The Shadow of Surface Tension

But..there's nothing to cause the shadow! What's g...  ...water strider can rest atop the water, held up by surface tension . This means that the cohesive force of the water...  ...ks because it spreads its weight out over a large surface area (like snowshoes).That creates a slight inden...

http://www.neatorama.com/2013/03/04/The-Shadow-of-Surface-Tension/