Artificial intelligent assistant

walking-wheel

ˈwalking-wheel
  [walking vbl. n.1 and ppl. a.]
  a. = pedometer. b. (See quot. 1744.)

1706 Phillips (ed. Kersey), Perambulator, a walking-wheel, a rolling Wheel made of Wood or Iron, with a Movement, a Face divided like a Clock and Indexes, to shew how many Yards, Poles, Furlongs and Miles one goes in driving it before him. 1744 Desaguliers Course Exper. Philos. II. 417 Then the Wheel being also a walking Wheel, the same Men get into it, in which case they have Power sufficient to raise the small Goods 5 or 6 times faster than the heaviest. 1875 Knight Dict. Mech., Walking-wheel, a pedometer.

Oxford English Dictionary

yu7NTAkq2jTfdvEzudIdQgChiKuccveC 445ba77da541635faad13261fa26e667