Invention on Instagram: "The Rubens tube was created in 1905 by physicist Heinrich Rubens as a vivid demonstration of how sound behaves as a physical force. He designed a sealed metal tube filled with flammable gas and pierced along the top with evenly spaced holes. When the gas was lit, a row of flames appeared like a line of tiny burners. By introducing a tone through a speaker at one end, Rubens was able to make invisible sound waves become visible in the motion of fire. As sound travels thro

Wealth on Instagram: "Every move he makes is inches away from a live 22,000 volt current, and the grid depends on it staying active during this process. ⚡️ Lineman crews use specialized power-line connectors that allow them to join or repair high voltage cables while they are still energized. This method prevents outages and keeps electricity flowing to entire neighborhoods even as critical repairs are happening. The gloves, bucket insulation, and tools he uses are all engineered to block electr