Talk:78 (number)
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removed text: <Drat. This is what Ian Stewart claimed and diagrammed in Another Fine Math You've Got Me Into; but Dahlke's page (http://www.eklhad.net/polyomino/tile76.html) has a different diagram w/76…that makes 78 much less interesting.>
(this is in reference to the *ino thing) Huh? Paullusmagnus 23:39, 15 Oct 2003 (UTC)
I moved the below paragraph here from the article:
- The 78 RPM record can be in one of two formats. It can be an Edison Disc format, or it can be a Victrola format. Both Discs are about the same size and both have the same size hole in the middle. Edison Discs do not play well with a Victrola reproducer, and Victrola Discs do not play well with an Edison reproducer. This is because the modulation within the groove is perpendicular to that of the other system. The Victrola system uses a side to side modulation or wiggle, and the Edison system uses depth modulation.
This is somewhat wrong in several ways, beginning in that Edison Records discs rotate at 80 rpm, not 78, as do many pre-mid 1920s lateral discs; Edisons are often not considered "78s" by collectors, and if one uses "78" as a catch-all for all pre-WWII systems of discs, there are certainly more than two formats (Pathe Records being the most prominent neither-of-the-aboves). I might try to sort this out in more detail later, but if so it might better belong in the analogue disc record article. -- Infrogmation 05:24, 2 Dec 2003 (UTC)
Heptominos moved up
Since the number of heptominos is a geometrical property (therefore mathematical) rather than a cultural association (the kind of thing the '78 is also' section is used for) I thunk it appropriate to move the heptominos paragraph up and out of the '78 is also' section. -- Anonymous User
Wouldn't there be 364 gifts total in the 12 days of Christmas? (1 on the first day, 3 on the 2nd, 6 on the third...78 on the 12th)?