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Can a tractor beam be made? Yes!

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    Can a tractor beam be made? Yes!

    "Captain! Ya canno' break the laws of physics!"

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    "OK, Scoty, but the laws of physics allow you to reach out and hold a thing without touching it, and to move them without pushing. So build me a friggin' tractor beam!"

    So Scotty hired some dudes from the University of Dundee, in Scotland (naturally) and they figured out how to build one with tiny speakers:

    Real-Life 'Tractor Beam' Can Levitate Objects Using Sound Waves

    "That's logical..." said someone else.
    Every moment of a life is a horrible tragedy, a slapstick comedy, dark nihilism, golden illumination, or nothing at all; depending on how we write the story we tell ourselves.


    #2
    Re: Can a tractor beam be made? Yes!

    But would a sonic tractor beam work in space?
    I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them ... John Bernard Books


    Indian Chief 'Two Eagles' was asked by a white government official; "You have observed the white man for 90 years. You've seen his wars and his technological advances. You've seen his progress, and the damage he's done."

    The Chief nodded in agreement.

    The official continued; "Considering all these events, in your opinion, where did the white man go wrong?"

    The Chief stared at the government official for over a minute and then calmly replied.. "When white man find land, Indians running it, no taxes, no debt, plenty buffalo, plenty beaver, clean water. Women did all the work, Medicine Man free. Indian man spend all day hunting and fishing; all night having sex."

    Then the chief leaned back and smiled; "Only white man dumb enough to think he could improve system like that."



    Comment


      #3
      Re: Can a tractor beam be made? Yes!

      Originally posted by magusphredde View Post
      But would a sonic tractor beam work in space?
      Nope - without air, there is no sound.

      "Scotty you boob! Back to the drawing board!"
      Every moment of a life is a horrible tragedy, a slapstick comedy, dark nihilism, golden illumination, or nothing at all; depending on how we write the story we tell ourselves.

      Comment


        #4
        Re: Can a tractor beam be made? Yes!

        Something just touched me...and it made a sound too...........
        MAGIC is MAGIC,black OR white or even blood RED

        all i ever wanted was a normal life and love.
        NO TERF EVER WE belong Too.
        don't stop the tears.let them flood your soul.




        sigpic

        my new page here,let me know what you think.


        nothing but the shadow of what was

        witchvox
        http://www.witchvox.com/vu/vxposts.html

        Comment


          #5
          Re: Can a tractor beam be made? Yes!

          8D still.... this is super cool.
          hey look, I have a book! And look I have a second one too!

          Comment


            #6
            Re: Can a tractor beam be made? Yes!

            "The notion of transwarp beaming is like trying to hit a bullet with a smaller bullet whilst wearing a blindfold, riding a horse. "
            I won't be wronged. I won't be insulted. I won't be laid a-hand on. I don't do these things to other people, and I require the same from them ... John Bernard Books


            Indian Chief 'Two Eagles' was asked by a white government official; "You have observed the white man for 90 years. You've seen his wars and his technological advances. You've seen his progress, and the damage he's done."

            The Chief nodded in agreement.

            The official continued; "Considering all these events, in your opinion, where did the white man go wrong?"

            The Chief stared at the government official for over a minute and then calmly replied.. "When white man find land, Indians running it, no taxes, no debt, plenty buffalo, plenty beaver, clean water. Women did all the work, Medicine Man free. Indian man spend all day hunting and fishing; all night having sex."

            Then the chief leaned back and smiled; "Only white man dumb enough to think he could improve system like that."



            Comment


              #7
              Re: Can a tractor beam be made? Yes!

              Originally posted by anunitu View Post
              Something just touched me...and it made a sound too...........
              Well, it wasn't a Ninja - you don't feel their touch, nor do you hear their passing. You probobly just broke wind.
              Every moment of a life is a horrible tragedy, a slapstick comedy, dark nihilism, golden illumination, or nothing at all; depending on how we write the story we tell ourselves.

              Comment


                #8
                Re: Can a tractor beam be made? Yes!

                AHHHHHHHHHHHHHHHHHH SOOOOOOOOOOOOOOOOOOOOOO,not a ninja.......
                MAGIC is MAGIC,black OR white or even blood RED

                all i ever wanted was a normal life and love.
                NO TERF EVER WE belong Too.
                don't stop the tears.let them flood your soul.




                sigpic

                my new page here,let me know what you think.


                nothing but the shadow of what was

                witchvox
                http://www.witchvox.com/vu/vxposts.html

                Comment


                  #9
                  Re: Can a tractor beam be made? Yes!

                  Originally posted by B. de Corbin View Post
                  Nope - without air, there is no sound.

                  "Scotty you boob! Back to the drawing board!"
                  ...but light can

                  ETA: oops....forgot the link: http://www.extremetech.com/extreme/1...ssical-physics

                  more about the science behind radiation pressure: http://web2.uwindsor.ca/courses/phys...evitation.html
                  Wonderful Life: The Burgess Shale and the Nature of HistoryPagan Devotionals, because the wind and the rain is our Bible
                  sigpic

                  Comment


                    #10
                    Re: Can a tractor beam be made? Yes!

                    Originally posted by thalassa View Post
                    ...but light can

                    ETA: oops....forgot the link: http://www.extremetech.com/extreme/1...ssical-physics

                    more about the science behind radiation pressure: http://web2.uwindsor.ca/courses/phys...evitation.html
                    I am in awe.

                    Truly, we live in marvelous times!

                    Click image for larger version

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                    Every moment of a life is a horrible tragedy, a slapstick comedy, dark nihilism, golden illumination, or nothing at all; depending on how we write the story we tell ourselves.

                    Comment


                      #11
                      Re: Can a tractor beam be made? Yes!

                      A tractor beam needs to be able to pull, that's the primary purpose of it. What "pull" means when levitating is "not pushing enough to counteract gravity." When it is hanging over the object and the only resistance is air (ie not trying to pull over a surface which adds traction) then I will be impressed.
                      I'm not one to ever pray for mercy
                      Or to wish on pennies in the fountain or the shrine
                      But that day you know I left my money
                      And I thought of you only
                      All that copper glowing fine

                      Comment


                        #12
                        Re: Can a tractor beam be made? Yes!

                        I keep reading this thread title as "can a tractor be made?" and then I sit here for a few seconds thinking... Well.. yeah?

                        It's happened a few times. I think my mind is slipping.

                        Comment


                          #13
                          Re: Can a tractor beam be made? Yes!

                          My job is done...
                          MAGIC is MAGIC,black OR white or even blood RED

                          all i ever wanted was a normal life and love.
                          NO TERF EVER WE belong Too.
                          don't stop the tears.let them flood your soul.




                          sigpic

                          my new page here,let me know what you think.


                          nothing but the shadow of what was

                          witchvox
                          http://www.witchvox.com/vu/vxposts.html

                          Comment


                            #14
                            Re: Can a tractor beam be made? Yes!

                            Originally posted by anunitu View Post
                            My job is done...
                            To be fair, it really didn't have far to go. =P

                            Comment

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