Another example is water drops on very hot surfaces. A hot skillet with both grease and water .. plasma physics ?? Richard
Airdrag was involved or not? The shape is also oscillating between convex and concave triangle. I also think the diamagnetic and gravitational forces can cause crazy things. Remember that water is a very weak plasma and the very strong magnetic field can cause electromagnetic effects in the water. I doesn't look like a well known physical condition to me. If you play the game I-Fluid you often notice a triangular shape of the drop when it is moving over matter. I don't know if it is a physical effect or a design decision. Games are a mixture but the physics simulation in them are often very impressive and continually getting better and what we need are pictures and not figures (numbers) so I think physics learning can come from games.. David On Mon, Dec 29, 2008 at 12:59 AM, Harry Veeder <hvee...@ncf.ca> wrote: http://www.newscientist.com/article/mg20026865.400 "They found that once a droplet with a diameter of 1 centimetre reached about 3 revolutions per second, its shape, when viewed from above, became triangular, an effect never seen before in the lab "