Well after that our mourning have something on the front ..
No. So designing a good amplifier that amplifies much is not simple and easy ..
Here, it's about the type amplifier wind instruments. On this page, the instruments are charts that say the sound intensity can vary over a range frequencies with as much as 6 dB.,. This large difference is due to raw material from which it is made ??instrument, with the same shape.
Acoustical Society of America - How Brass Instruments are Built
If we want to get a change of size (volume) using a classic amplifier-loudspeaker system is to get the 6 dB of sound, we need to use as much as 4 times greater electrical power, not, for example, 50 watt, well, up to 200 watts .. Up so much growth in sound, as it turns out, it gives us the right material for the trumpet ..
Home theater, decibels, speaker setup, speaker sensitivity, surround sound.
Yes, we can easily lose with this energy gain, as we will use the wrong material ....
Now the one of the simplest experiments of physics ..
It is a "kitchen an experiment." We take two tablespoons can be of tea or soup. Take them by their ends and bringing together bellies ... Between tummy wpuszczmy very small stream of water. I bet that you will not be able to maintain a 2 mm gap between them ...
We can also repeat the experiment horizontally, so that the speed of the fluid force is created ..