steelyard
Unequal-arm balance
A steelyard is a type of balance scale with unequal arms—a short arm holds the object being weighed while a counterweight slides along a longer graduated arm until balance is achieved.
The position of the counterweight indicates the weight.
Ancient and still used in some markets, it requires only one standard weight to measure a range of masses.
Balancing opposing force
- massQuantity of matter
- poundWeight, strike, or kennel
- ounceOne-sixteenth of a pound
- kilogramBase unit of mass
heaviness · load · heft · tonnage · measure · standard · stone · dram
Lever's balance point
- counterweightBalancing mass in machinery
- leverPivoting bar for lifting
- beamStructural support member
- armUpper body limb
poise · hook · suspension · graduated · trunnion · pivot · equilibrium · calibration
One who sells wares
- marketVenue for trade
- bazaarOpen-air merchant district
- weighingMeasuring mass or heft
- goodsThings for sale
commodities · bulk · commerce · barter · marketplace · transaction · wholesale · vendor
Very old indeed
- RomeItaly's capital city
- RomanOf ancient Italy's capital
- medievalOf the Middle Ages
- RenaissanceEuropean cultural reawakening
antiquity · artifact · bronze · Pompeii · archaeological · museum · historical · traditional
counterpoise
Balancing opposing force
kilogram · heaviness · load · heft · tonnage · measure · standard · stone · dram · avoirdupois
fulcrum
Lever's balance point
- counterweightBalancing mass in machinery
- leverPivoting bar for lifting
- beamStructural support member
arm · poise · hook · suspension · graduated · trunnion · pivot · equilibrium · calibration · notches
merchant
One who sells wares
goods · commodities · bulk · commerce · barter · marketplace · transaction · wholesale · vendor · scales
ancient
Very old indeed
Renaissance · antiquity · artifact · bronze · Pompeii · archaeological · museum · historical · traditional · Nuremberg
- scalesweight, measure, balance, balance scale, digital scale
- balance scalesbalance scale, pan, beam, fulcrum, pointer
steelyardbeam balance
Lever-based weighing device
pan balance · spring scale · digital scale · electronic scale · smart scale
yard, steel, steely, steeling, steelworks, steelworker, steelhead, steelwork, steelworkers