The ratio of the force exerted by a machine to the force applied to it.
Roget 633:
machinery,
mechanism,
engineering.
instrument,
organ,
tool,
implement,
utensil,
machine,
engine,
lathe,
gin,
mill;
air engine,
caloric engine,
heat engine.
gear;
tackle,
tackling,
rig,
rigging,
apparatus,
appliances;
plant,
materiel;
harness,
trappings,
fittings,
accouterments;
barde†;
equipment,
equipmentage†;
appointments,
furniture,
upholstery;
chattels;
paraphernalia
etc.
(belongings)
780.
mechanical powers;
lever,
leverage;
mechanical advantage;
crow,
crowbar;
handspike†,
gavelock†,
jemmy†,
jimmy,
arm,
limb,
wing;
oar,
paddle;
pulley;
wheel and axle;
wheelwork,
clockwork;
wheels within wheels;
pinion,
crank,
winch;
cam;
pedal;
capstan
etc.
(lift)
307;
wheel
etc.
(rotation)
312;
inclined plane;
wedge;
screw;
spring,
mainspring;
can hook,
glut,
heald†,
heddle†,
jenny,
parbuckle†,
sprag†,
water wheel.
handle,
hilt,
haft,
shaft,
heft,
shank,
blade,
trigger,
tiller,
helm,
treadle,
key;
turnscrew,
screwdriver;
knocker.
hammer
etc.
(impulse)
276;
edge tool
etc.
(cut)
253;
borer
etc.
262;
vice,
teeth,
etc.
(hold)
781;
nail,
rope
etc.
(join)
45;
peg
etc.
(hang)
214;
support
etc.
215;
spoon
etc.
(vehicle)
272;
arms
etc.
727;
oar
etc.
(navigation)
267;
cardiograph,
recapper†,
snowplow,
tenpenny†,
votograph†.
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