Like something out of a sci-fi flick, sonic tractor beams are capable of making small objects float in thin air using sound waves. As awesome as this concept in science and engineering may be, getting your hands on one isn’t so easy. Well, at least until now.
Researcher Asier Marzo and his colleagues have designed and built a portable acoustic tractor beam with off-the-shelf components, including an Arduino Nano, a motor driver, several transducers and a LiPo battery to name just a few, as well as a number of 3D-printable parts.
Besides amazing your friends and family, these DIY tractor beams have many potential applications and may even become a new tool for studying microgravity effects on biological samples.
Marzo and his team have released the project’s instructions along with an open access paper in the journal Applied Physics Letters.