Hello All,
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A bit of history for the weekend...
http://www.orau.org/ptp/collection/shoefittingfluor/shoe.htm
http://www.kryogenix.org/writings/questionsquestions.cas
http://en.wikipedia.org/wiki/Shoe-fitting_fluoroscope
The shoe fitting fluoroscope (called pedoscope in the UK) first appeared in US shoe stores in the 1920's, and by the 1950's approximately 10,000 units were in use across the USA, 3000 in the UK and 1000 in Canada. The units allowed the customer's feet to be viewed within the shoes, supposedly to ensure accurate fit. However, they were mostly regarded by sales staff as little better than a gimmick, and their popularity waned. Most US states banned the machines in the 1960's, and their use ceased in the UK by 1970.
The frightening thing was the amount of radiation used for each exposure. According to the show "Engineering Disasters" on History Channel, the exposure from a typical machine was 20 to 75 rems (or 200 to 750 mSv) per minute. That is to be compared with the current maximum allowed occupational exposure to workers in nuclear power stations in the USA of 5 rems (50 mSv) per year and 20 mSv (2 rems) per year for classified radiation workers in the UK. Whilst customers were unlikely to have been adversely affected by using the machines, countless shop staff are likely to have suffered the results of excessive exposure to radiation.
Scary stuff, but not as scary as what the Pumas are likely to do to Scotland on Sunday...:wacko:
Have a great weekend :drinks
Martin Nunn
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