Physicist Jim Al-Khalili describes how Albert Einstein identified quarks as a solution to the photoelectric effect.
Scientists explain the difference between regular and irregular moons, the effect of gravity on a moon's orbit, secular acceleration and Phobos' death spiral towards Mars.
Black body radiation, photoelectric effect, ultraviolet catastrophe
Brian Cox demonstrates the use of Isaac Newton's laws of motion and universal gravitation to calculate the reentry of the Soyuz spaceship and landing in Kazakhstan.
The Kepler telescope could lead to perhaps the greatest scientific discovery in history - another hospitable planet within reach of humans.
A card game shows how John Bell settled Albert Einstein and Niels Bohr's debate over whether reality was knowable.
Supporting the Australian Curriculum
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