Tuesday, June 28, 2022 – 10:15 p.m.
Science, the 3D printer as a global builder
An Oxford researcher researched
Rome, June 28 (askanews) – “The 3D printer as a universal constructor capable of reproducing any object and even itself.” Academy.
“The universal constructor is an idea born of the extremely creative mind of mathematics and physics John von Neumann,” explains the scientist at the Veronese Academy of Computer Graphics. In the 1950s, he created this kind of ideal machine for simulating the properties of living beings, because he realized that by observing a cell that was only reproducing, self-reproduction was physically allowed. Self-reproduction occurs daily in organisms, but is not permitted in the context of a Turing machine for the common computer.
“Then he invented the universal constructor. It’s called a constructor because you want to make some kind of paradox with the computer, so it’s an object that not only performs arithmetic, but can perform general transformations, given the raw materials and a program that describes what you want to produce. The universal constructor does it. He follows the instructions of this program step by step and builds the desired object. It must also be able to make a copy of itself, being in itself a potential object. The 3D printer is considered by John von Neumann to be a multifunctional 3D printer that can make its own copy if necessary.
So it is legitimate to ask ourselves at this point what the limits of such a machine are, that is, what things can be built. “The universal constructor is a very simple idea, but it is also very powerful. We can imagine, given the laws of physics, that the universal constructor is not able to create an accelerator of particles that will make them move faster than the speed of light, “explains Chiara Marlito.
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