Massive News: Kilogram Redefinition Heads Into Crucial Test
Superprecise standard masses are on their way to Paris for a critical weigh-in
By Rachel Courtland
Posted 19 Feb 2016 | 16:00 GMT
Masses in Motion: Canada will send a cousin of this kilogram mass to Paris for a dry run of the unit’s redefinition. It’ll be joined by masses from around the world. |
這項珍貴的貨物會和其他同類的物品會在幾個禮拜內一起運入巴黎。它們的目的地:國際度量衡局(BIPM)就在城市外不遠處,在那裡它們將被互相比較,看其估計質量是否吻合。