A lot of people go to school and feel that physics is difficult and boring, but it's true physics, all hidden in our daily lives
Today, five people in cope have gone through, but 99% of them can't tell the truth about physics
The first, the cold hands in winter, the cold hands in wood. Focus cope: it's not low iron. It's the same room. It's just that the iron-guided heat is so fast that the heat on your hands is being sucked away in a moment, so you're feeling cold. The wood is slow, the heat is kept, and the body is warmer。
Second, the high-pressure pan is so fast. The normal boiler boils the top 100 degrees, the temperature doesn't go up, and the meat boils slowly. High pressure pots are closed environments with higher air pressure and higher boiling points for water, which can reach more than 110 degrees. The higher the temperature, the faster the food molecules are cooked, that's the science of high-pressure saving。
Third, why rainbows always bend. Realism is particularly simple: the sun is coloured by a small drop of water in the air. It was a full circle, but we were standing on the ground, and the lower half was blocked by the earth, so we could only see the bending half round。
Fourth, the knife gets thinner and sharper. Physical pressure on knowledge points: the smaller the stress area, the greater the pressure. A sharpener is a sharpening of the blade, a smaller area of exposure to food, a force full of pressure, and no effort to cut the meat。
Fifth, it's white in winter. The heat you exhale is full of water steam, and you can't see it. After encountering cold air, rapidly liquefied and turned into countless tiny beads, which are the white fog we see, not heat, but liquid beads。
I have to say, there's science everywhere. Do you understand all this ground-breathing physics
