This ingenious Gravity Ruler by Unit Lab shows the relationship between mass and length. The ruler measures both mass in grams and length in centimetres.
How it works
In order to weigh an object, the ruler needs to be brought into balance. Start by placing an object on top of the hole at the end of the ruler. Bring the ruler into balance by moving it back and forth on the edge of the table. You can find the weight of the object at the pivot point.
Product Info
Stainless Version:
The Gravity Ruler is made from stainless steel. It is 50 centimetres long and can measure up to 500 grams. It is laser cut in Essex, screen printed in London and hand finished in our workshop.Brass Version:
The Gravity Ruler is made from brass. It is 50 centimetres long and can measure up to 500 grams. It is laser cut in Essex, screen printed in London and hand finished in our workshop.
Care information
The Gravity Ruler can be cleaned with a non-abrasive damp cloth. Avoid bending the ruler excessively.