The underwater acoustic hologram seen in the image projects a sound field towards a water surface. A paper boat is propelled and pushed along the track that is generated by the hologram. 3D-printed ...

Physicists have figured out how to move an object in three dimensions without the need for any physical contact, just by the clever use of magnets. Magnetic Levitation, MagLev for short, is the ...

Ordinarily, if you want to change the shape in which an object is 3D-printed, you have to alter the computer model that tells the printer what to do. A new and simpler technique, however, allows the ...