Although the size of pixels differs greatly, 300 micrometres is about the average. Pixels contain three subpixels that are red, green, and blue. Pixels are pretty cool, but voxels are even better. They are three-dimensional pixels.

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Paramecia vary quite a lot in size, but it's usually around 200 mircrometres. These little guys are protists and like to swim in water. They can move two millimeters per second!