air pressure

Researchers calculate that Earth's atmosphere weighs about 5.15 x 10^18 kg, nearly a billion times more than the Great Pyramid of Giza.

Water evaporates from the covering membrane, causing soap bubbles to explode even when no external forces are present.

With the densely populated population, there must be many people who wish that the size of the Earth could increase.

The small hole in the airplane window helps maintain the air pressure at a safe level inside the cabin, while escaping the steam so the window is not dimmed.

The clouds in the sky are sometimes high and the clouds are higher than 10km, the clouds are low and some tens of meters.

The fact that you pump too much of a sleepy pillow on an airplane may cause you trouble!

You may think that it is childish! Don't be hasty, though thin, but the shell of a regular egg is not too svelte. Want to break by squeezing its pointed ends into the palm of

Oxygen masks on the aircraft will be dropped automatically if the cabin suddenly loses air pressure and helps passengers breathe in a few minutes.

If you ever fly, surely you have experienced the effects of air turbulence: it is a sudden shake of the plane when taking off and landing, moving in different directions.

Thanks to such extraordinary durable tires, each flight becomes safer.