1. leyden bottles have aroused strong repercussions in Europe. Electricians not only did a lot of experiments with them, but also used them to ignite alcohol and gunpowder. The most spectacular performance was performed by Frenchman Nolette in front of a cathedral in Paris. Nolette invited members of Louis XV's royal family to watch the performance of Leyden Bottle. He arranged 700 monks hand in hand in a line, with a total length of 900 feet (about 275 meters). Then, Nolette asked the monks at the head to hold the Leyden bottle with their hands and the monks at the tail to hold the lead in the bottle. In an instant, 700 monks jumped up almost at the same time because of electric shock.
Secondly, the Wright brothers found that the air pressure center turned to the side, and the air pressure center of the curved wing did not always move in the same direction as that of the flat wing. Contrary to the argument of many scientific books, scientists have obtained data on the pressure of the atmosphere on the wing.
Three, Wright Brothers (Wright brothers) is a famous American scientist, brother is wilbur wright, brother is Orville Wright. They are American inventors and airplane manufacturers. 1903 12 17, the Wright brothers first flew a fully controlled, self-powered and heavier-than-air plane, which was "the first plane in the world".
Fourth, the Wright brothers became interested in machinery almost when they were sensible. As an adult, Orville tells almost all stories related to mechanical design whenever he recalls his childhood to others.
Similar to a battery, a capacitor has two electrodes. Inside the capacitor, two electrodes are respectively connected to two metal plates separated by a dielectric. The dielectric can be air, paper, plastic or any other non-conductive substance, and can prevent two metal electrodes from contacting each other.
Six, the metal plate connected to the negative electrode of the battery on the capacitor will absorb the electrons generated by the battery. The metal plate connected to the positive electrode of the battery on the capacitor will release electrons to the battery. After charging, capacitor and battery have the same voltage.