Yp Vernier

YP Vernier is an educational program showing how to use a vernier scale to measure length with great precision. YP Vernier simulates a vernier caliper on the screen. Using a scroll bar, the user moves the movable jaw, and the corresponding numerical value is displayed on the screen. The program can also be used in "quiz mode": the movable jaw is placed at a random position, and the user try to find the corresponding measure. New in this version: This new version provides two additional ways to slide the movable jaw: in addition to the scroll bar, you can now use the arrow keys of the keyboard, or grab the caliper with the mouse pointer. System Requirements: MacOS 7, 8 or 9.