Johannesburg Centre, Astronomical Society of Southern Africa


The ATM demonstrations,
by Vincent Nettmann

"How did it go with the Amateur Telescope Making demo?" Well, it just didn’t stop the whole day! Visitors were amazed to see what "scrounged" bits and pieces go into a homemade telescope. (Thanks to Mike Fletcher for his under-construction telescope.)

"How do you get the curve on the mirror?" was the most frequently asked question.

We demonstrated the grinding technique on a 6-inch mirror, and then let our visitors have a hands-on go at it. "The answer to your question is, you are now making the curve yourself – that’s how!"

The next most frequently asked question was, "When can I start?"

Thanks to Peter Fyfe, Peter Fyfe Jnr., Scott Naughtin, Keith Lou, Trevor Troye, Dave Hughes and others for sharing their time and knowledge with our visitors.

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