topmain

HOTELS IN CHINA AND ASIA

CLICK HERE FOR ONLINE HOTEL RESERVATION

IT IS INTERESTING!

The new system of sound absorption blocks 99.7% of all sounds - VIDEO PDF Print E-mail
Friday, 18 September 2015 12:38
Scientists from the Hong Kong University of Science and Technology have developed a new system that can absorb 99.7 percent of all the sounds that penetrate through it. Many systems use sound-absorbing acoustic insulators - materials that absorb sound only a limited type of frequencies. However, by combining a variety of insulators in a single environment it is possible to expand the number of frequencies that will be isolated. However, to create a material that would have absorbed all sound frequencies, scientists seem quite challenging. The system would get too large and complex to implement. New same technology proposes the use of a pair of resonators that are integrated into a single layer of material, which begins to naturally vibrate under the influence of the frequency and on the same frequencies at which the device operates, to which the system is connected (each object having its frequency depending on its physical and composite properties). The sound is pretty much extinguished one of the resonators: the sound passes through it and "programs" the frequency of the resonator. However, not all frequencies are isolated, some are beginning to dissipate through the resonator itself. At this point in the operation enters the second resonator is configured so as to match the frequency of the first resonator dissipating residual frequency quenching and create interference which isolates any noise produced. The pair, both the resonator can absorb 99.7 percent of all the noise any volume that pass through them.

НАЖМИТЕ ЗДЕСЬ ДЛЯ ПРОСМОТРА ВСЕГО СПИСКА НОВОСТЕЙ О НЕОБЫЧНЫХ ЯВЛЕНИЯХ>>>

CLICK HERE TO SEE ALL LIST OF UNUSUAL PHENOMENA NEWS>>>


Related news items:
Newer news items:
Older news items:

 

Add comment


 

SHARE ON: