Of water a quarter of an inch on the side. To illustrate the power of the atomic idea, suppose that we have a drop For ordinary speeds we can certainlyįorget it and use the simple constant-mass law as a good approximation.īut for high speeds we are wrong, and the higher the speed, the more Practice one might think that the new law makes no significantĭifference. In some such approximate form this is a correct law. Hundred miles a second the mass is constant to within one part in a True law is: if an object moves with a speed of less than one Mass is found to increase with velocity, butĪppreciable increases require velocities near that of light. Was invented: mass is constant, independent of speed. For example, the mass of an object never seems toĬhange: a spinning top has the same weight as a still one. Things, how can the results of an experiment be wrong? Only byīeing inaccurate. But these things are easilyįixed, and checked back and forth. With the apparatus that you did not notice. Now, how can anĮxperiment be “wrong”? First, in a trivial way: if something is wrong “wrong” ones, and then we find the “right” ones. We said that the laws of nature are approximate: that we first find the Mike The Feynman Lectures on Physics New Millennium Edition Your time and consideration are greatly appreciated. So, if you can, after enabling javascript, clearing the cache and disabling extensions, please open your browser's javascript console, load the page above, and if this generates any messages (particularly errors or warnings) on the console, then please make a copy (text or screenshot) of those messages and send them with the above-listed information to the email address given below.īy sending us information you will be helping not only yourself, but others who may be having similar problems accessing the online edition of The Feynman Lectures on Physics. This type of problem is rare, and there's a good chance it can be fixed if we have some clues about the cause.
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