Traditional Culture Encyclopedia - Weather forecast - How to treat the new imperial cat gas cylinder in the Forbidden City?
How to treat the new imperial cat gas cylinder in the Forbidden City?
Observe the pressure in the bottle.
During the interaction between liquid and gas in the bottle, the pressure will change. When the air pressure increases, the liquid in the bottle will rise, indicating that the weather is beginning to clear up; When the air pressure decreases, the liquid in the bottle will drop, indicating that the weather is beginning to turn cloudy or rainy.
The imperial cat gas cylinder in the Forbidden City is a traditional meteorological instrument, which uses the physical changes of liquid and gas to predict the weather.
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