The Extreme Precision of Physical Constants Unless the force electromagnetism takes on a particular value, molecules won’t happen. Take the nucleus of an atom. There’s an electron orbiting that nucleus. If the force electromagnetism is too weak, the electron will not orbit the nucleus. Electromagnetism There won’t be sufficient electromagnetic pull to keep that electron orbiting the nucleus. If electrons cannot orbit nuclei, then electrons cannot be shared so that nuclei can come together to form molecules. Without molecules, we have no life. If the force electromagnetism is too strong, the nuclei will hang onto their electrons with such strength that the electrons will not be shared with adjoining nuclei and again, molecules will never form. Unless the force electromagnetism is fine-tuned to a particular value, the universe will have no molecules and no life. Strong Nuclear Force We also have a problem in getting the right atoms. Now take a neutron and a proton. Protons and neutrons are held together in the nucleus of an atom by the strong nuclear force, which is the strongest of the four forces of physics. If the nuclear force is too strong, the protons and neutrons in the universe will find themselves stuck to other protons and neutrons, which means we have a universe devoid of Hydrogen. Hydrogen is the element composed of the bachelor proton. Without Hydrogen, there’s no life chemistry. It’s impossible to conceive of life chemistry without Hydrogen. On the other hand, if we make the nuclear force slightly weaker, none of the protons and neutrons will stick together. All of the protons and neutrons will be bachelors, in which case the only element that would exist in the universe would be Hydrogen, and it’s impossible to make life if all we’ve got is Hydrogen. How sensitive must this strong nuclear force be designed for life to exist? It’s so sensitive that if we were to make this force 3/10 of 1% stronger or 2% weaker, life would be impossible at any time in the universe. Mass of the Proton and Neutron We also have a problem with the protons and the neutrons themselves. The neutron is 0.138% more massive than the proton. Because of this, it takes a little more energy for the universe to make neutrons, as compared to protons. That’s why in the universe of today we have seven times as many protons as neutrons. If the neutron were 1/10th of 1% less massive than what we observe, then the universe would make so many neutrons that all of the matter in the universe would very quickly collapse into neutron stars and black holes, and life would be impossible. If we made the neutron 1/10th of 1% more massive than what we observe, then the universe would make so few neutrons, that there wouldn’t be enough neutrons to make Carbon, Oxygen, Nitrogen, Phosphorus, Potassium, etc. These are the elements that are essential for life. So, we must delicately balance that mass to within 1/10 th of 1%, or life is impossible. Electrons With electrons we see an even more sense of the balance. In order for life to exist in the universe, the force of gravity must be 10,000,000,000,000,000,000,000,000,000,000,000,000,000 (10 to the 40th power) times weaker than the force of electromagnetism. It’s essential that the force of gravity be incredibly weak compared to the other three forces of physics. Gravity Yet planets, stars and galaxies will not form unless gravity is dominant in the universe, so the universe must be set up in such a way that the other forces of physics cancel out and leave gravity, the weakest of the forces, dominant. It’s necessary for the universe to be electrically neutral. The numbers of the positively charged particles must be equivalent to the numbers of negatively charged particles or else electromagnetism will dominate gravity, and stars, galaxies and planets will never form. If they don’t form, then clearly life is impossible. The numbers of electrons must equal the numbers of protons to better than one part of 10,000,000,000,000,000,000,000,000,000,000,000,000 (10 to the 37 th power). cosmicfingerprints > New Info > Extreme Precision.
Posted on: Wed, 28 Aug 2013 00:05:37 +0000
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