Loading ...
Sorry, an error occurred while loading the content.
  • Back
  • About Group

  • Join Group
1 member, 16 messages, 3 photos added in the last 7 days
New MessagesSee All
  • 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
Fetching Sponsored Content...

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:


To subscribe, send an email to:


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

Group Settings

  • This is a restricted group.
  • Attachments are not permitted.
  • Members cannot hide email address.
  • Listed in Yahoo Groups directory.
  • Membership requires approval.
  • Messages require approval.
  • All members can post messages.

Message History