Come in, rubber duck..

[stackmonkey]

Scientist are using them to determine water flows under glaciers.

http://www.telegraph.co.uk/news/newstopics/howabou...

[XJSJohn]

there is a "flotilla" of rubber ducks going around the atlantic that were a lost cargo. I gather that they have been used to track currents so perhaps where they got the idea.

Ahh i see that they traveled much further than just the atlantic!!!

http://www.ananova.com/news/story/sm_2422477.html

[MK4 Slowride]

Amazing.

I want one.