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ANU Scientists create a Tractor Beam on water [video]

• dang 12y ago
  Url changed from http://www.engadget.com/2014/08/11/tractor-beam-for-water/ http://www.engadget.com/2014/08/11/tractor-beam-for-water/, which points to this.
  • ChuckMcM 12y ago
    The new URL doesn't work though. Looking to find the typo. Ah here it is: http://www.anu.edu/vision/videos/12091/ http://www.anu.edu/vision/videos/12091/ (no edu.au at the end)
    • dang 12y ago
      Weird; that one worked for me. However, the other one works too, so I changed it. Thanks!
• gilgoomesh 12y ago
  Great, now do the same trick with sound pressure waves in air!
  • justinpombrio 12y ago
    I bet that would make a deep rhythmic noise as it operated.
  • jonmrodriguez 12y ago
    That's been done too! (different lab) https://www.youtube.com/watch?v=odJxJRAxdFU https://www.youtube.com/watch?v=odJxJRAxdFU
  • incomethax 12y ago
    What about gravity waves in spacetime? Now you're getting into star trek technology.
• jglauche 12y ago
  So, uhm, where is the beam?
• sycren 12y ago
  How will this work in an unfixed domain? A domain with no walls, as some of their visualisations seem to use the walls to generate the field.
• fblp 12y ago
  The key thing about this is that objects can be pulled towards the device, rather than pushed away.
• hvs 12y ago
  I thought rip currents (known popularly as rip "tides") were pretty well understood, and it has nothing to do with this "tractor beam" effect: http://en.wikipedia.org/wiki/Rip_current http://en.wikipedia.org/wiki/Rip_current