美国科学家发现,声波可能取代冰箱,着手研制声波冰箱,其原理是:声音产生振动,改变材料的温度;温度的改变使材料振动,产生声音。美国海军实验室的史蒂苏·格雷特教授发明的声波冰箱内,声波是由一根氦气管发送的,氦气管的一端逐渐冷却。用泵使水通过管子的冷却区,再把冷气送进放食物的分隔室。声波冰箱的噪音高达160分贝,但是限制在冰箱内,使人几乎听不见。 American scientists found that sound waves may replace the refrigerator, proceed with the development of acoustic refrigerator, the principle is: sound vibration, changing the temperature of the material; temperature changes make the material vibration, the sound. In the sonic refrigerator invented by Professor Stewart Gray at the U.S. Naval Laboratory, the sound waves were sent through a helium tube, one end of which was gradually cooled. Pump the water through the cooling zone of the tube and bring it to the compartment where the food is placed. Sound wave refrigerator noise up to 160 decibels, but limited to the refrigerator, people almost can not hear.