How could people of ancient times be able to cut huge stones into separate pieces of ideal shape? Technology is not known for certain, but a number of scientists believe that they could well use sound.
The person on the record shows how you can influence the dense structure of the stone by sound. The result is amazing – if this, of course, is not editing.
In fact, the stone certainly does not melt, but rather is rubbed with vibration. Which, however, does not make the experiment less interesting.