I've always had "favourite random bits of information" like the fact that 300tonnes of meteor dust hits the Earth every day (WOW!) or how that gentlemen (I forget his name) died leaning against his fireplace mantel "just to prove it could be done" and now I have a new one! Sonoluminescence! First off, it's an awesome word. But the really awesome thing is what it is….
"Sonoluminescence is the emission of light by bubbles in a liquid excited by sound.
The mystery of how a low-energy-density sound wave can concentrate enough energy in a small enough volume to cause the emission of light is still unsolved. It requires a concentration of energy by about a factor of one trillion. To make matters more complicated, the wavelength of the emitted light is very short - the spectrum extends well into the ultraviolet. Shorter wavelength light has higher energy, and the observed spectrum of emitted light seems to indicate a temperature in the bubble of at least 10,000 degrees Celsius, and possibly a temperature in excess of one million degrees Celsius.
Such a high temperature makes the study of sonoluminescence especially interesting for the possibility that it might be a means to achieve thermonuclear fusion. If the bubble is hot enough, and the pressures in it high enough, fusion reactions like those that occur in the Sun could be produced within these tiny bubbles." Source
Wow! How randomly awesome! A few minutes ago I had never even considered anything like it! I feel the need for some sort of ranting about Operation D.O.O.M. so I'm off to get my lab coat and to find Roy. He will have to listen to me; otherwise he won't get patted! *cackles*
Sunday, May 28
Raindrops on roses and girls in white dresses and sleeping with roaches and taking best guesses at the shade of the sheets before all the stains
Posted by
Frin
at
8:05 pm
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