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Friday, August 21, 2009
Glass Stories
Glass Stories Glass and Resonance We heard the stories of all the opera singers can shatter like glass in a collision with a specific indication. But how plausible is this concept? In order to break the glass, the voice of a singer to be able to match the frequency of the glass. (Each object has a resonant frequency, which is the natural frequency at which an object vibrates.) If you are flying on the edge of a glass, you hear a hum of resonance, and if hit, you can create a tune - the sound is the only resonance frequency of the glass. The singer had to sing very strong: just a note the production of about 135 decibles, which is more than Sonic Boom in connection with some 'music. The human pain threshold is about 120 decibels. It should be kept for a period of at least two or three seconds for the right to build the vibrations, so that the glass may break. Towards the end of anni'70, laboratory experiments with a professional soprano and trumpet player showed that he could not shatter the glass. The only singer who has apparently succeeded, the famous tenor Enrico Caruso, but the validity of this claim is a matter of conjecture. Because the glass of wine and glasses of wine for so long stems? Lovers of wine announce that it is essential to avoid the heat of his hand on the glass, warming the wine. Each drink, which must be refrigerated in a glass with a stem. Equally important is the aesthetic result of the penalty, that the joy of this experience. In contrast, fine Scotch or Cognac is drunk from a glass snifter, with a short stalk. The master snifter is wedged in between the middle and ring fingers with the palm and fingers around the glass bowl, warm, sweet, whiskey / brandy and flavors come to the fore. Glass and computer Anyone with a computer knows that an optical mouse does not work on a glass table! Because optical mice with an LED and a fast camera, recordings from the surface under the mouse. This information is analyzed by a DSP (Digital Signal Processor), which are used for the deficiencies in the underlying surface and activity. Some materials, like glass, mirrors or other very bright, uniform surface, with the possibility of DSP for the analysis of the surface under the mouse. Since glass is transparent and uniform, the mouse is not sufficient to weaknesses in the underlying surface to determine movement. Mirrored surfaces are also a problem because they constantly retu to the same image, so that the DSP can not be identified correctly Movement. If the system is unable to see the changes of surface associated with the movement, the mouse does not work correctly. Glass and household glass is a big "mistake" was for most of the owners! Infinity building foam lurking on your tile racks and soap, and soap film on shower doors, as the invasion of Alien 5! Here are some practical tips on how to keep out foreigners at home. Some say that the best way to watch movies of glass doors for non-wax floor cleaner. Everything you do, wipe up and make sure it is very good. Vinegar is in second place - you can also use vinegar in the dishwasher or sink, to get rid of soap residue and give your dishes a shine. Ammonia can also clean the glass. You can also create your own ammonia solution through the combination of ammonia and water. Use a spray bottle and spray directly on the surface. Use a sponge or stiff-bristled scrub brush affected areas. Clean and wash clean. Newspapers is enough to clean the gunk off the clutch and it is easy enough to serve as a cleaning cloth.
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