[Carey Carlan]

garyvee wrote in news:22146ae1-219a-4db8-aea8-
:

On May 26, 6:28*am, Carey Carlan wrote:
I was running wild sound for a video recently and the audio ran long by
about half a second over 70 minutes. *That hasn't happened before. *W
e were
shooting in an outdoor pavilion with temperatures in the 90s. *Can heat
affect the speed of a quartz crystal?

I know this isn't an answer to your question but I highly recommend
the book "Latitude" by Dava Sobel. It's a great historical account
about the quest for a simple and practical method to determine a
ship's latitude in the 18th century. The primary focus is on clocks
designed by John Harrison to determine latitude at sea. Solving the
temperature problem was part of his solution.

I'll look for it in the library. Saw a PBS special (Nova?) on that years
ago and was totally unimpressed with Harrison's design. He kept putting
patches on top of other patches rather than refining the original concept.
If I wrote software like that (a) it wouldn't fit, (b) I couldn't maintain
it and (c) it would be slow as Christmas.