Do you know something about physics experiment?about ';BEDS OF NAIL';?

how to explain that experiment?Do you know something about physics experiment?about ';BEDS OF NAIL';?
I actually just did this experiment at a local museum recently. Your weight is equally distributed over the ';bed of nails'; so that you don't give an individual nail more than the 2 lbs. (or a bit more depending on the clothing one is wearing) necessary that it takes a nail to pierce your skin.





It's an odd sensation because while you can feel the nails, they don't hurt...definitely something worth trying out if the opportunity arises.Do you know something about physics experiment?about ';BEDS OF NAIL';?
The purpose of the experiment is to demonstrate ';Distribution of Pressure'; or the physics of pressure; and the difference between pressure and force.


In this experiment, force is the weight of the mass pushing down on the nails. Pressure is of course, the force per unit area.





One can lie on the nail bed safely, because the weight is distributed over the entire nail bed. The pressure on each point is fairly small. You can even do calculations and impress your teacher.
The nails need a certain amount of pressure to puncture the skin, and when the nails are close enough together, they more evenly distribute the weight. So, with the distribution of weight present there can be no puncture wounds and little discomfort, given decent spacing.
I think that's when you put an object (maybe a body) over a large quantity of nails and it remains on top without injury because the weight is dispersed, however, if you u put this same object on 1 or a few nails, harm can be done.
drink chlorine for extensive periods of tim..it might hurt at first, but it is just normal*








P.S. if you r dum enough to do that then I accept no responsibilities for outcomes...for educational purpuses only ;)
as in why a person wont be stabed when they lie on a bed of nails?





well the answer to that is surface area and presure.





if you were to sit in one nail it would go into you because your weigth is placed on a small surface area (eg if i weighed 100kg and u sat on a nail the nail would poke you with a force of 100000kg/cm^2 (assuming the area of the tip of a nail is 0.1mm^2)





now with a bed of nails which contain 100000 nails the presure would be 0.1 kg/cm^2 (once again assuming the area of the tip of a nail is 0.1mm^2) this is very little thus you dont get hurt as a force like this wont penatrate the skin.
you weight gets so spreed out that you don't really feel the pressure of the nails... it evenly distributed