Terrifying scenario if the Earth lost oxygen in 5 seconds?
oxygen plays an extremely important role in the earth's ecosystem, so its lack of just 5 seconds is enough to cause everything on this planet to be chaotic: every concrete building
Tags : air pressure
Why is there a small hole in the plastic seat, not another?
the plastic chair is so familiar with our daily lives. there is also a round hole in every chair, we still use it when we need to use a plastic chair, but not many people question
Harmless effect if sleeping when the aircraft took off and landed
sleeping when the plane takes off and landed, the body will not be able to balance the air pressure in the ear which can damage the ear.