Questions for ‘Scientists vote to fix the world’s weight-loss problem’
![860_units_of_measure.png](https://www.snexplores.org/wp-content/uploads/2019/11/860_units_of_measure.png)
Starting in May 2019, the kilogram will be defined by measurements from a device called the Kibble balance. This is a LEGO model of that device, at the National Institutes of Standards and Technology.
NIST