The discovery of electricity and the electrical technologies that transformed human life, including the light bulb and the telegraph.
Lightning flashing in the sky! Humanity has witnessed this massive energy since ancient times, but it took a very long time to realize that it was 'electricity.' Shall we embark on a journey to discover electricity together?Around 600 BC, the ancient Greek philosopher Thales discovered static electricity. He was the first to observe the fascinating phenomenon where dust and light objects clung to yellow amber after it was rubbed against soft feathers!In 1752, the American scientist Benjamin Franklin flew a kite into the sky on a stormy day. When lightning struck the key tied to the kite string, it created a thrilling spark, finally proving that lightning in the sky is indeed a massive form of 'electricity.'In 1800, Alessandro Volta of Italy invented the first battery, the 'Voltaic Pile,' by stacking alternating layers of copper, zinc, and paper soaked in saltwater. It was a historic moment when humanity could finally store electricity and use it whenever needed!In the 1830s, Samuel Morse invented the 'telegraph,' which used electricity to instantly send messages over long distances. Electric signals converted into Morse code accelerated human communication to the speed of light.In 1879, Thomas Edison finally perfected the long-lasting carbon filament incandescent light bulb. The invention of the electric light bulb, which illuminated the darkness, turned human nights into days and heralded the dazzling beginning of modern electrical civilization.▶ Read interactively