Pascaline calculating machine by Blaise Pascal, before Staatliche Kunstsammlungen Dresden, most probably the machine gifted by Pascal to Marie Louise Gonzaga in 1647
Replica, made in 1974, of a Roman hand abacus. The counters slide in grooves. Like the Japanese abacus the counters above the bar are worth five and those below are worth one. The columns are worth from one million on the left to a twelfth in the second to right. The right-hand column is sub-divided to read twelths of twelths.
Vernier Readout Sextant with Case
Portable Terminal from Digi-Log Systems Inc 1976
Equations, the Game of Creative Mathematics
Foto zeigt scheußliches Mischwesen
scientists from the RAND Corp show off the future of a home computer - this is what it will look like in the FORTRAN language ill be easy to use.
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