As the poster accompanying this report illustrates, the standard theory explaining sonoluminescence is that the sounds waves applied to the flask and moving through the liquid to the bubble create a shock wave within the bubble. ... So long as the amplitude of the sound wave remains stable, the bubble will continue to emit light. If, however, the amplitude of the sound wave is driven too high, the bubble will quickly disintegrate. ... Rather than heat creating the light, Prosperetti believes that the speed of the stream of water forced from the bubble by the sound wave causes the bubble t...

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• Grade Level: Undergraduate

Within the disk, collisions and friction between the atoms of gas convert the energy of its orbital motion into heat energy. ... This heat energy being produced is then radiated as X-rays. Deep in the Milky Way galaxy's core is a mysterious and powerful source of radio waves known as Sagittarius A* (Sagittarius A star). ...

• Word Count: 984
• Approx Pages: 4
• Grade Level: Undergraduate