The experiments also serve to illustrate Dirac's Plate Trick, which posits that a rotating object with strings has to rotate twice to return to its original state.

Mini Object Lesson: The Steel Road Plate, Accidental Traffic Calmer. By Ian Bogost. May 9, 2016. Share. Save. Editor’s Note: This article previously appeared in a different format as part of The ...

A History of the World is a partnership between the BBC and the British Museum that focuses on world history, involving collaborations between teams across the BBC, and schools, museums and ...

Experience with plate machines brought many design variations with sizes ranging from small table-top units for laboratory use to large cabinets that powered early x-ray machines. This electrostatic ...