Magnets are pretty nice little tools. [EmGi] has used them in many a cool 3D printed build with great success. But getting them where you want can be really tricky. More often than not ...

Robotic tools are too big for ‘keyhole’ brain surgery – but a new miniature technology using magnets could change all that.

A team of researchers at the University of Toronto and The Hospital for Sick Children (SickKids) have created a set of tiny ...

After months of debating with myself, I finally decided to try a magnetic window cleaning tool as a last hope before employing someone to clean them for me. I was so impressed that it has now ...

Magnetic levitation demonstrated using a Dremel tool spinning a magnet at 266 Hz. The rotor magnet is 7x7x7 mm3 and the floater magnet is 6x6x6 mm3. This video show the physics described in the ...

Their extremely small size is possible as they are powered not by motors but by external magnetic fields. Current robotic surgical tools are typically driven by cables connected to electric motors.

By altering the amount of electricity flowing into the coils, the team can manipulate the magnetic fields, causing the tools to grip, pull or cut tissue as desired. To test the tools, Diller and ...