In the long river of history, with the changes of the times and the development and progress of life, our living tools are more and more advanced and convenient. Now life is so convenient and technology is so advanced, thanks to the creativity and achievements of some inventors. We can't live like this without them. First of all, the electric light is one of the greatest inventions in the world. If there is no electric light in our life now, it is hard for us to imagine how to spend this long night.
In ancient times, there were no electric lights, so we had to use candles or light lanterns. But after Edison invented the electric light, it simply lit up the hope of the whole human life. After the invention of the electric light bulb, we can continue to study and work at night, and many nightlife can only develop on the basis of the existence of electric light bulbs, otherwise it will still be an ancient life of sunrise and sunset.
Telephone, although few people often use it now, because WeChat calls are more popular, but telephone is also an indispensable thing in life. I didn't have a phone before, so I need letters to contact my friends and partners. With the telephone, communication in life is convenient, and the distance of trade is also close. It can be described as a great invention and the most practical invention.