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Everything posted by Strange
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Which part of that is like Hubble's law?
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Claims require evidence: Wild Cobra Edition
Strange replied to John Cuthber's topic in Suggestions, Comments and Support
So not "threatening the consensus" then. Why do you feel the need to play the martyr, instead of discussing the science? -
BB particle stabilisation
Strange replied to GeneralDadmission's topic in Modern and Theoretical Physics
Nowhere near enough energy. -
The truth is, we know quite a lot and never claim we know everything. The trouble is you make claims like "the big bang is wrong" then when things are explained and evidence presented you appear to accept it. And then a few days later you start another thread saying "the big bang is wrong". You have done this at least three times. And you wonder why people are hostile? How about, instead, using your God-given brain to learn something about the subject.
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I think it is also only true for massless force carriers. (I don't really know why; I assume because they follow null geodesics.)
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That is very droll. I assume you don't know who Feynman is? We know exactly how to produce it (with mass, energy, momentum, pressure or acceleration). It is not a wave. (Although there are gravitational waves.)
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You have no calculations that support that claim. That doesn't require proof. It is blindingly obvious. This is an incorrect assumption. Stars move in and out of the spiral arms. Except we know (from observing the movements and velocities of stars) that it isn't like a rigid disk. Which they don't. As your initial assumptions are false, your conclusion is also false.
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And Northern Ireland (in the past, mainly). And Israel-Palestine. And Boko-Haram in Nigeria. All great examples of spirituality and calmness. Which all comes back to favouring personal opinion and imagination.
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Because you reject evidence and theory in favour of personal opinion and imagination.
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Milky way galaxy mass vs. black hole mass
Strange replied to David Levy's topic in Astronomy and Cosmology
I don't think anyone will argue with this. (Despite your rather hand-waving derivation.) Reading this again, it isn't clear that this is true. The total mass contributing to the inward gravitational force will increase as you go further out but this is offset by the increasing distance. So without some calculations from actual data, it isn't clear whether the force increases, decreases or stays the same. And the mass of stars inside the orbit increases (roughly) as r cubed at the center of the galaxy and then moves closer to r squared as you move through the disk. -
True. But this doesn't tell us by how much the velocity should increase with distance.
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Milky way galaxy mass vs. black hole mass
Strange replied to David Levy's topic in Astronomy and Cosmology
I don't think anyone will argue with this. (Despite your rather hand-waving derivation.) However, because you haven't done any calculations, you can't say anything about how much the gravitational force increases with distance. So your conclusion is correct but not very useful. -
i need a help about understanding evolution
Strange replied to james bond's topic in Evolution, Morphology and Exobiology
If I understand, this is the difference between: 1. How much of our genetic material is common (about 98%) - i.e. how different the whole genome is. 2. Where genes vary, how much difference there is between a specific gene in humans and the equivalent gene in other apes (40%) - i.e. how different an individual gene is. Is that roughly it? -
An intuitive explanation is: Imagine light spreading out from a point. It illuminates a sphere. If you double the radius then the area increases by a factor of 4 (area = 4 pi r2) so the brightness is 1/4. In other words, the amount of light at any distance is proprtional to 1/r2. Actually, it isn't universal. The weak force, for example, falls off much more rapidly.
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i need a help about understanding evolution
Strange replied to james bond's topic in Evolution, Morphology and Exobiology
It doesn't. We know evolution happens, we see it all around us. That is just a fact. This (and all the other scientific evidence does) explains how it works. Sorry, I don't know enough about genetics to answer that. -
There is a whole Wikipedia page on this. Apparently some people write 2 in a way that could be confused with Q. https://en.wikipedia.org/wiki/Regional_handwriting_variation
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In hardware, subtraction is normally done in the ALU by using an adder and negating the input to be subtracted. As most computers use 2s-complement to represent negative numbers, negating a number means inverting all the bits (easy) and then adding 1. To avoid a separate addition step, the ALU inverts the input to the adder and feeds in an extra 1 to the low order bit. This allows the negation and addition to be done at the same time. (Having the ability to feed in a 1 also makes it easy to use the adder iteratively to work on longer numbers - the carry out of one iteration is fed in to the next.)
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Nice.
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Well, it isn't about saying the big bang theory is wrong, as you seem to think. (It is hard to know what you think as you answer every question with meaningless statements about the piano between your ears.)
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No. The Higgs mechanism explains the masses of (some) particles. If it turns out to be useful in explaining inflation then that is a bonus.
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Incomprehensible.
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i need a help about understanding evolution
Strange replied to james bond's topic in Evolution, Morphology and Exobiology
Not really. Are you asking why they have different numbers for the amount of difference between humans and other apes? If so then the answer is that they are all measuring different things. If someone asked "How much difference is there between America and Britain?" you could answer in terms of the area of the countries or the population (very different) or the language (very similar) or the number of dogs or ... "Difference between human and apes" is equally vague and can be measured in different ways to get different answers. However, whatever measure you use, you will find that the similarity between the DNA is related to how closely related the animals are. So the DNA can be used to recreate the "family tree" of animals. This shows how they are descended from earlier animals. Which is the same as we see by looking at living animals and fossils. Evolution is an indisputable fact. The theory of evolution just explains how it happens.