Making the most out of our graphical telemetry computers.

Like with many complex instruments, there are multiple ways to solve certain problems and to measure the required inputs. Combining the various functions leads to a multitude of advanced uses.

Many uses of the Quadrant Telemeter are apparent after simple instructions, but some techniques require in-depth practice and special attention to detail.

In a significant update to our beloved Telemeter, we've utilized the reverse for the first time, adding ancient quadrant elements as well as an inclinometer. This means that the list of uses and use cases of the instrument has more than doubled.

By using the Telemeter string as a plumb line, we introduce three additional ways of sighting, plus we let you perform various trigonometric operations with a shadow square and a sexagesimal scale. As usual with our tools, there are hidden secrets, and more uses than meet the eye. We look forward to exploring all this with you in the pages that follow.

The greatly expanded manual therefore will be of interest to those who want to know what this instrument and the new, ancient features are all about, or those who have just bought a Quadrant Telemeter and want to start using it, as well as the experts who want to push the boundaries of what their Telemeter can do. Various additional reference materials have also been included to give you a Rosetta stone of trigonometry and a standalone resource for emergency or austere situations.

The official Wndsn Quadrant Telemeter manual. The cover design pays homage to medieval mathematical and astronomical books; the styling of the title as a "Grimoire" is a play on textbooks of magic with instructions on how to make spells, talismans, and the like, "Grimoire Quadrantis Telemetrum" -- Textbook of the magic of Quadrants and Telemeters. Finally; the author's name at the top; "Filiusventi" is a hint at the practice of Renaissance scientists to latinize their names; venti is wind, and filius the son.

The manual provides advanced tutorials on the following topics:

• Measuring the Depth of a Well
• Determining Local Latitude
• Finding Tangent
• Measuring from an Elevation
• Measuring an Elevated Object
• Finding Sine and Cosine
• Sun Sighting
• Using the Obliquity Arc
• Extending the Scales
• Measuring Latitude for Celestial Navigation
• Powers of 10 and Scale Jumps
• Measuring Angular Size
• Measuring Size Instead of Distance
• Resection: Triangulation, Trilateration, Triangulateration
• Resection Error Margins
• Small-Angle Calculations

Also, a section on metrology covers:

• Uncertainty
• Accuracy vs. Precision
• Accuracy Estimations
• Calibrating Device Resolution

172 pages, full color. 54 pictures, 16 tables. Perfect bound. 7.75" x 4.75" (19 x 12 cm)