kilogram

Tech

The Definition of a Kilogram Just Changed Worldwide

05.20.19

By Becky Ferreira
Tech

Inside the High-Tech Lab Where Scientists Are Redefining the Kilogram

07.19.16

By Bryson Masse
Tech

This Perfect Silicon Sphere is the Most Precise Kilogram Ever

07.16.15

By Rachel Pick
Tech

At 125 Years Old, the Kilogram Is Approaching Retirement

09.26.14

By Victoria Turk
Tech

How to Replace the Kilogram, the Last Physical Unit of Measurement

05.03.12

By Derek Mead