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Tag archives: university of Bristol

In the footsteps of Cecil Powell

Pion pioneer: a bust of Cecil Powell

Pionic man: a bust of Cecil Powell. (Courtesy: University of Bristol Special Collections)

By  Matin Durrani

I spent yesterday at the University of Bristol, where a meeting was held to celebrate the 70th anniversary of the discovery of the pion in 1947.

The particle was spotted by Cecil Powell, who joined the university’s physics department in 1928 and went on to win the 1950 Nobel Prize for Physics for his efforts.

At the time, the pion was thought to be the carrier of the strong nuclear force, which binds protons and neutrons in the nucleus, though we now know it is one of a family of strongly interacting mesons.

As we heard yesterday from introductory speaker Brian Pollard, Powell found evidence for the pion using a series of ingenious (and literally breathtaking) experiments that involved him taking specially manufactured photographic plates to high altitudes up the Pic-du-Midi mountain in the Pyrenees.


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Exploring Bristol’s physics heritage

Sir John Enderby and Felix James

Meeting of minds: Sir John Enderby (right) was Felix James’ perfect physics tour guide.  (Courtesy: Felix James)

By Felix James, a student on a work-experience placement with IOP Publishing

If you live in the UK, you are probably aware that at this time of year many school students are asked to do some kind of work experience. Teenagers like me find a placement we are interested in and then go there for a week – rather than school – to get a taste for what work is really like. For me this meant a week at IOP Publishing, which publishes Physics World, but it included an excellent tour of the physics department at the nearby University of Bristol.


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