# Talk:List of spaceships

## "Proper" (x,y)c/p format

I think speeds for etc. Waterbear and other should not be listed as nc/p or such, but with the proper (x,y)c/p format. Why? By the same metric that Waterbear is 28c/79, glider is c/2 (as it is (1,1)c/4), but everyone would agree that claim is utterly ridiculous. Glider is c/4, so Waterbear is not 28c/79. It is (23,5)c/79. --Sphenocorona (talk) 19:33, 13 July 2016 (UTC)

- If this is truly about speed, then it should be discussed at speed, which defines it in this allegedly "improper" way. But it seems Sphenocorona feels this table should list not just simply the speed, but the speed and the direction. The
*proper*term for that, at least in real life, is "velocity". Do CA enthusiasts conflate the two terms? ( Micromegas (talk) 09:44, 12 March 2018 (UTC)

- A related conversation at Talk:Direction#Difference from "slope" made me realize that "(x,y)c/p" has one more degree of liberty than velocity, so that real life term does not apply directly to the CA world. Still (or even more so), it's not the same as speed. Micromegas (talk) 10:35, 12 March 2018 (UTC)