When a car starts once the key turns the ignition, several processes happen all at once. It is not only the engine that comes to life, but other parts and systems start its work at once, too. But if one has ever heard of a car engine running without a muffler, one will notice the huge difference a muffler can make to the noise level. Inside a muffler, one will find a deceptively simple set of tubes with some holes in them. These tubes and chambers are actually as finely tuned as a musical...
