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Careers with maths
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From satellites to the London Olympics, all in one career

A favourite from the archive...
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Finding the area of a circle really is a piece of cake.

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September 2008
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equation of state

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Using their X-ray vision, astronomers have for the first time found two black holes in the same galaxy, and taken a peek inside a neutron star.

Tags: black hole : binary star : neutron star : equation of state : gravitational redshift