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JaKiri

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Everything posted by JaKiri

  1. JaKiri

    Doom3 Movie

    Neither do I, but that doesn't stop it being an abomination.
  2. As far as I know, you can't.
  3. I am a man of endless talent, obviously.
  4. That was dealing with Pure Newtonian stuff on the ground, as it were, and not taking anything else into account. A reply to a post in this thread, rather than the original post. Projectiles fired from the earth which come straight back again (eg, throwing a rock, firing a bullet, whatever) can be estimated to follow a parabola, at a reasonable level of accuracy. Earth orbits, as has been said, are ellipses; it is possible to have a circular orbit, but it's extremely unlikely.
  5. We have 80 nobel prize winners. http://www.cam.ac.uk/cambuniv/nobelprize.html In this university were discovered the structure of both the atom and DNA. In this university Gravity was discovered and the foundations of modern science laid. In this university were educated the creators of the computer: both Charles Babbage and Alan Turing. Charles Darwin was educated here, as were Lord Kelvin, James Maxwell, Herschel, Robert Oppenheimer, Frank Whittle, Francis Bacon, Bertrand Russell, Ludwig Wittgenstein, Alfred Tennyson, John Milton, Oliver Cromwell... the list goes on. [edit] That's University, obviously. To do city (Durham) would be a whole other post.
  6. If he tried, he's a failure.
  7. You don't actually need to know the weight you're dealing with. Resolving perp to plane: R = mg cos 20 Resolving // to plane, P being the resultant force down the slope: P = mg sin 20 - mu * R = mg sin 20 - 0.25 mg cos 20 = mg (sin 20 - 0.25 cos 20) = mg (THE ONE CALCULATION! 0.34 - 0.23 (2sf)) P > 0, therefore there is a resultant force down the slope, therefore the block will move (Newton II)
  8. JaKiri

    Doom3 Movie

    The 'Doom Movie' is an abomination unto the lord, although most people heard about this several weeks, and are now merely mocking the thing. There's a penny arcade strip from a while back that sums things up nicely. [edit] Although that strictly speaking isn't 'just your opinion', because it's a paraphrasing of the megagamers article.
  9. What exactly are you expecting? That because String Theory is the current vogue conjecture, that I come out all guns blazing in support of it? Physics is NOT DOGMATIC. Currently, String Theory and its variants are utterly worthless to us because they do not actually do anything. I have stated this many times, on this site and elsewhere, and to think that such an obvious contradiction would have escaped my attention is rather naive. The biggest difference, as I have said, is that there is a substantial body of evidence and mathematical framework that suggests the existance of gravitons. You also continue with the suggestion that science, and physics in particular, is dogmatic; new conjectures ignored as the researchers are blinded by the wisdom from the past. This could not be further from the truth; do you know how many distinct variations have existed, and been discarded as incorrect, in even the vogue conjecture, String Theory? Do you realise that, as soon as evidence (usually in the form of a repeatable experiment or measurement, as to reduce the chance for a freak occurance) contradicting a previously held scientific theory has been found, the hunt is on for something better, to replace the discarded legacy of former peers? The entire point of String Theory is to find something better to replace the Standard Model of Quantum Mechanics and the General Theory of Relativity, things developed by such small names as Einstein, Schroedinger and Bohr. Physics. Is. Not. Dogmatic. They are not guessing; all conjectures are based around the need for new theory to explain the deviations of results with old theory. Einstein didn't pick the basis for Special Relativity out of the air; he was building on the work of Michaelson, Morley and Lorentz, to name but three. A 'scientist' in isolation doesn't know more than the rest of us, but this is never the case; science is based upon the foundations of hundreds of years of experiment, conjecture and change. And, whilst it is true that some do focus on one conjecture at the expense of another, what problem does this create? Discarding an invalid model is 'good science', because it involves creating new or improved experiments to test the validity of the new conjecture. They don't know if they're right, but they know that the only way to know for sure is to test it: for this is the basis of the sciences.
