Tractor Beams are mysterious waves that can attract particles towards the source. Here, we will show you how to build an Acoustic Tractor Beam with components that can be bought directly on the Internet for less than 75$.
With this Instructable you will be able to get in your hands a device that it was only seen on SciFi movies such as Star Wars or Star Trek.
If you want more scientific background on Acoustic Tractor Beams, you can check our Open Access research papers:
Do not forget to watch the attached video in this Instructables.