Recent content by Aeroslicer821

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    Undergrad How to calculate radius of curvature of beam?

    If I start out with a flat beam of length a and then I fix one side and then bend the other side up to form an arc with height h, is that enough information to determine the radius of curvature of the bent beam? If so, how would I do it? Thanks...
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    Intuition for positive, negative, and ground voltage

    Can anyone help me develop some insight as to what positive and negative voltage means? I've heard of the analogy to water flowing where amps are viewed as units of water flowing through a certain point per unit time and volts are viewed as how high the water is flowing downwards to the...
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    Undergrad Electrons and holes: how can holes have a mass?

    Lets say you have a classroom of 100 chairs and 99 people, so that there is one empty chair. You can track the movement of the 99 people to see how the chairs are being filled and from there derive their equations of motion. Rather than go the many body approach to tracking 99 different people...
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    Graduate What does it mean for a plasmon to confine or guide light?

    I'm trying to grasp the basic concepts of plasmons and can't quite picture what is going on. When light is incident on small metal nanoparticles, it causes the conduction electrons of the metal to oscillate at the frequency of the photon. Is that a plasmon? Is that also the same as it...
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    Graduate Why the surface plasmon always use gold or silver as a metal film?

    I believe it has to do with the dielectric properties of the interface between gold/silver and air. Also, keep in mind that gold/silver is only used for visible light frequencies.
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    Possible to charge a battery pack with a lower voltage source?

    I'm working on a project that has a 7.4v rechargeable battery pack and I am going to recharge the pack with a solar cell. If the solar cell is only capable of outputing no more than about 2v, is it at all possible to charge the battery pack? Thanks!