![](/sites/default/files/hm/images/tractor%20beam.jpg)
Spanish scientists have created an ‘acoustic hologram’ that can lift and spin objects, and they hope the technique can be used in surgery.
http://www.theguardian.com/science/2015/oct/27/the-force-awakens-tractor-beam-becomes-a-reality
Spanish scientists have created an ‘acoustic hologram’ that can lift and spin objects, and they hope the technique can be used in surgery.