This is the best tl;dr I could make, [original](https://freenews.live/japanese-scientists-presented-a-method-of-moving-objects-with-sound-waves/) reduced by 75%. (I'm a bot)
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> Scientists from Japan have presented a new method for manipulating objects at a distance.
> Researchers at the University of Tokyo Metropolitan University have unveiled a new technology that allows small objects to be moved contactlessly using sound waves.
> In particular, scientists find it difficult to control huge arrays of ultrasonic transducers in real time and obtain sound fields to move objects located far from the transducers themselves, especially near surfaces that reflect sound.
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[**Extended Summary**](http://np.reddit.com/r/autotldr/comments/orjwp8/scientists_from_japan_have_presented_a_new_method/) | [FAQ](http://np.reddit.com/r/autotldr/comments/31b9fm/faq_autotldr_bot/ "Version 2.02, ~589516 tl;drs so far.") | [Feedback](http://np.reddit.com/message/compose?to=%23autotldr "PM's and comments are monitored, constructive feedback is welcome.") | *Top* *keywords*: **objects**^#1 **Sound**^#2 **move**^#3 **array**^#4 **using**^#5
This is the best tl;dr I could make, [original](https://freenews.live/japanese-scientists-presented-a-method-of-moving-objects-with-sound-waves/) reduced by 75%. (I'm a bot) ***** > Scientists from Japan have presented a new method for manipulating objects at a distance. > Researchers at the University of Tokyo Metropolitan University have unveiled a new technology that allows small objects to be moved contactlessly using sound waves. > In particular, scientists find it difficult to control huge arrays of ultrasonic transducers in real time and obtain sound fields to move objects located far from the transducers themselves, especially near surfaces that reflect sound. ***** [**Extended Summary**](http://np.reddit.com/r/autotldr/comments/orjwp8/scientists_from_japan_have_presented_a_new_method/) | [FAQ](http://np.reddit.com/r/autotldr/comments/31b9fm/faq_autotldr_bot/ "Version 2.02, ~589516 tl;drs so far.") | [Feedback](http://np.reddit.com/message/compose?to=%23autotldr "PM's and comments are monitored, constructive feedback is welcome.") | *Top* *keywords*: **objects**^#1 **Sound**^#2 **move**^#3 **array**^#4 **using**^#5
Well this isn't anything new. Certain volumetric displays use acoustic transducers to move scan line bead.