And all ion channels are selective for a single type of ion, and we can think about how that selectivity takes place, and that's where this idea of atomic radius is going to become very important.
The key to both experiments is the quantum logic atomic clock, which USES the oscillation of a single aluminium ion to maintain precise timing.
两个实验的重点是量子铝原子钟，它利用单一铝离子的震荡来精准测量时间的流逝。
3
But the lead ion collisions will be different; because lead ions are composed of complete atomic nuclei - not just a single subatomic particle - their masses are far larger.