There was an interesting question. If an iron ball weighing 10 kg is put into the sea, will it be deformed by compression? Many people have different understandings of this problem. Some people think that the ocean depth of the earth can reach tens of thousands of meters, while the iron ball is only 10 kg, so it is impossible to sink to the bottom of the sea. In addition, the density of the whole iron ball is very high. I believe that the seawater pressure is not enough to crush the iron ball to deformation, but some netizens think that if the iron ball really sinks to the bottom of the sea100000 meters, the iron ball will definitely be crushed to deformation.
So what is the correct answer? First of all, we should know that iron balls can sink to the bottom of the sea, because the density of iron balls is very high, and the density of seawater is much smaller than that of iron balls. In this case, the gravity of the iron ball is always greater than the buoyancy of the sea, and no matter how deep the sea is, the iron ball will sink into the sea. Then the question is, will the iron ball that sinks into the seabed be deformed because of the particularly strong water pressure? The answer is definitely yes.
But the degree of this extrusion deformation is so small that we can hardly see it with the naked eye. If the solid ball sinks into the Mariana Trench, the surface of the solid ball will bear the weight of 726 tons. If it were an ordinary object, it would have been crushed into powder. However, the density of iron balls is very high, and the iron balls are solid, and the stress around them is very uniform. Even in the face of such a high tonnage pressure, the iron ball will not change significantly. Of course, if this iron ball was replaced by a hollow iron ball, then this iron ball would have been crushed and deformed.