  10. No advertising.
  11. Ah, yes, that's quite possible. It doesn't explain what's going on here: g/(2Vo^2cos^2(theta)) though.
  12. The sheer number of possible interactions make the perfection of the circular orbit or the parabolic curve unlikely, although not impossible. Whether your model predicts that or not is dependent on how much you factor in, of course. By and large we end up with elliptical or hyperbolic orbits.
  13. This post will be fair, factual, but it also may contain things that people may find mean or distasteful. You think those two statements may be linked? That's a fairly shallow outlook on life; if you have to work, life won't be worth living? (I know that is, to some extent, a trivialisation, but the fact of the matter remains) Female circumcision no longer goes on in the western world, and it is unbelieveably oversimplistic to believe that only Jewish people get circumcised. I know of people in this country (England) who are circumcised, who aren't jewish. Another counter-example is the United States; doctors regularly perform circumcision, yet the majority of doctors aren't jewish, and neither are the majority of the patients. There's also some discussion over the cause of the Jewish tradition of circumcision; it has proven health benefits, and Judaism may have implemented it for those reasons. Unfortunately, it seems unlikely to have this conjecture proved or refuted. That's a fatally flawed argument. Just because it's something that many people fail at, or ignore, doesn't mean it's any more irrational than other emotional interactions. The high divorce rate can show two things: that some people are inherently unsuited to monogamy, or that some partnerships haven't had the underlying mental or physical sacrifices required for a relationship of that kind. There are enormous numbers of successful monogamous partnerships, and your decrying of this situation as 'irrational' is unjustified at best. A rather overreactive backlash, there. Why do people in monogamous relationships deserve their partner cheating on them? Are you saying that we should not trust anyone (for this is obviously a question of trust) and, if any person proves to be unreliable, following on from or despite previous evidence, it is the truster's fault for giving them responsability in the first place? That is no way to run a society. Furthermore, 'In my opinion' is terrible justification for an argument. I can say that I believe that open relationships are bad because everyone in them goes around hitting llamas with sticks. That doesn't make it true, and, if there is anecdotal evidence for this, the sample size is so small as to make the statement invalid in any case. There is ignorance and stupidity everywhere, that much is certain. However, it seems strange to base a system of morality upon this premise, and, indeed, make good and evil mutually exclusive with the aforementioned traits. It is fairly clear that there is no absolute morality; however, going by the basis of most moral codes (the rights of the individual) it is fairly easy to say that, for the majority of major moral codes, the actions of x group or individual disobey those codes. You're describing a system of Lamarckist evolution, which has been proven not to take place. Furthermore, your argument appears immensely shallow; on the grand scheme of things, especially from the point of view of the species as a whole, noone cares about the sex life of the individual. You're also proposing a system referred to as 'Sins of the Father'; why should an individual deserve to suffer for actions which they had no say in? Whilst it is clearly the case that men are not created equal, it should be a duty of society to reduce the impact of the differences as much as it can, by means such as a national health service, or social security. A meaningless statement; either everything is the product of evolution or nothing is. And today people kill for other things; I'd argue that Christianity itself didn't per se have anything to do with, say, the Spanish Inquisition; the Old and New Testament lie down very clear rules on killing (Vengence is mine, sayeth the lord. Mine, not yours.) and yet they are continually disobeyed; the religious wars were, by and large, political, rather than religious; the Crusades was political, the wars in Europe in the 16th and 17th centuries were political. Furthermore, it seems likely that the peoples delving into human sacrifice (as it were) were merely practicing their own, small, brand of science; they had no way of measuring things such as air pressure, or following cloud formations by satellite; it seemed logical to them that, in the same way that they control their microenvironment, some larger power controls the metaenvironment. If human sacrifice has worked in the past, who is to say that it won't work again? There's the obvious logical flaw of post hoc ergo propter hoc, of course, but we're on the outside looking in, with much more knowledge. People still believe a lot of things. It requires less thought to believe in a god, than to comprehend the more advanced scientific theories, and the evidence and philosophy that gave rise to them. Better education would surely be the answer, were the populations of most democratic states not religious themselves. To deny religion is to lose the