75 kilograms
75 kgMass · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Mass
Everyday mass
Bar length measures mass, not physical size. Both bars start at zero kilograms (kg). Pictures identify the objects only.
A little perspective
The wet mass of a giant barrel sponge is about 1.07 times 75 kilograms.
Mass: 75 kg; definition.
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Defined wet mass: 80 kg; defined specimen; range 30 kg–180 kg.
A defined 1.2 m high giant barrel sponge (Xestospongia muta) with an 80 kg wet mass. Colonies grow in irregular barrel forms; height excludes the reef substrate and the central cavity is open.
The marked defined wet mass is calibrated. Unmeasured illustration details are representative.
Measurement details
Compare 75 kilograms with the wet mass of a giant barrel sponge. The notes below explain how each value was chosen.
Mass · definition
The quantity is exact as entered. Comparisons use the clearly stated specimen, model or nominal measurement.
Defined wet mass · defined specimen · range 30 kg–180 kg
A defined 1.2 m high giant barrel sponge (Xestospongia muta) with an 80 kg wet mass. Colonies grow in irregular barrel forms; height excludes the reef substrate and the central cavity is open.
The diagram uses the recorded measurements. Details outside the marked spans do not set the scale.
Mass is distinct from weight: an object’s mass stays the same as gravity changes.
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A little smaller. A little larger.