Recent content by mengshuen

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    Chances of Getting into Caltech - Engineering Student

    Caltech and Stanford both don't offer interviews, unlike MIT, Princeton and Harvard. The interviews, however, don't test you on your understanding of high school/college material, but they're there to assess the fit of the applicant to the college. You need to take the subject tests of the SAT...
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    Chances of Getting into Caltech - Engineering Student

    Not graduate level work, but some form of research with a college professor.
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    Chances of Getting into Caltech - Engineering Student

    It should be fine if you have a very limited number of Bs outside of science-related subjects. That being said, the number of applicants being accepted by both Caltech and Stanford is a very small proportion, and you'd have to stand out from the typical applicant, by a) being truly brilliant b)...
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    Schools Help Finding College for Astrophysicist: GPA & Test Scores

    Astrophysics is usually a graduate field (i.e. PhD). To go onto astrophysics, Caltech, Princeton, Harvard, MIT and Stanford should be good choices. Grades and test scores should be as high as possible, i.e. >3.9 unweighted and >2200 SAT.
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    Reapply to Oxford, or just go to Imperial?

    woah don't say that of me. I still have a long way to go... Good luck with NS and your college selection!
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    Reapply to Oxford, or just go to Imperial?

    I see. Then keep Imperial's offer for Physics with Theoretical Physics! You'd have great opportunities after graduation in the states, no matter where you go (Imperial or Oxford). I'm Singaporean too!
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    Reapply to Oxford, or just go to Imperial?

    hey you sound like you're from Singapore... anyway, I would suggest that you accept imperial's offer, because there is not much you can do while in the army to change your application significantly for oxford. why not apply to to do physics undergrad in the US as well?
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    International Perspectives on Self-Service: Take Our Survey!

    hello to all at PF! As I understand that this is an international forum, I would like to post my group's survey here to gain an international perspective! It's about the self-service concept. Thanks for all your efforts! Have a nice day!
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    Calculating power of heating element

    If we were to view this from a different perspective, a high resistance means little current flow. By definition, current is defined as the rate of charge moving across the appliance, and having units of Cs^-1. If there is only a few Mr. Coulomb running in the circuit, little charge is...
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    Calculating power of heating element

    I'm following this argument. According to this logical argument, if there is low resistance, there will be a high power rating of the appliance. Power is defined as the rate in which electrical energy is transferred to another form. In the case of a short circuit, there is little to no...
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    Aircraft Design - Reynold's Number & Stalling Speed

    i see. lift is proportional to the square of the airspeed. p.s. what about in a wind tunnel? a supersonic wind tunnel? with a constant AoA?
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    Aircraft Design - Reynold's Number & Stalling Speed

    from a few sources on the net and in books, there is only one stalling speed, that is the lower speed that insufficient lift is generated to keep the aircraft in a level flight. assume the the AoA is 14 degrees, Rn 183 000, and the stall speed is at 24mph, for an airfoil. keeping the AoA at 14...
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    Aircraft Design - Reynold's Number & Stalling Speed

    thanks LURCH and janus. russ_watters: i understand what you are trying to put across, but if the speed is changed, the AoAcritical would change too, no? anyway i don't think any aircraft would hit the "highspeed stall" scenario, unless they are like supersonic? but that's a different story...
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    Aircraft Design - Reynold's Number & Stalling Speed

    at each Rn, there is a different (perhaps unique) AoAcritical for stalling right?
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    Aircraft Design - Reynold's Number & Stalling Speed

    hello all, i was reading up on aircraft design one fine day when they talked about landing speed; they have to be higher than one critical speed, the stalling speed. if i remember correctly, is there another stalling speed, the upper limit? reynold's number increases at increasing speed of...
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