Science Memes

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A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

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Sub Sampling (mander.xyz)

submitted 4 months ago by [email protected] to c/[email protected]

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[–] [email protected] 5 points 4 months ago

Instead of actually explaining it, here's how I like to remember it: If you are measuring something that produces a perfect sine wave, and you can't take measurements faster than 30 Hz, then you can't definitively prove that the sine wave repeats faster than that. No matter how many data points you collect, the actual frequency could always be double what your measurements suggest.