What Is an Exhaust Resonator? by WilliamHanz Internal combustion engines usually make a lot of noise while they are running, and this noise can be annoying and exhaustive to your ears, especially when it is heard for a long period of time. Thus, mufflers were created to reduce the noise generated by the exhaust system. Exhaust resonators, meanwhile, further reduce the noise by making sound waves that cancel noises out. A typical automotive exhaust resonator is made of a hollow steel cylindrical tube and is attached to the muffler of an exhaust system. This type of resonator is designed similar to that of an acoustic resonator, which creates an âexhaust noteâ that gives the exhaust noise a less annoying and more pleasant tone. The sound can be enhanced by means of adjusting the exhaust note.
The Celts lived across most of Europe during the Iron Age. Today the Celts live in Wales, Ireland, Scotland, the Isle of Man, Cornwall and in Brittany, France. Their culture lives on in language, music, song and literature.
The Celts were well established in Ireland a century before Christ, and they dominated the island for nearly a thousand years, resisting challenges and absorbing influences from other cultures for many centuries more. To this day the core of Ireland's heritage remains unmistakably Celtic. Writing depicts the Celts as tall and warlike, placing their arrival in Ireland more than two thousand years ago. The term Celtic denotes a group of Indo-European languages. But we transferred the name to the people who spoke these languages. Before 500 B.C. the Celts had come to be known in an area comprising Bavaria, Switzerland, Austria, Hungary and Bohemia.