Sensation of atmospheric pressure

Pressure is force divided by area, and force is mass times acceleration.

Now, the newton [N] is the force needed to accelerate 1 kg by 1 m/s, and the kilogram-force [kgf] is the force needed to accelerate 1 kg by g m/s, where g is the standard gravity. The standard atmospheric pressure is set at 101325 Pa, which would translate to ~10333 kgf/m^2.

So why don't we all implode? What is missing from the picture?

• There is no kgf. kg is mass, and Newtons is force. Now, to answer the question: atmospheric pressure exists inside of you as well as outside of you, due to small amounts of atmospheric oxygen and nitrogen (the equilibrium amount, based on gas solubility in your blood and tissues) that exist inside of you. This means that the net atmospheric force on you is zero. – David White Dec 9 '16 at 0:14
• There was a kilogram-force. And thanks for mentioning solubility, that clears up a few things. – setun-90 Dec 9 '16 at 0:28
• For the most part kilogram-force is an thing in engineering where it is a convenience, not in physics were we have the luxury of insisting on making a strong distinction. – dmckee Dec 9 '16 at 1:47