We have been talking about OpTest's OpTiSurf for a long time, but I wanted to bring you back to the full line of OpTest's instruments. Optical measurement is their expertise, and they have more clever optically driven instruments than anyone else. I suggest you look at them today--just click on "More" below. And when you talk to OpTest, please say hello for us here at Nip Impressions.
Riddles by Travis:
How does Cesium-133 help define the distance of a meter?