Cell Size And Scale

This is a pretty nifty zoomable Cell Size And Scale widget from Learn.Genetics that goes all the way from a coffee bean, which in this context is of gargantuan proportion, to a Carbon atom, which is unsurprisingly pretty damn tiny.

Cell Size And Scale
Cell Size And Scale

The smallest objects that the unaided human eye can see are about 0.1 mm long. That means that under the right conditions, you might be able to see an ameoba proteus, a human egg, and a paramecium without using magnification. A magnifying glass can help you to see them more clearly, but they will still look tiny.

via biotron

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