist ____________ contends that vision occurs because of rays entering the eye He also contends that magnification is due to refraction, and he makes
the link between glass curvature an magnification.

Answer 6

Ibn al-Haytham, 1021 -Intromissionist theory