I just love how good us humans can get at nichy distinction topics if we just keep at the task long enough (and start early). We once had a film crew in our sc

I just love how good us humans can get at nichy distinction topics if we just keep at the task long enough (and start early). We once had a film crew in our school trying to get some shots of us at the computer. I overheard them having big problems getting the CRT flicker free on camera and trying to find out the refresh rate. I was maybe 12 at the time and just told them point blank it‘s 60Hz. They asked me how I knew and I just told them I could see it from the feel of the flicker. Was a good guess as well since it was one of the standard VESA frame rates. The cameraman came back to that kid 3 minutes later, showing me the shutter set to exactly 59.7 Hz with a still very surprised face.