Since the air pressure outside the can is stronger than that ... As the hot steam cools and condenses to water, a vacuum is created inside the can and atmospheric pressure will crush it. 250 ml water ...

How can we explain this ... inside us exert an internal pressure equal to that of the surrounding air, which helps maintain equilibrium and prevents us from being crushed. This subtle interaction ...

We are not crushed by air pressure because "our bodies have evolved ... This balancing of forces only happens if air can reach all sides of your body. If you push a vacuum cleaner's nozzle against ...