1752, Franklin put forward the kite experiment. In the experiment, other scientists put kites with keys into the clouds, and the metal wires wet by rain led to lightning in the air between their fingers and keys, which proved that lightning in the air was the same as electricity on the ground. Later, according to this principle, he invented the lightning rod.
Franklin made others do many experiments, further revealing the nature of electricity and putting forward the term current. Franklin's other great contribution to electricity was to design the famous kite experiment 1752, which proved that lightning in the sky and electricity on the ground are the same thing.
Extended data:
Franklin's other scientific contributions: he invented the rocking chair, the lightning rod and improved the street lamp. An ocean current was discovered in the Gulf of Mexico. Promulgated the news dissemination law. The first person to draw a storm map. Discover the harmfulness of human exhaled gas. Explain the northern lights first. Known as the father of modern dentistry. First, the fire brigade was organized. Established a modern postal system.
Modern parliamentary election law was founded. Found the cause of the cold. Invented granular fertilizer. Designed white linen clothes for summer wear, and designed the earliest swimming glasses and flippers. In addition, he also studied meteorology, geology, acoustics and ocean navigation, and made many achievements.
The invention of the glass harmonica was invented by 1763. It is a set of glassware placed on a horizontal spindle. The spindle is filled with water through the player's pedal, and then sounds through the delicate friction of fingers.
Baidu Encyclopedia-Benjamin Franklin