Difference between revisions of "Mass"
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| + | Issac Newton needed a mathematical definition of what caused gravity and so defined it thus<<ref>Issac Newton ''Mathematical Principles''</ref><blockquote>The quantity of matter is the measure of the same, arising from its density and bulk conjucntly ... It It is this that I mean hereafter everywhere under the name body, or mass. And the same is known by the weight of each body, for it is proportional to the weight, as i have found by experiments on pendulums, very accurately made, which shall be shown hereafter.</blockquote> | ||
Revision as of 08:12, 18 July 2023
Mass is the what enables us to say that an object (or an idea) is weighty or massive.
Context
Issac Newton needed a mathematical definition of what caused gravity and so defined it thus<[1]The quantity of matter is the measure of the same, arising from its density and bulk conjucntly ... It It is this that I mean hereafter everywhere under the name body, or mass. And the same is known by the weight of each body, for it is proportional to the weight, as i have found by experiments on pendulums, very accurately made, which shall be shown hereafter.
- ↑ Issac Newton Mathematical Principles