Wikipedia talk:Today's featured picture (animation)/January 20, 2007

The animation, to me, sort of demonstrated the circle as having a circumference of pi, instead of showing the relationship between the circumference AND the diameter. Pardon me, it is rather pretty, but inaccurate.

concurred. __earth ^(Talk) 11:37, 20 January 2007 (UTC)

actually, i take that back. It's accurate. the relationship between the radius and the perimeter is observable from the diagram. __earth ^(Talk) 11:45, 20 January 2007 (UTC)

it's not inaccurate, note that the diameter of the circle is 1, since this is exactly how the number line is defined in the first part of the animation. - 80.143.112.207 12:51, 20 January 2007 (UTC)

This animation plays far too fast for anyone who doesn't already understand pi to understand what the image is showing. It should be slowed down. SECProto 15:58, 20 January 2007 (UTC)

I agree. It would be better if slowed down - Chris Wood 16:32, 20 January 2007 (UTC)

I agree. The perimeter of a circle is 2*pi*R, if the circle's radius is one, circunference would be 2*pi, not pi, as stated. So, this animation is WRONG!

But the radius is not 1 but 0.5. --Bjarki 17:42, 20 January 2007 (UTC)

It shows the diameter as being 1, not the radius. SECProto 18:29, 20 January 2007 (UTC)

awesome

This is blowing my mind. I finally understand stupid pi! I love the pedia. jengod 19:56, 20 January 2007 (UTC)

That was my response, too! The animation was a little too fast, like others have mentioned, but once you realize what it shows it's pretty darn cool. Sam927 21:57, 20 January 2007 (UTC)

Hold on, so thats how pi is defined? If the diameter of a circle is 1, then its circumference is pi in the same units?Gettingby 23:33, 20 January 2007 (UTC)

Yes, if you mean circumference=pi*diameter. Art LaPella 06:34, 21 January 2007 (UTC)