5 of 5 from Welding on Modern Marvels from The History Channel.
Half science and half art, the ancient technology of welding is integral to modern life. It is the process of bonding, as simple as banging two metals together or as sophisticated as interlinking molecules with sound waves, and without it, the modern world around us - from cars to buildings to pipes that deliver clean water - would not exist.
With that sound intensity in mind, Does that mean workers became tone deaf at 20000 hz due to hearing loss that may be caused by the device?
TheClawsofangels 4 weeks ago