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Make: Technology on Your Time Volume 09
book

Make: Technology on Your Time Volume 09

by Mark Frauenfelder
February 2007
Intermediate to advanced
190 pages
7h 51m
English
Make: Community
Content preview from Make: Technology on Your Time Volume 09

Citizen Scientist

BUILD A CLOUD CHAMBER

CATCH THE GHOSTLY TRACKS OF COSMIC RAYS USING DRY ICE, ALCOHOL, AND A BASKETBALL DISPLAY CASE.

By Dr. Shawn

HOLD OUT YOUR PALM FACE UP. IN THE time it takes you to read this sentence, two high-energy subatomic particles will likely have pierced clean through your hand.

We live in a radioactive environment and there’s no escape. At sea level, the flux is roughly one particle per palm size per second, which means San Franciscans sustain an astonishing 20 million hits through their bodies each day. Denver is higher in elevation, so its protective blanket of air overhead is thinner. As a result, Mile Highers get hit at roughly twice that rate.

These particles make their presence felt by ionization — that is, ...

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Publisher Resources

ISBN: 9781680456080Errata Page