MIT News company blog
An old artifact kept in a vault outside Paris is no longer the standard kilogram
The international standard measurement of the kilogram is being officially changed on May 20, for the first time making all standard units defined in terms of basic physical principles instead of particular human-made objects. MIT professor and Nobel laureate Wolfgang Ketterle explains the change.
- Points
- 202
- HN comments
- 143
- Submissions
- 1
- Cited by
- 0 commenters
Science & SpaceHistory & Retro Computing2019
On Hacker News
| Submitted | Title on HN | Points | Comments |
|---|---|---|---|
| May 17, 2019 | An old artifact kept in a vault outside Paris is no longer the standard kilogram by WalterSobchak | 202 | 143 |