For more than a quarter of a century Scotty delivered the annual Shadowgram
, a twilight talk at Stellafane, during which he'd discuss, among other things, the changing state of telescope making.
Students will learn to make various types of hologram starting with single beam denisyuk and progressing onto shadowgrams
, master transfer rainbow transmission holograms and then working with the pulse laser.
Cox, who edited this magazine's Gleanings for ATM's department; and the young, pipe-smoking Walter Scott Houston, whose evening talks, called Shadowgrams
, reminisced about Stellafane's history.