OpticalTweezers

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  • Tetris played on microscopic level with lasers, thanks to Amsterdam's rigorous curriculum (video)

    by 
    Zachary Lutz
    Zachary Lutz
    12.26.2011

    Ostensibly speaking, it appears that university goers in the Netherlands have a bit too much time on their hands. You see, in between visits to coffee shops, students at VU University Amsterdam have developed a way to play Tetris with lasers, or in this case, a light-trapping device known as optical tweezers. With blocks constructed of microscopic glass spheres, university physicist Joost van Mameren explains, "The focus of this beam acts as an attraction point for small particles: they get sucked into the focus and cannot escape." The end result is transformed into a rousing experience of the Soviet Union's greatest creation ever, now played out on the microscopic level -- be sure to check the action after the break. For gamers who get in a bit of a jam, the laser can be turned off, which will prompt each of the beads to scatter into chaos. A fitting conclusion, indeed.

  • Optical tweezers manipulate microscopic objects using an iPad, raw brainpower (video)

    by 
    Darren Murph
    Darren Murph
    03.08.2011

    Okay, so maybe the whole brainpower thing is a distant second to the iPad itself, but still -- being a rocket scientist probably doesn't hurt when manipulating microscopic objects via a multitouch display. That's the kind of setup that students and boffins alike have going at England's University of Bristol, where iTweezers are being used to control a tiny rod about 300 nanometers wide, amongst other things. Essentially, the iPad is able to display what's under a microscope via a wireless display transfer, and then, touch points are converted into laser movements that are used to handle objects that are far smaller than those visible particles clogging up your left ear right now. All told, a user can select up to 11 different objects, and in theory, the iPad could enable scientists to do this remotely. Hey, we're all about new and improved ways to telework. Vid's below, kiddos.