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  • trboyden commented on Asier Marzo's instructable Acoustic Tractor Beam2 weeks ago
    Acoustic Tractor Beam

    Electric MagLev trains exist, so I understand and have done simple experiments with that concept, I just never heard of the same or similar being possible with acoustic waves. I am fascinated with the acoustic concept, and just wondering on the practical feasibility of it. I don't recall any public concept of flying cars through acoustic waves before. So I wouldn't think it would be anything but fantasy, unless this research proves otherwise. I fully admit that I am not scientifically literate enough to understand the concepts in the paper, so was looking more for a layman's response as to feasibility. Like, "yes, but it would require freaking huge transducers and a nuclear plant to power it."

    Electric MagLev trains exist, so I understand and have done simple experiments with that concept, I just never heard of the same or similar being possible with acoustic waves. I am fascinated with the acoustic concept, and just wondering on the practical feasibility of it. I don't recall any public concept of flying cars through acoustic waves before. So I wouldn't think it would be anything but fantasy, unless this research proves otherwise. I fully admit that I am not scientifically literate enough to understand the concepts in the paper, so was looking more for a layman's response as to feasibility. Like, "yes, but it would require freaking huge transducers and a nuclear plant to power it."

    Asier, is the science behind this applicable to levitating a vehicle, a la, electromagnetic levitation of trams, but with acoustic waves versus electromagnetic waves? I am thinking along the lines of the hover board as in the movie Back to the Future or a hovering car. Just curious as to the scale to which the principle could be applied. I am assuming the power requirements would be significant to levitate such a large object, such that are impractical with current power storage/supply devices.

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