06 MAY 2025 by ideonexus

 How to Win People to Your Way of Thinking

PRINCIPLE 1 The only way to get the best of an argument is to avoid it. PRINCIPLE 2 Show respect for the other person's opinions. Never say, "You're wrong." PRINCIPLE 3 If you are wrong, admit it quickly and emphatically. PRINCIPLE 4 Begin in a friendly way. PRINCIPLE 5 Get the other person saying “yes, yes” immediately. PRINCIPLE 6 Let the other person do a great deal of the talking. PRINCIPLE 7 Let the other person feel that the idea is his or hers. PRINCIPLE 8 Try honestly to see thing...
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01 DEC 2014 by ideonexus

 Schrodinger's Cat as a Lock for a Box

Quantum mechanics claims that there is no definite cat in the box, only a ghost, a superposition of a live cat and a dead cat. That is, until we open it and look. A measurement will collapse the system into one state or the other. So goes Schrödinger’s thought experiment. It is completely wrong, of course. A cat is a macroscopic system, and there is no mysterious intervention by a magical observer needed to make it live or die: just its interaction with the rest of the Universe, a phenome...
Folksonomies: quantum physics
Folksonomies: quantum physics
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22 APR 2014 by ideonexus

 Knowledge VS Understanding

Knowledge understanding The facts The meaning of the facts A body of coherent facts The “theory” that provides coherence and meaning to those facts Verifiable claims Fallible, in-process theories Rightor wrong A matter of degree or sophistication I know something to be true I understand why it is, what makes it knowledge I respond on cue with what I know I judge when to and when not to use what I know  
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24 DEC 2013 by ideonexus

 Gedankenexperiment

However, the subject need not be an esoteric one for a gedankenexperiment to be fruitful. My own favorite is Galileo’s proof that, contrary to Aristotle’s view, objects of different mass fall in a vacuum with the same acceleration. One might think that a real experiment needs to be conducted to test that hypothesis, but Galileo simply asked us to consider a large and a small stone tied together by a very light string. If Aristotle was right, the large stone should speed up the smaller one...
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Gino Segre on the importance and validity of "thought-experiments," using Galileo's disproof of objects falling at different rates as an example.