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This tag is for the classical concept of forces, i.e. the quantities causing an acceleration of a body. It expands to the strong/electroweak force only insofar as they act comparable to ‘classical’ forces. Use the [particle-physics] tag for decay channels due to forces and [newtonian-mechanics] or one of the other subtopics of [classical-mechanics] for the dynamics of classical systems.
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In spinning, twist accumulates in the thinnest parts of yarn. Why?
If you're spinning yarn from some kind of fibre, areas of the yarn that are slightly thicker (i.e. the fibres aren't drafted out/pulled apart and stretched out as much) don't twist much while the thin …
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How can I calculate the "wasted" force in a rotation-to-occillation piston?
A piston doesn't change its angle when its connecting rod's angle is changed from the pulling/pushing of the wheel/crankshaft because it needs to be inside of a constraint (a cylinder or track to hold …
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Why does twist distribute itself according to the thickness of yarn?
In spinning, a convenient physical reaction happens when you haven't drafted (pulled the fibres apart) enough to make a consistent gauge of yarn. Thinner spots will accumulate more twist, while the tw …
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How does a twisted piece of string/yarn wind back on itself? What kinds of forces are respon...
Is anyone able to draw a chart showing where certain forces are pushing/pulling? …