eli5 why are fighters (boxing, mma etc.) still weighed with old balance scales rather than digital?
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They’re more accurate. “Old balance scales” are just “Scales”.
Digital scales are really just a platform on a spring, with a resistance sensor. Every spring is a little bit different in the way that it compresses and every sensor that measures it is also a little bit different. So they need to be calibrated with a known weight, which itself was likely weighed with a regular analog scale. Over time even that calibration can become uncalibrated as the spring and the sensor wear down.
Those analog scales whoever will always be accurate because all you’re doing is balancing a known weight on one side and the players wait on the other side. That’s why they use them at the doctor’s office as well when you’re taking an accurate weight.
Of course I’m sure that it also is just really good for television. You can’t necessarily see the readout of a digital scale when they stand on it, and it probably doesn’t look as cool.
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