Redefining the Kilogram with the DIY Watt Balance

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.

Links:
-NIST Lego Watt Balance Paper: http://scitation.aip.org/content/aapt/journal/ajp/83/11/10.1119/1.4929898
-NIST Lego Watt Balance Video: https://www.youtube.com/watch?v=oST_krdqLPQ
-Building the Desktop Watt Balance: [Coming soon!]
-Watt Balance Technical Drawing Timelapse: https://www.youtube.com/watch?v=VOsJHnG_KfU
-Patreon: http://patreon.com/PracticalEngineering
-Website: http://practical.engineering
-Music: Elexive - Tonic and Energy (https://www.youtube.com/watch?v=U6fBPdu8w9U)

This video is sponsored by The Great Courses Plus.

Видео Redefining the Kilogram with the DIY Watt Balance канала Practical Engineering