license: This image is a derivative work of the following images: File:Ytterbium_1.jpg licensed with GFDL 2006-03-25T10:12:26Z Maksim 372x500 (19426 Bytes)
{{Information |Description={{en|1=Ultrapure ytterbium, 2 grams. Original size in cm: 1 x 1.5}} |Source=http://images-of-elements.com/ytterbium.php |Author=[[User:Jurii|Jurii]]
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse English A ytterbium lattice clock that uses photons to measure