The Seven Wonders of the Milky Way

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http://www.youtube.com/watch?v=H2jPHp1FkcQ The Seven Wonders of the Milky Way are: The Sagittarius stream, a long, complex, structure made of stars that wrap in polar orbit around the Galaxy. It consists of tidally stripped stars from...

Boiling water with ice

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Thermodynamics is a funny area of physics, where different physical quantities are profoundly connected. In this video we look at how reducing the pressure allows you to reduce the...

Cecilia Payne-Gaposchkin: the woman who discovered what the Universe is made of.

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In this vlog, I talk about Prof. Payne-Gaposchkin, one the most important astronomers of the 20th Century. Thanks to her we know that stars are not made by the same elements as the Earth, and that Hydrogen is the most abundant element in the Universe.