Not all scientific studies are created equal - David H. Schwartz 04:27 Making sense of irrational numbers - Ganesh Pai 04:41 Newton’s three-body problem explained - Fabio Pacucci 05:31 Is there a disease that makes us love cats_ - Jaap de Roode 05:06 If matter falls down, do...
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Whereas Newton’s inequality works for arbitrary real , the Maclaurin inequality breaks down once one or more of the are permitted to be negative. A key example occurs when is even, half of the are equal to , and half are equal to . Here, one can verify that the elementary symmetric me...
that decays in the variable; one can then hope to do a suitable stability (or instability) analysis of this soliton to perturb it to a blowup solution, as there are many results of this type for other equations that one could use as a model. The energy conservation law does constrain to...
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So 6.67 x 10-8 dyne is a miniscule force. When you deal with massive bodies like the Earth, however, which has a mass of 6 x 1024 kilograms (see How much does planet Earth weigh?), it adds up to a rather powerful gravitational force. That's why you're not floating around in ...
We also have a crude Twitter Community Notes style feature with the Thanks button. For example, if someone posts somethign that's incredibly wrong and someone does a good technical rebuttal and a dozen people Thank that posts, then it's really obvious to anyone watching that that post that'...
are interchangeably used to describe torque. the distance of the point of application of force from the axis of rotation is sometimes called the moment arm or lever arm . types of torque torque can be either static or dynamic . static torque is a torque that does not produce an angular...
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