Sirous Nekooei has uploaded a couple of videos. One is a race between 9 calculators performing automatic multiplication and division. The other is a short description on the basics of mechanical calculators.
via oldcalculatorforum
Sirous Nekooei has uploaded a couple of videos. One is a race between 9 calculators performing automatic multiplication and division. The other is a short description on the basics of mechanical calculators.
via oldcalculatorforum
The actual race is about 15 min into the video – and there are some beautiful shots of the working mechanisms.