017 Who turned off the pressure?

Pressure comes about because of gravitational pull on the liquid. If the fluid has no weight, then the fluid molecules will not be pressing against the bottom and sides of its container, and against one another.

On Earth, we can simulate zero gravity conditions in the cup simply by dropping it. When both the water and the cup are free falling together, the water stops pressing against the cup. The water basically “hovers” in the cup and  becomes “weightless”. NO WEIGHT, NO PRESSURE. This explains why the water stops leaking out through the hole once the cup is dropped.

Likewise, hydrostatic pressure does not exist in outer space, or at the International Space Station (ISS). In fact, water hovers in the air as water balls in zero-g conditions. (Click here for proof)


One thought on “017 Who turned off the pressure?

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s