According to the weight of a single electron and the number of Internet electrons, scientists have calculated that the weight of the whole Internet is only 50g, which is equivalent to the weight of a big strawberry.
3. 1994, the company holding the patent of GIF pictures wanted to charge for using GIF pictures as substitutes. Invented the PNG map, and later the company gave up the idea of charging!
4. The street sign of forest hills in Queens, new york has been upside down, but it hasn't come straight up. It has been upside down for hundreds of years.
5, sugar water is not enough, add some salt. Taste contrast, but salt should not be added more than 5% of the total sugar.
If you are at the bottom of a deep well, you can see the stars on a clear day. Pinhole imaging principle
7. The collar with a thorn around the dog's neck was invented by the ancient Greeks. His role is to protect his dog from wolves!
8. The first car in the world was born in 1886, which can be used to sort out traffic lights. The so-called "traffic lights" appeared in 1868, which was 18 years earlier than cars.
9. The moon is moving away from the earth at a speed of 3.8 centimeters per year.
10, why do you retch when brushing your teeth? Why do you retch when brushing your teeth? One of the important reasons for this situation is that brushing your teeth takes too long! Or too much foam in your mouth!