ha ha. Pure maths, to the extent I can actually manage to do it. Not applied maths, and certainly not engineering or comms tech.
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An interesting thing I didn't know until today
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It’s mostly to do with the frame rate (30fps for NTSC, 25(ish) for PAL) and the number of lines transmitted (525 for NTSC, 625 for PAL). And the frame rate comes from the power grid, which runs at 50Hz in Europe and 60Hz in the US. PAL uses a bit more bandwidth which means fewer channels but a bit better picture quality (hence 625 vs 525 lines). SECAM is essentially the same as PAL but uses a different method for passing on colour info.
BTW, the actual pixel size is a bit smaller than 525/625. There’s other info broadcast in the lines that are out of shot (I think, for example, CEEFAX used to get broadcast in that part of the image). NTSC is at 640x480; PAL at 768x576.
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Christopher Lee attended the last public guillotining in France and, later that same year, was briefly a volunteer in the Finnish army during the Winter War against the Soviet Union.
This was in 1939 when Lee was still only 17 years old
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Originally posted by San Bernardhinault View PostIt’s mostly to do with the frame rate (30fps for NTSC, 25(ish) for PAL) and the number of lines transmitted (525 for NTSC, 625 for PAL). And the frame rate comes from the power grid, which runs at 50Hz in Europe and 60Hz in the US. PAL uses a bit more bandwidth which means fewer channels but a bit better picture quality (hence 625 vs 525 lines). SECAM is essentially the same as PAL but uses a different method for passing on colour info.
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Notable designer and occasional TV face Wayne Hemingway is the son of professional wrestler Billy Two Rivers, who was something of a novelty act in the 1950s/60s with his Native American (Canadian) outfits and war dances etc.
I was researching Two Rivers based on his name appearing on an old Scunthorpe Baths playbill, and at first assumed that his parentage of Hemingway was an appealingly random bit of Wiki vandalism, but it's the truth.
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Originally posted by jwdd27 View PostNotable designer and occasional TV face Wayne Hemingway is the son of professional wrestler Billy Two Rivers, who was something of a novelty act in the 1950s/60s with his Native American (Canadian) outfits and war dances etc.
I remember him well when wrestling was featured on Saturday afternoon TV. He was my Dad's favourite, and he wasn't alone.
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Originally posted by San Bernardhinault View PostIt’s mostly to do with the frame rate (30fps for NTSC, 25(ish) for PAL) and the number of lines transmitted (525 for NTSC, 625 for PAL). And the frame rate comes from the power grid, which runs at 50Hz in Europe and 60Hz in the US. PAL uses a bit more bandwidth which means fewer channels but a bit better picture quality (hence 625 vs 525 lines). SECAM is essentially the same as PAL but uses a different method for passing on colour info.
BTW, the actual pixel size is a bit smaller than 525/625. There’s other info broadcast in the lines that are out of shot (I think, for example, CEEFAX used to get broadcast in that part of the image). NTSC is at 640x480; PAL at 768x576.
it was the ability to handle red, which meant that it was sold to the Soviet Union and China
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This wiki is a treasure trove of things I didn’t know.
https://en.wikipedia.org/wiki/List_o...tive_reception
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Originally posted by Hot Pepsi View PostThis wiki is a treasure trove of things I didn’t know.
https://en.wikipedia.org/wiki/List_o...tive_reception
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Originally posted by Satchmo Distel View Post
The one on sports is interesting. A very comprehensive and accurate overview of why people hate NBC's coverage of the Olympics, although that's subsided in the last few games for a few different reasons.
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