The Hartree and Porter Meccano
differential analyzer built in 1934 at a cost of £20. It
achieved an accuracy of about 2%.
- 1: Output table
- 2: Integrator
- 3: Input table
- 4: Torque amplifier motor
- 5: Independent variable motor
- 6: Drive to output table
- 7: Drives to pencil holders
- 8: Bus shafts
A fourth integrator was
added to the machine after
this picture was taken. One of the integrators from this
machine is on display in the Science Museum in London.
|
Picture from Hartree (1935) |