Tag Archives: michel van biezen

The particle zoo of 400 or so subatomic particles

Via Wikipedia: In particle physics, the term particle zoo[1][2] is used colloquially to describe a relatively extensive list of the then known “elementary particles” that almost look like hundreds of species in the zoo. In the history of particle physics, the situation was particularly confusing in the late 1960s. Before the discovery of quarks, hundreds […]

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How far can a human eye see? What is its power?

Michel van Biezen makes great educational videos and you can learn a lot of things from there. One of his videos teaches us how to calculate the power of the eye. It turns out that the human eye, with an aperture of 4mm in the iris, can distinguish two objects that are 3 meters apart […]

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