This theory makes a number of falsifiable predictions. 1) If the direction of current flow in the lithographically patterned Hall bar is not aligned with the 1D-like principal axis of transport in the ...

The axis of the corrected gear is shifted ... Spiral teeth are analogous to helical teeth on cylindrical gears: the teeth engage gradually and smoothly, transmitting motion more smoothly and quietly.

He’s using it to add motion to time-lapse photography. The base provides two-axis rotation controlled with a handheld keypad. Custom firmware and a bit of software allow for computer control.