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.
PVC pipe cutters cut cleanly, but if you use a saw or there are any burrs, use a deburring tool to smooth the inside and outside of the cut end. Dry-fit the pipes and make alignment marks. Step 3. Using a small can with a small applicator brush, apply purple primer to the inside of the fitting and the pipe end.