Recent content by sdemjanenko

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    About how to prevent being struck by lightning

    if the car is struck by lightning then most likely the current will jump from one of the wheels to the ground via breaking down the air inbetween since it is the path of least resistance. It wouldn't enter the car.
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    Scanning Helium Ion Microscope

    i guess the main problem with a scanning helium ion microscope would be the extra mass of the ion compared to the election. It might end up causing damage to the sample.
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    The sun's gravitational pull on the earth

    would we even feel the "release" i mean as it is we are falling anyway. If there is no gravity we just feel like we are falling. So if we get released i don't think the Earth would react in any significant and disasterous way.
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    Space Exploration and its effect on the Earth's Oxygen supply: I have a question

    it isn't set in stone that we need to get oxygen from our planet. We could find it out in space somewhere and use that. Plus the number of space stations required to use that much oxygen would, if your forgive my bad pun, be astronomical
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    Would something like this be possible?

    it would create a shock wave, not unlike that in air. That wave would then move much slower than the speed of light. Possibly even taking years to get there.
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    Is it normal for 13-15 year olds to be doing early calculus?

    if you want a good physics book settle for physics for scientists and engineers, both titles are fine, serway is great as is fisbane
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    New Nature Paper: Old Ia Supernovae different?

    another explanation that i read was that the white dwarf could have had considerable angular velocity.
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    Is it normal for 13-15 year olds to be doing early calculus?

    concerning socialization, i don't hang out with friends too much, but that's because there are not a lot of people i find interesting. They are all talking about trivial matters, things that are not current, isn't news or intellectual related. I suppose getting into the right college is the...
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    Schools Undergrad Schools for Theoretical Physics, Engineering & Math

    So what are the best jesuit schools in terms of math and physics. I'm looking for a good safety cause I'm applying to a bunch of top tier, MIT and such. I believe a jesuit school would be easy enough to get into since i go to a jesuit high school. Canisius High School in buffalo, ny that is
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    Is it normal for 13-15 year olds to be doing early calculus?

    i was in the UB gifted math program and that's how i took the 2 semesters of discrete math in by 11th grade year. I also went to them saying i wanted to take calculus so they got me registered for the college, its SUNY at Buffalo. Anyway i took calc 1 last summer and calc2,3 last fall/spring...
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    Is it normal for 13-15 year olds to be doing early calculus?

    calculus is a great math, gives u a whole new perspective. I took calc 1-3 and diff eq besides 2 semesters of discrete math and a semester of linear algebra. Currently i am taking probability theory and I'm a senior in high school. Whatever keeps you from getting bored it worth it.
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    Exploring Electron Degenerate Matter

    The Runaway Universe might be good too. It talks of the white dwarf where the gravity pulls the matter so close that the only thing keeping it from collapsing is the uncertainty principle. As a result information cannot be transferred across the star too quickly which causes a SN1A when a...
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    Faster fluids have a lower pressure?

    its the same principle as what makes an airplane fly. The distance air must flow over the wing in greater than below, and since stiller air can give more of a perpendicular pressure, it outforces the pressure down from air flowing over at a higher speed and creates lift.
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    What Determines the Strength of Gravity and Electrostatic Forces?

    the reason why EM doesn't affect things over large distances in a very noticable manner like gravity is that all charged particles would then need the same charge and they would repel each other. This case happens in the nucleus, mainly why nuclei don't get much bigger than uranium, the strong...
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    Why We See Full Face of the Moon: Diffraction Theory?

    concerning diffraction, for a body to undergo diffraction it must be narrow. the Earth is not narrow. And while technically there is a diffraction, it is almost unnoticable. If you have ever done a double-slit interference lab, the slots are on the order of 10^-5 m to 10^-6 m in width across...
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