1. Copying machine
At first, Edison invented paraffin paper, which was only widely used in the packaging materials of food and candy. Later, he tried to carve the outline of words on paraffin paper to form a paraffin lettering paper plate, put white paper under the paper plate, and then rolled it from the lettering paraffin paper with an ink roller. A wonderful thing happened, and clear handwriting appeared on the white paper plate.
After many improvement experiments, in 1976, Edison began to produce the copier he invented, and all of a sudden, institutions, schools, institutions and organizations all adopted this kind of stencil mimeograph. Because Edison's copier is very popular and popular all over the world, Edison deeply realized that he should invent things that people generally and deeply need.
2. Synchronous transmitter
In the early days, the telegraph could only transmit one message at a time and could not exchange signals at the same time. As Edison himself was a telegraph technician, he began to improve the traditional transmitter and made a double transmitter. In 1974, he developed a quadruple transmitter, that is, a synchronous transmitter. At that time, before the development of radio, synchronous transmitter was a major breakthrough.
Third, improve the telephone
As we all know, the modern telephone was invented by Bell. In fact, the telephone can receive and speak clearly, thanks to Edison's repeated experiments, breaking through the traditional pattern and making a toner transmitter, which improved the sensitivity, volume and receiving distance of the telephone in one fell swoop. Otherwise, we will still often say hello when we call now! Hey! I can't hear you. I can't hear you clearly.
Four, the phonograph was born
One night in December, 1877, the staff of Mengluoyuan Laboratory trembled slightly, not because of the cold, but because they heard the recording for the first time in human history: "Ma Mei has a little sheep whose fur is as white as snow. No matter where Ma Mei goes, the lamb is always beside her ... The French government also awarded Sir Edison the title! Later, Edison improved the phonograph many times until the drum type was changed to bakelite turntable type. It was not just a year or two, but after decades of continuous improvement!
5. Newton
Newton was alone in the orchard at home. As he was thinking while walking, he accidentally bumped into an apple tree in the garden. At this moment, an apple hit Newton right on the head. Newton suddenly woke up from the problem and picked up the apple. At this time, he fell into another problem: why did the apple fall to the ground instead of floating in the sky? Finally, Newton put forward a universal law of the simplest phenomenon: gravity.