Practical Engineering

Redefining the Kilogram with the DIY Watt Balance (2016x13)

Air date: Sep 27, 2016

Mass is a challenging concept to tie down, yet it is one of the most crucial measurements in our world. Since the 1800's, we've used a physical artifact as a standard for mass calibration across the world. Within the next few years, that will all change because of this ingenious device: the watt balance.