You can watch the following animation to learn more about the basics of sound. Click the arrow to move on to the next slide. Acoustic levitation uses sound traveling through a fluid -- usually a gas -- to balance the force of gravity. On Earth, this can cause objects and materials to hover unsupported in the air. In space, it can hold objects steady so they don't move or drift. The process relies on of the properties of sound waves, especially intense sound waves. We'll look at how sound waves become capable of lifting objects in the next section. A basic acoustic levitator has two main parts -- a transducer, which is a vibrating surface that makes sound, and a reflector. Often, the transducer and reflector have concave surfaces to help focus the sound. A sound wave travels away from the transducer. Bounces off the reflector. Three basic properties of this traveling, reflecting wave help it to suspend objects in midair.|Nigerians and other people around the world quickly access news from online sources, and given the ease with which you can access the Internet on mobile phones or even sign up for newsletters, it's not so surprising that many people accept the Internet to read the latest news online. According to a recent UK survey, it was reported that 47% of Britons read news online, and the same may be true for many other countries in the world. Many news consumers are abandoning traditional newspapers and news magazines in order to access up-to-date news and information on the Internet, and this trend is not in favor of local newspapers in any case. Internet, to read updated and other important information, newspapers also take their goods on the Internet to meet people in the clouds. Many newspaper organizations are researching online sources of information to satisfy the needs of their abundant readers, and they are even now delving into mobile applications that would allow hot updates to reach their readers anytime, anywhere.




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