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JohnStu

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Everything posted by JohnStu

  1. I happen to know, not realize. And I also know that Venus and Mars do have magnets in them, just no strong magnetic field on the surface, or really weak. yes a hammer and a feather fall at the same rate on the moon, but if the moon was a giant magnet, hammer would fall much faster than the feather. The gravity formula for planetory motion is for these planest in the solar system, not ambiguious cases. They are also used to calculate cycles and orbit, and gravity from them from a long distance. Any object nearby uses a different formula that involves intergal. That's what I read 3 years ago somewhere on Wikipedia.
  2. One thing I want to add to enhance the definition of gravity is that: the gravity affecting planets in the real world (not on paper) is sum of multiple forces. There is gravity yes, then there is magnetism force involved. If moon was south pole iron right now it would behave completely different than now. And, yes additional tiny forces add up to the resultant sum, which is gravity.
  3. Selfishness or the behaviour of selfish is not a gene itself, but result of many genees. Anything that is personality, it is not didcted by A gene, but rather result of many genes. That's my input
  4. You mean quick, concise, to the point. Not tedious and loopy. How do you know if I been on this site for such a short period of time. I been on the other science forum for ages. Also, I been extremely accurate, but brief.
  5. What I said is not wrong, just not fit your method. You guys probably misinterpret my actual age.
  6. Oh, so it's weakness that kills me, which is caused by aging. That means mercury doesn't kill me, it's my incapability to adapt to mercury.
  7. I grew to 6'2 through years of sports. I don't mean lift weights or manual labor, I mean sports. Like skydiving to work or pulling the earth up, stuff like that. Jokes aside, I drank milk regularly, never got sick, visit the parks often and run around like a crazed werewolf. Also, pretend the couch and TV never exist. Stay close to nature and oxygen and hope for the best I've seen many people whose parents are shorter, and people whose parents are taller, so it is not completely genetics.
  8. Man is this post derailed. There is a universal frame of reference just that they don't have an accurate one yet.
  9. "weaker" not weakest. Weaker of the other two forces.
  10. Launching a rocket on a planet is like firing an arrow on a moving ship. The arrow gets the velocity of moving ship added to it before launch.
  11. That depends on your definition of weak. Also, I never said magnetisum is weaker than gravity. Never.
  12. Aging is a process, not a disease lol. Disease is caused by misfunctions and/or bacterias/viruses etc.. To eliminate aging, the process, is not possible since I mean most parts of the bones cannot be reversed or healed. Bones don't grow back once cracked up. And they have limited time span too, so bones aren't permanent. This makes the person not permanent. Except me, of course, I am made up of silicons and metals.
  13. The question is invalid, a lot of plants aren't green at all.
  14. Yes, but you are still at that speed, which is not even close to 1% of light speed
  15. The pain you are feeling is a mental one, based off of many logics and memories. So I don't think it can be physically neglected. To ignore such pain, one has to change perspective/opinion. Pain caused by brain imagery/scenario is different from physical pain.
  16. I see kamikaze as result of brain signals has overide naturel physical responses. The person conducting kamikaze knows (or thinks) that doing this is better for its cause than to back down. It's been tested that little brained animals are much less sensitive to logic. the smile of dung could completely change their mind/opinion on certain substance, where as humans, they see the dung and examines the situations, measure the gains/losses of each possiblities and actually physically ignore the "nerve signals" and go for the brain instructions.
  17. Are you talking about understanding of the structure of the brain or the psychology of humans? I think studying the structure of the brain first would help studying the psychologies of humans later on. Well, psychology is more like a result of years of brain activity. So I guess studying children or fetuses or other animals' brain would do better.
  18. That is because of 1/d squared. Put the entire planet as a tiny ball and put it next to the magnet.
  19. Galaxies are too far apart to have any influence on one another. They more so float on their own than spin around something in a group.
  20. Total gravity would be a positive value if going scalar. Total gravity of a "perfect" system would be 0 vector-wise. (i am being brief)
  21. Whoa easy there, radioactive substances give off invisible (to eye) death rays!
  22. I don't get why C is constant either. Someone enlighten me, please!
  23. Hmm, I have much on my mind but I will be brief, since this is just font reply, not voice reply, much data would be lost anyways. I think the causer of your obstacle is mostly an unethusiastic environment and a teacher who is not really qualified to be teaching computer science. Yes, programming is hard, espeically when you get into those high tech stuff like directX lighting and ambient lighting and stuff like that. Exposure, brightness, contrast, glow effects, etc.. But that's just one area of computer science. I suggest you google some good books on SIMPLE GAME DESIGN, where they teach you how to make your own Snake, math question games, which I have done so when I was young. Through making these projects, one can understand the logics better and become more interested. Having a good classmate that always share knowledge with you on this subject would help to make it more interesting. Computer science does kind've require a huge investment of your brain (memory rooms). Everyone finds it hard I guess, if it werne't so hard, it would be something everyone could do. Coding languages, though called language, it is not like English where you almost know what the words means. One has to look behind the meaning of the names for coding langauges to master it. For example, the for loop in coding languages is not FOR something u know what I mean, it is a ticker, it ticks from a value to another value for every increment. The while loops is a similar ticker, but operates under condition rather than increment. I suggest finding good programming books that show you how to program simple software such as bank software, Conwall's game of life.
  24. Whenever something speed up, they usually heat up, not due to the friction of air at high speed but due to the processes that speed up something usually cause tremendous energy aborbtion increasing the unstability of the molecule. Weak bonded molecule like liquids will turn into gas at high temperature. Also at high speed, matters break up on their own even at cold temperature due to massive changes in the behavior of electrons. Atoms in those molecules start losing "charges" of a sudden. The speed I am talking about here is speed relative to complete stillness. High speed, like 800km per second, not 80 km per hour. This has been a brief answer it's a complicated topic that could have a book written on.
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