Leaves from the lotus plant have an ability to repel nearly all the rain and dew that hits them. Scientists who want to make new waterproof materials are beginning to look at them. Chuan-Hua Chen and his team from Duke University have created a material that repels water like the lotus plant. They took high speed videos that [...]
Entries from October 29th, 2009
Design of H2O Repelling Material Inspired By Nature
October 29th, 2009 · No Comments · Physics
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Tungsten Ions May Diagnose Fusion Energy Reactors
October 29th, 2009 · No Comments · Chemistry, Physics
Ordinary sodium gas radiates bright yellow-orange light which scientists have termed the “D” spectral lines. Tungsten ions emit intense light in analogous “D” spectral lines, but they have higher energy levels.Measuring the wavelengths and relative intensities of lines in the spectrum of light released by a population of tungsten ions in the plasma can provide [...]
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Lasers Generate Underwater Sound: Potential For Naval And Commercial Underwater Acoustic Applications
October 29th, 2009 · No Comments · Physics
In this article I discovered that if you have a good conversion of light into sound can be achieved by concentrating the light sufficiently to ionize a small amount of water, which then absorbs laser energy and superheats, which then becomes a small explosion of steam, which can generate a 220 decibel pulse of sound. [...]
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