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Figuring Out Experimental Error
Using stopwatches, we measured the time it took for the tennis ball to fall 5.3 meters. Some of the individual measurements were off by over 30%, but the average time measured was only off by 7%. I did...
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Sub-atomic Physics: The Significance of 0.8%
When it comes to particle physics … [m]easuring something once is meaningless because of the high degree of uncertainty involved in such exotic, small systems. Scientists rely on taking measurements...
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Precision versus Accuracy
It’s possible to be precise but not accurate. It’s also possible to be accurate but not precise. These ideas are summarized very nicely in this diagram. Explaining the meanings of the words “precision”...
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