October 2009

You are currently browsing the monthly archive for October 2009.

In autumn, who needs words?

Discovered via a pal comes this interesting wee video showing how trout move side to side with the swirling water behind objects in a river. Looks like there’s a reference to an academic paper too, so I’ll have a dig and see what I find. In the meantime, check it out.trout_vid.

Illusions

I don’t often post useless non-fishing-related nonsense on Tamanawis (read that carefully), but I couldn’t resist this amazing wee link. Discovered via the always interesting Astronomy Picture of the Day at NASA (see the Wiki here as well), comes the fascinating research of the Department of Brain and Cognitive Sciences at MIT.

same_color_illusion

Check out their page of optical illusions here (you’ll need to allow popups). I particularly like the Koffka Ring illusion..