In classrooms, conference rooms or music rooms, we often see sound-absorbing panels on the walls. The purpose is to separate sounds so that people outside are not disturbed. There are many small holes on the surface of the sound-absorbing board. After the sound enters the small holes, it will be reflected in the inner wall of the structure a bit like a sponge, until most of the energy of the sound waves is consumed and become heat energy, which achieves the effect of sound insulation.
When it's snowing, the ground, buildings, and trees are often covered with snow. Unlike ice, snow is not a solid solid. On the contrary, snow is sparsely gathered together, which contains many tiny gaps, a bit like the structure inside the sound-absorbing panel. These gaps produce sound-absorbing effects on sound waves, especially for sound waves at frequencies above 600 Hz. The snowy night is an exceptionally quiet area. This is the reason.
When it's snowing, the ground, buildings, and trees are often covered with snow. Unlike ice, snow is not a solid solid. On the contrary, snow is sparsely gathered together, which contains many tiny gaps, a bit like the structure inside the sound-absorbing panel. These gaps produce sound-absorbing effects on sound waves, especially for sound waves at frequencies above 600 Hz. The snowy night is an exceptionally quiet area. This is the reason.
Tape Measure Length,Stainless Tape,Waterproof Tape Measure,Flexible Steel Measuring Tape
Henan Liangjin Tools Co.,Ltd , https://www.liangjintools.com