I hadn't noticed that. And it's from Harvard too!
Roger
Roger Eichhorn
eichhorn@xxxxxx
On 23 Feb 2006, at 08:16, Andrew Davidhazy wrote:
Interesting reference page. Incorrectly spelled URL leads to
correctly spelled webpage! - andy
Roger Eichhorn wrote:
I presume you've already run a check using Google for "schlieren
optics." the first reference of 44,000 is http://
www.fas.harvard.edu/ ~scdiroff/lds/LightOptics/SchleirenOptics/
SchleirenOptics.html. Others offer to sell you the components,
or even a complete system.
Roger