In fact, it's a bit too much. I know he said this for the election, especially for the national riots caused by the brutal law enforcement of the police. When the Trump administration lost points, it stepped on a black ticket.
In the fierce election campaign in the United States, it is a well-known fact that in order to win votes, politicians are not talking too much, but constantly catching shadows and magnifying them for their own use. But this nonsense of Biden's seems to have little positive impact on him, and it is likely to be a negative impact.
Thomas Alva Edison was the inventor of the light bulb, which was a mistake. This is because since childhood, Edison's story has been deeply imprinted in the hearts of almost everyone in the world in textbooks. In fact, the light bulb was not invented by Edison, but was invented and used long before him.
Humphry davy, an early British chemist, electrified the platinum wire in 180 1 year, and invented the electric candle in 180 1 year, that is, using the arc lighting between two carbon rods; Another American, Henry Goebbels, put carbonized bamboo filaments in a vacuum glass bottle at 1854. This "light bulb" can last for 400 hours and is an effective incandescent lamp. Unfortunately, there was no patent at that time.