The Thales model A calculator скачать в хорошем качестве

The Thales model A calculator

The Thales A is a mechanical calculator based on the classic Odhner pinwheel design. The model was first made in 1911, and this particular one was probably made two or three years later. In another video I show the internal mechanism of the Thales A:    • The mechanism of the Thales A pinwheel cal...   There is also a video of the Thales KA, a small adding machine based on a completely different mechanism:    • Thales KA adding machine   For more information on this calculator and others in my collection, please visit my website: https://www.jaapsch.net/mechcalc/ 0:00 Introduction 0:50 Addition 1:18 Multiplication 2:07 Clearing 2:40 Subtraction 2:58 Latch 4:24 Revolution counter 4:58 History 6:15 Outro