The Wonderful Kite Experiment
In Benjamin Franklin’s time, there were no electric trains, no telegraphs, telephones, radiographs, and radiophones. The driving and lighting power of electricity was not understood. People did not know that lightning was due to the presence of electricity in nature.
Benjamin Franklin, who was keen and inquisitive, made scientific experiments with the Leyden jar and with simple machines which produced electricity by friction. He discovered that in certain ways, the action of electricity and lightning was the same, and he observed that electric fluid might be conducted along a pack-string.
So he determined to prove that electricity and lightning were the same, by drawing lightning down from the clouds along a pack-string. He used a silk kite, with a sharp-pointed wire fastened to its framework, and a silk ribbon tied to the end of the kite-string holding a metal key in place.
He secretly flew the kite during a June thunderstorm. And as he saw the kite-string stiffen in a strange way, he eagerly laid his hand against the key. Instantly he felt a shock of electricity pass through him. He had made one of the most important discoveries of all ages!
His discovery was soon known throughout the world. Men made other experiments, and in time invented the wonderful electrical machines and devices which we enjoy to-day.