Re: [tg] terminology question

"Phantom diamonds" already means "the two diamonds in the center work together, and the ones on the ends work together", in the family with split phantom diamonds and interlocked phantom diamonds.

"Phantom twin diamonds" also already has a meaning. If you start from a 4x4 matrix, and call "split phantom waves, half a split circulate", you have a formation of 4 diamonds arranged in a square. From this formation, you might want to group the diamonds into two pairs, to do a call like 6-2 acey deucey, and you can do that in two different ways. I've heard this called "phantom twin diamonds" and "phantom point-to-point diamonds": I can't remember whether the word "split" was used before phantom.

That's why I think adding the word "overlapped" when there are two formations 90 degrees off from each other seems better to me than overloading "phantom" even more. And I think the only thing "overlapped" is currently used for is exactly this, though applied to 4-person formations instead of 8 person formations.

Andy

On Mon, Oct 28, 2024 at 5:02 PM Luke Sciarappa via tg <tg cosmos phy tufts edu> wrote:

If we're going for not-already-existing and descriptive terminology, I think perpendicular (or orthogonal) isn't bad.

On Mon, Oct 28, 2024 at 4:41 PM Mary Leland <mdpl alum mit edu> wrote:

I take it no one liked my idea of “perpendicular” so I thought I’d defend it a bit: it’s descriptive of the two formations being rotated 90 degrees from each other and it doesn’t make us rack our brains about which application of “phantom” is analogous.

That being said, I’d also be happy with resurrecting “dunlap” if it’s carefully defined to cover this case and the known historical uses.

Mary

Sent from my iPad

On Oct 28, 2024, at 2:44 PM, Luke Sciarappa via tg <tg cosmos phy tufts edu> wrote:

> Do you want us to use an older historical name, or would you prefer something more descriptive?

I'm strongly pro-descriptive, if we can reach a semblance of consensus about what is adequately descriptive.

On Mon, Oct 28, 2024 at 2:36 PM Sue Curtis via tg <tg cosmos phy tufts edu> wrote:

I have a vague memory of this also, and I think it was spelled Dunlap. A broader question for others is this: Do you want us to use an older historical name, or would you prefer something more descriptive?

Sue

On Mon, Oct 28, 2024 at 2:15 PM Judy Anderson via tg <tg cosmos phy tufts edu> wrote:

I am TOTALLY thinking of Dunlop. Thank you. So then the question is
what is the actual definition of Dunlop, and is it spelled Dunlap, and
could it apply?

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