LOL no particles were harmed in the making of this experiment - NOT!
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Where did the comets get their water from ?Hydrogen is the most common element in the known universe (excluding unknowns like Dark Matter). It originated in the Big Bang.
conventional theory says Neutron stars are extremely compact because the space inside an atom is mostly made from space an it is that what is compressedThe nucleus of an atoms has the protons and neutrons so close they are effectively touching.
this element ... has such a strong magnetic pullMagnetic fields from an atom can be produced by unpaired electrons, or unpaired nucleons (protons or neutrons).
The universe has been expanding quite a bit over those 14 billion years.
You're quite wrong on the size of the visible universe. The diameter of the visible universe is 93 billion light years.
How did you get that figure? The universe is something like 14 billion years old (assuming the big bang theory is right) so light can only at best have traveled 14 billion light years. Call that a radius and you get a diameter of something like 28 Billion light years.
Quote from: jeffreyHThe dark matter distribution in galaxies is not uniform. The density appears to increase with radial distance from the galactic cetre. This runs counter to the idea that black holes are made of dark matter.Why? Is that because you're assuming a uniform distribution of black holes? If so then I'd agree. Nice catch by the way. What I find strange to begin with is that the distribution isn't uniform. This is probably a clue as to the nature of dark matter.
Every year you become noticeably better and better at physics. It's a pleasure and an honor to watch you and others here learn.
Without knowing what was the spark of life on Earth, (assuming life started here and wasn’t transferred from someplace else) can we really surmise it ever happened a second time in the Universe?Without knowing what was the spark of life on Earth, can we really surmise it didn't happen a second time in the Universe?
Is there a possible anti-matter periodic table?Yes there is, but with current techniques it takes an enormous amount of energy to produce anti-protons, then slow them down enough to combine with anti-electrons to form anti-hydrogen.
OH! really you are stating your opinion as if it were factual, you do not know if the universe has an edge or not and until you do it is just at best speculation on your part?Actually, I agree with him. In his defense he did say "according to theory", which is a pretty accurate statement as far as I know. Further, he might been better off saying that the comment was over-reaching in its implication rather than flat-out wrong, but again I agree with him. Almost any analogy can work in-so-far as its intended breadth and depth; however, any analogy can be extended beyond the original intent of the person who made the analogy, and in this extension become false or outright ridiculous. This is a common structure for an argument similar to reductio ad absurdum arguments. "Well if electricity works like water... I should be able to swim in it... but I can't, so therefore this analogy is flawed." This is a classic example of an analogy simply being taken much too far. The most basic principles of electricity do very much resemble water as all the basic components are there. Pressure to voltage, current to rate of flow, resistance to resistance, etc... but even this analogy breaks down past a certain point.
...... If I have it straight, this is simply saying that a wave's speed is dependent on the properties of the medium in which it travels and not on the speed of the craft that caused it......I've moved this from the other thread as it might get caught up in acrimonious posts.