Recent content by Jay Lakoda

  1. J

    Understanding Holograms: How Do They Work?

    Lol, idk. I just would like someone to explain how holograms work.
  2. J

    Understanding Holograms: How Do They Work?

    I've read and watched countless educational articles/lectures/youtube vids/etc. And I still don't get it. What happens to the molecules in the holographic film to make it work? Are new molecules formed? Are electrons changing states? Or what? I don't understand how it works. Help please =/
  3. J

    Frequency modulated laser - transmission of voice

    If I modulated a laser frequency with voice, would a photo cell be capable of receiving that information?
  4. J

    Need suggestions on transfering compressed air to rotating object

    I was thinking about a tesla turbine to turn a wheel. Except that I was trying to think of how to make the discs double as spokes for the wheel. It could be done, but I just realized it would be very inefficient because the rpm of the wheel would only be about 100. And an air compressed tesla...
  5. J

    Need suggestions on transfering compressed air to rotating object

    If you had a rotating object like a tire or barrel that you wanted to distribute compressed air to while it's rotating, what would some ways to do it? One way I'm thinking is just a tight seal at the axis, but then there would be a lot of friction. Any other ideas??
  6. J

    Capturing Tiny Amounts Of Electricity At A Time?

    Lol. Ok. So a quiet dark corner in the closet is not the best place to find energy. I'll have think about some other design. Thanks for the responses and the entertaining discussion. Science is awesome.
  7. J

    Capturing Tiny Amounts Of Electricity At A Time?

    A solar cell is kinda like plan B. I would like the system to operate in any location, such as the bottom of the ocean, or in Antarctica where a solar cell would get almost no energy. Unless there are infrared solar cells. Do those exist?
  8. J

    Capturing Tiny Amounts Of Electricity At A Time?

    Here's what I'm trying to do... I don't yet have a reason or goal in mind. I'm trying to just learn more about building electronic systems. And I prefer to learn in an unconventional way. So right now I'm trying to develop a pointless, but fun and educational system. I want to litter a square...
  9. J

    Capturing Tiny Amounts Of Electricity At A Time?

    A small thermocouple would produce tiny amounts of electricity as temperature unevenly fluctuates. But if I tried to store that energy using a diode and capacitor, I would guess that the tiny reverse current flow through the diode would be enough to not allow for such a self charging system to...
  10. J

    Would a pure diamond drill bit ever get dull?

    So now is that probability of a displaced molecule because of quantum mechanical fluctuations, or is it something else?
  11. J

    Would a pure diamond drill bit ever get dull?

    I know that a ten foot diamond is not realistic. I was just using that as an example to better understand physics. I also know that practically speaking, a bit made with diamond dust is most practical. I'm just trying to understand the physics a bit better. And so I'm asking hypothetical...
  12. J

    Would a pure diamond drill bit ever get dull?

    Well, I imagine diamonds are usually fashioned with lasers. But I also realize that if you were to have a ten foot long drill bit made out of pure diamond, and you encased 5 feet of the bit in cement, and you applied enough torque to the other end, then you would snap the bit in half. But I'm...
  13. J

    Would a pure diamond drill bit ever get dull?

    If a drill bit that was cut out of a single large diamond were made, would it last forever, assuming it was never used to drill through diamond and was never exposed to a laser? Would it ever get dull or break?
  14. J

    Thermodynamics question about density

    Thanks for the replies. By "object" I just meant a clump of molecules in any arangement. Not necessarily a solid or a gas. I'm looking at it this way: molecules are bouncing around in object #1. The average speed of the molecules is its temperature, which is the same as object #2. But object #2...
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