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1 member, 16 messages, 3 photos added in the last 7 days
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  • Pilot Balloon Slide Rule

    Dear All: For those of you who are interested in Pilot Balloon Slide Rules, I have an unusual Mark I rule for auction on Ebay. The item number is 271840111129.

    dondigalbo 5 hours ago
  • Re: Benford's Law

    Thanks Jerry. The articile in the JOS has a descrptive nature, of course.To understand the mathematics of Benford's Law one best can read the articles by Hill

    21 hours ago
  • Re: Benford's Law

    Along a logarithmic scale, the statistically most frequent numbers (starting with 1 or 2) are read more accurately than the numbers starting with 7, 8 or 9.

    gpascalauguste 21 hours ago
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Group Description


The International Slide Rule Group "ISRG" is devoted to collectors of slide rules and associated mechanical calculating instruments.





You may contact the listowner at:


sliderule-owner@yahoogroups.com



To subscribe, send an email to:


sliderule-subscribe@yahoogroups.com.




If you are serious about slide rule collecting, it is highly recommended that you consider joining

The Oughtred Society.



















Brought to you by:




Cyril Catt  - 
Andrew Davie  - 
Gary Flom  - 
Craig Kielhofer  - 
Jerome Mc Kenna



Slide rules are THE ORIGINAL solar powered calculators. Try using one in the dark and you'll see I'm right, or not see as the case may be.

This is your groupowners attempt at humor.


Group Information

  • 1556
  • Mathematics
  • Dec 21, 1998
  • English

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