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.
About 2000 years before Christ, the prehistoric inhabitants of the British islands (pre-Celtic people) were the dark-haired Iberians (Bronze Age and Iron Age). They built Stonehenge in the south of England, on Salisbury plain, a group of huge blue stone slabs placed in concentric circles. The Celts (700 B.C. - 43 A.D.) Around 700 B.C. the blond-haired Celts began to arrive from Northern Europe (Germany) ( at the beginning there were the Gaels - in the North - and then the Brythons - in the South-West and West - in the fourth century).