mechanical aid

See: device
Mentioned in ?
References in classic literature ?
We must learn to reawaken and keep ourselves awake, not by mechanical aids, but by an infinite expectation of the dawn, which does not forsake us in our soundest sleep.
Expounding on David Hockney's proposition that the seventeenth-century Dutch wizard used the mechanical aid of something like a camera obscura to make his paintings, lenison creates a system of mirrors and lenses that could have been used in the 1600s to produce optically implausible works.
And Glenn takes on a major support role for the third year running - keeping the riders going by helping with food stops, mechanical aid and general assistance.
That was a cheeky reference to the jokes made recently that his Red Bull was somehow being assisted by some form of mechanical aid, given his crushing dominance during the race in Singapore last month as he won his third consecutive race.
6km), each day, "under one's own body power (without the utilisation of any type of health or mechanical aid other than prosthetic devices)", without crutches, canes, banisters, or in swimming pools.
after all only the opposable thumb a mechanical aid to those who write
I didn't feel quite as glamorous as Penelope Pitstop and Peter Perfect was nowhere in sight to offer free mechanical aid, so I resorted to muttering under my breath.
The 17-handicapper managed, without any mechanical aid, four full rounds in four countries in just one day.
Varioptic's liquid lenses act similarly to the human eye, changing shape automatically without mechanical aid, by using electricity to focus the lens by altering the border between two drops of liquid.
When Dinh added some ordinary Teflon tape to a solution as a mechanical aid for removing the precipitant--much as peanut shells on a bar floor catch debris when the bartender sweeps up--he was startled to observe that the catalyst had coated the tape.
If it stays in place like it is glued to the floor, then the employee should get help or use a mechanical aid to lift the object safely.
From what I understand, you have found a way of changing images and text on a sign without electrical or mechanical aid and therefore without any operating costs.

Full browser ?