Nikola Tesla in his 60s adjusting a radio device in his lab in New York City. Like most significant inventions, radio had not just one âfather,â but many. British mathematician James Clerk Maxwell first proved the existence of radio waves mathematically in 1864.
Cutting with Rotary Tools. Rotary tools are the most widely used method for cutting composite laminates. Whether you are cutting carbon fiber sheet or a fiberglass hull, there is usually a rotary tool just right for the job. Rotary cutting tools vary from small handheld rotary tools, like a Dremel or pneumatic rotary, to routers and even angle grinders.
For the rigid composite material made from carbon fiber used in aerospace and other applications, see Carbon fiber reinforced polymer. Carbon fibers or carbon fibres (alternatively CF, graphite fiber or graphite fibre) are fibers about 5â10 micrometres in diameter and composed mostly of carbon atoms.