In-person and via Zoom
Ask for the Zoom link from paulwaav@together.net or theresamarie11@GMAIL.COM
VAS Members will be emailed the Zoom link

The in-person will be at the Brownell Library on 2A near 5-Corners in Essex Junction.

If you attend via Zoom please get on-line before 7:30.  If you don’t have Zoom installed, the application will automatically download and install when you click the meeting link.  This may take a couple minutes.

PRESENTATION:

A Gentle Introduction To Mirror Making

By Bob Horton

In this talk we will explore the tools, techniques and tests that have evolved over the years to produce a telescope mirror (or lens) whose surface is thousands of times smoother and more accurate than the best machinist’s work, all the while using simple and inexpensive devices and procedures that even a caveman can handle. We will start with a short history of the art of mirror making and the role our own state of Vermont played in that timeline. This is followed by a description of the ten basic steps a mirror maker will take to transform a raw disk of glass into an optically perfect mirror that will reside the heart of their telescope. For each step, we will describe the procedure to get to the desired result and a set of simple tests that prove that you have completed that task. In the end, you will know how thousands of folks have crafted their own telescopes using the most basic tools to produce research quality optics.

Following the main presentation, our recurring monthly presentations will include Constellation of the Month  by Terri Zittritsch.