How We're Redefining the kg
9:58
The kg is dead, long live the kg
15:34
How To Measure The Tiniest Forces In The Universe
12:46
The Planck Mass: Not extremely big and not extremely small
16:57
The Illusion Only Some People Can See
18:32
The world depends on a collection of strange items. They're not cheap
23:34
Why Democracy Is Mathematically Impossible
11:34
Planck Time - The shortest measure of time
11:44