Triple Beam balance
Descriptions
If you would like to measure the mass of an object using a triple beam balance, you first have to adjust the balance so it will point at the number zero. Then you place the object on the pan. Afterwards, you adjust the sliding weights called riders on the three beams, so the pointer will once again, point at zero. Once the Triple Beam Balance is balanced, you look at the riders and see what numbers they are on. That is the mass.
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