Goniometer
-
An instrument for measuring angles, especially the angles ofcrystals, or the inclination of planes. Contact, or Hand, goniometer,a goniometer having two movable arms (ab, cd), between which (at ab)the faces of the crystals are placed. These arms turn about a fixedpoint, which is the center of the graduated circle or semicircle uponwhich the angle is read off.-- Reflecting goniometer, an instrument for measuring the angles ofcrystals by determining through what angular space the crystal mustbe turned so that two rays reflected from two surfaces successivelyshall have the same direction; -- called also Wollaston's goniometer,from the inventor.
Hello! It looks like you're interested in this conversation, but you don't have an account yet.
Getting fed up of having to scroll through the same posts each visit? When you register for an account, you'll always come back to exactly where you were before, and choose to be notified of new replies (either via email, or push notification). You'll also be able to save bookmarks and upvote posts to show your appreciation to other community members.
With your input, this post could be even better 💗
Register LoginExplore More Definitions
Browse our collection of 300,000+ community-written definitions