almighty vote. Really? The argument I've heard more often (in non-localised discussions) is that god was the impetus behind evolution, not that it is to be denied. To deny evolution is to deny the empiric method, to deny science itself. Again, you're being contradictory; the application of religion to the discoveries of science are as an attempt to offer an explanation, so if you decry this you must also decry other investigative attempts; this is utterly contradicted by your initial statements on tradition, and your ones in this section on the subject of an ill-educated society. This is amazingly contradictory; on the one hand you discard god because you cannot directly experience god, but then you support assertions with the same problems. Noone has experienced life from off this planet, Buddhism has as much evidence for it as the religions you have chosen to decry, and string theory... Can you see an atom? Can you see Heisenberg's Uncertainty Principle, or its results? Can you see the disagreement between the standard model of quantum physics and general relativity? Of course you can't; you can attempt to derive explanations to phenomena you have observed experimentally, but this kind of experimental empiricism remains bound by its apparatus; the only reason we know atoms to exist is that we postulated for the solution to a problem, in much the same way as many people find religion. Partially this is due to the target group wanting a 'quick fix'; social factors cause this to be endemic on both sides of the doctor/patient divide, unfortunately. I'd go even further than that; most psychoanalytical knowledge (especially that based of Freud) is just plain wrong. Of course, the reason that they can charge so much is generally a social one; never underestimate the hypocondria of society (particularly, american society) and, as before, the desire for a quick fix. The american dream isn't all it's cracked up to be. That's mainly a question of efficiency. The amount of time and effort required to do the latter course of action, although better, is judged to be not worth it. This of course varies from doctor to doctor; it has to be remembered that doctors aren't superhuman, they have varying levels of motivation and interest, just like the rest of us. Sad, but true. I both agree and disagree. Morally, a person should have the right to take their own life. However, it's fairly obvious that a person with some sort of psychiatric disorder is not acting rationally; I know a fellow who has bi-polar disorder, and, whilst he can feel suicidal fairly regularly, he always regrets it afterwards. I'm not sure what you're trying to say here. Geneticists, on the whole, don't think eugenics is a bad idea. It's the general populace being biased with its association with national socialism. Of course, eugenics has gone on for centuries; less so in people, but definitely in livestock and crops. However, this I disagree with. Morally, there is no difference between a buffoon and a genius, and, whilst one is intellectually preferable, there is no essential difference between them. Some said that, of course, I won't deny that, but, like most predictiors, they were wrong. They only got publicity because of the outlandish nature of their claims; noone wants to hear from the silent majority. This is true in all things; the dot com bubble, going to jupiter by 2001... We have advanced in leaps and bounds, but in unexpected directions. Absolute tosh. Every single aspect of computer games has improved in the last decade. Graphics have improved. Game play has become more intricate, more based in reality. Immersivity and story telling have both gained some excellent champions. How can you call Half Life 2 juevenile crap? Planescape: Torment? Rise of Nations? Of course, these are all PC games, but PC games have ALWAYS tended to be more intricate, more 'adult'. This was true a decade ago as it is now; Civilization was released in 1991 for the PC; what console game of the time had its complexity, its depth? That's not to say console games are entirely lacking in these features; for example, I hear good things about Eternal Darkness: Sanity's Requiem on the Nintendo Gamecube. Every generation of video game players has had people longing for the golden days of yesteryear, but that's an extremely rose-tinted view. Every system had multitudes of forgotten failures. I can probably name 100 truly excellent NES games; what I don't remember are the thousands of terrible or mediocre ones that were released alongside them. FMV 'games' are one of the least immersive things I can think of; where's the realism of such a limited amount of interactivity? If you want a 'realistic virtual world', try something like Half Life 2, or, if you desire something less linear, an RPG such as Morrowind or Vampire: The Masquerade: Bloodlines. Have you heard of these games? Have you played them? Yeah, The Matrix made me feel depressed too. Sweet Jesus. I haven't spent that much money in my life. Because it's in development. Assuming the technology isn't limited in a multitude of ways (like all the things they are using at the moment are), as soon as the technology becomes available, it will be used. YOU might. Not many others would, so we're lacking economic impetus. They can, but in small numbers; remember the technology is