First, Nicholas? Tesla was a great scientist, but Edison invented the light bulb and changed people's lives. Even in the dark, people can see the light. Otherwise, it was really a lighting situation at night, and DC was used, which was very expensive. Nicholas at that time? Tesla successfully invented alternating current, which is the current we use every day. The cost and price are much cheaper. It's just a pity that Edison framed it at that time, which made everyone think that this alternating current was a terrible existence, so the progress of alternating current was completely delayed by many grandmothers. Edison did not do well, but it was just Nicholas? An invention of Tesla.
Nicholas? Tesla has many other inventions that are ahead of the times, such as particle beam weapons, which may sound difficult for everyone to understand. Think about the future space weapons, the earth's self-protection system and so on that we see in science fiction movies. This particle beam weapon is his research, and the flying saucer is his research. These are really beyond the times.
Even light and life are his research objects, and many of them can be seen in his drafts, but many secrets have not been answered even now, because no one understood these inventions before. What about Nicholas now? Tesla has been dead for many years, and even fewer people can understand it, but it has played a key role in scientific and technological progress.
How long does it usually take to learn to sing?
The key is talent. It will be easier if you have a certain foundation.
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