Century of Endeavour

Back-up Pictures

(c) Roy Johnston 2009

I am making available some selected photos which may be of interest in the context of this work, for hotlinking from appropriate locations. RJ 12/08/2009

Some Pic du Midi Scientific Technology

I may get around to adding some notes on this equipment, which was part of the 'automated production system' for getting high-energy particle interaction records out of recorded cosmic-ray collision events.


RJ with Gegene Boulanger

RJ handled the electronic and Gegene Boulanger handled the mechanical aspects of the cloud-chamber system. This photo was taken at the half-way stop of the telepherique, on the way up to the Pic, which can be seen in the background.


first pic

Gegene working at the cloud-chamber.


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Sequence control system for operating the cloud-chamber recovery process.


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altenative version of the above..


second pic

Bank of capacitors constituting the power source for the flash photography of the cloud chamber.


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Smaller version of the above.


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The telecsope in the Pic du Midi observatory.


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Copyright Dr Roy Johnston 2003