still EXCEPTIONALLY young, and that's ignoring other problems; computer games, even the successful ones, are by and large fractured affairs; 'action' can happen all over the place, and there isn't a single focus for the game, like there is in football, say. As for the rest of that example: where's the economic impetus? It's outrageously expensive for little guaranteed return. YOU would. Again, the economics are all out of wack. Ignoring the impossibility of a computer program being per se a 'sexual partner' (something you have mentioned twice now without any real reason), this is either extremely unlikely or already happening. If you mean the limited response style thangs that tend to come out of Japan, then you're set. If you mean True AI, then no chance. No chance at all. A fair enough pipe dream, but utterly implausable at current levels of technology. It would require, simultaneously, a much greater level of processing power, engineering and understanding of the workings of the brain that we current have. MUCH greater. I'm not sure where this came from, or if it would work; that's not really something we can examine at the current time. I think this is an oversimplification, because, ignoring everything else, there are some problems we simply cannot solve. That's contradictory with your last statement; if we're all connected, then why is 'misery' the only thing that's isolated to the individual? Most medical doctors DO realise that biological or chemical treatment is inferior to a more holistic medicine, but we come back again to the problem of economics; there simply aren't enough doctors to provide this. Of course, that's ignoring that, for many things, there is a pill or a serum which can cure the ill; it is true for diseases and infections, and, believe it or not, it can be true for depression and the like; frequently, true sufferers from depression do not have their deepest problems sparked off by some catastrophic event, but something so otherwise insignificant that it seems an impossible cause for such a great reaction in a person. As the problem is neural chemistry, it's something we can treat with our tiny agents of change. Again, with the contradictory statements. Nigh on all ethical systems are based around making life better for human beings (in whatever fashion). Nice words, but meaningless. 'Speed up the process of evolution'? This shows either a basic misunderstanding of how evolution operates or a desire for style over substance in writing. Evolution is not a change to a more advanced creature, but a tendency to change to one which can exist more efficiently in its situation. This could mean an increase in brain power, or a decrease. It depends on the change in circumstances. What ideology is this? Assuming no problems with the freedom of other individuals, no way of living is per se worse or better than another, just as the way one uses one's brain is cannot per se be wrong. Emotions are also what drive us to greater things; to remove them is to remove the impetus for improvement.
  14. Only in a frictionless environment. If we draw a free body diagram... (click to enlarge) R is the normal reaction from the man's hand. mg is the gravity. Fa is the friction from the air (and other assorted things on the book) Fm is the friction from the man's hand. Since the book is not accelerating, R=mg and Fa=Fm. This means that the work being done by the man is equal to the retardive forces on the book multiplied by the distance carried. NB: This doesn't take into account actual biology. For the purpose of that result, we needed to assume that the man (and his hand) was a rigid body, which is not the case. As is fairly obvious, the body has pivots in, and to get the complete answer (which is unbelieveably complicated) we'd need to know things like resistance in motion of a wrist joint, and the efficiency of the man's muscles, as he works to counteract the moment.
  15. Whilst the general post is correct, the maths most definitely isn't. Impulse = Int F dt (which, in simple cases, comes out as Ft), but mv is NOT THE IMPULSE. It is the momentum, and impulse = d(mv)/dt.
  16. Before criticising, please READ THE QUESTION.
  17. It's all to do with assumptions and modelling. If you don't travel very far along the earth's surface, you can assume (without too much error) that the gravitational force is pulling in a constant direction, and at a constant rate. This basically assumes that the earth is flat. If you remember that the earth is curved, then you have to deal with the fact that, not only does the magnitude of the gravitational attraction change, but so to does the direction. http://img13.paintedover.com/uploads/13/physicsho.jpg Obviously the 2nd fight path is... inaccurate, but the rest of it's about right.
  18. Ding ding ding.
  19. Justify this statement please. I'm not sure what this means, if anything. Aside from you meaning base 2 (not 1), this remains a property of computers, and, in particular, bits. Not people. Computers. I don't really see how that's an advantage, and, ironically given you said that it makes it rounder, is true of all square numbers, and only all square numbers. 10 is divisible by more prime numbers than 16 (2 rather than 1), and therefore ends up with fewer infinite fractions.
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