| ▲ | rolph 4 days ago | |
use a resonant determination of mass. https://www.nature.com/articles/nnano.2012.42 https://arstechnica.com/science/2012/04/measuring-yoctogram-... | ||
| ▲ | rcxdude 2 days ago | parent [-] | |
These are very sensitive but they are likely not calibrated to within 0.1%, and certainly it's not easy to transfer this up several orders of magnitude withiut introducing huge errors. | ||