Slide Rule Info
Slide Rule Fun
About the OS
About the Oughtred Society
Design and Standards
The goal for these Web pages is to conform to major
standards that facilitate both maintenance and usability.
For maintenance the Web pages are coded using XHTML 1.0
standards, using Cascading Style Sheets (CSS), and
Server Side Includes (SSI).
For usability we aim at
Priority 1 of the
Web Content Accessibility Guidelines.
as checked by
Our reach may exceed our grasp!
Photo credits or sources are listed by Web page, then by order of images on the page, in a condensed format.
- Charpentier in header: Clark McCoy.
- Table with circular rules: Jim Cerny
- Table with mix of rules and docs: Jim Cerny
- Reference Manual cover: Robert Koppany
- William Oughtred: unknown.
- Thacher: Jim Cerny
- Golden Gate Bridge: Tim Tiebout
- Apollo 11 LEM: NASA
- Credits at bottom of that page.
- Nystrom calculator: Patent 7961.
We use the
information collected by the server provider (ISP)
for efficient management of
the site and this does not include
any personally identifiable information.
Common ways that information is collected include:
The raw Web server logs record the
following information, which we aggregate into
monthly usage reports for site management:
- URL from which file request was received.
- date and time stamp.
- URL requested.
- file sent.
A Web cookie is text information that a
Web page can instruct your browser
to write to your browser's cookie file.
patterns on their site on a page by page
We are not using cookies.
Tracking of Website Activity
Courtesy of extremetracking.com
Monthly Usage Log Reports
Monthly reports are run to help manage the Web site,
primarily to confirm usage patterns, identify trends,
and spot anomalies. Password access is required
because it is very easy for those unfamiliar with the
terminology and nature of server operations to
misinterpret the results.
Host Website Statistics