Why is TV 29.97 frames per second?
by Super User, 2 years ago
More on that thing I mentioned at the end of the video here:
Here is the spherical video I was making with Henry Segerman which made me research NTSC frame rates in the first place:
Yes, technically, if you divide 4,500,000 by 286 you get a horizontal frequency of 15,734.26573 lines per second. That matches a frame rate of 29.97002997002997… and so old TVs used 30/1.001 = 29.97002997002997…
- A lot of people pointing out that increasing the number of horizontal lines without increasing the bandwidth would be a loss of resolution. Which is a good point.
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MATT PARKER: Stand-up Mathematician
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