Wednesday, May 06, 2009

Walking on water

We decided to take a walk on the yellow-roped path to the pond....




to see how full it was after recent rains,




and then we wandered off the path and found our way to the run-off from the wet weather spring that has been flowing briskly from the woods behind the house now for several weeks. And in one of the pools that has formed, there were these fellows, water striders....


walking on water.


I've always liked messing about with water and especially watching the bugs and other creatures that make ponds and streams their homes. The wet weather spring is not permanent, so I wonder where this fellow will go when the water stops? In the meantime, I am glad he is on patrol for mosquito larvae.

These amazing insects were created in such a way that they can literally walk on the water by taking advantage of the surface tension. Naturally, that reminded me of the great science fiction short story Surface Tension by James Blish. I have probably read thousands of science fiction short stories in my lifetime, but that is one that stuck in my mind. Many consider it to be one of the best SF short stories ever written. I agree... The basic plot is that humans leave earth and land on this planet where they will not be able to survive, but before they die, they create a microscopic humoid life forms to live under the water. The story is about these creatures constructing an "air ship" to leave the water, and the trouble they have breaking through the surface tension to get out... Go to your library. Find it. Read...

1 comment:

Leenie said...

Water striders (or skippers) are wonderful insects. My kids kept some long enough to see how they move across the water and how they eat. Will have to check out that story now.