Additionally, the ions are in a vacuum of lower than 10-11 torr. This is about 100 trillion times lower than atmospheric pressure. To visualize this daunting number, imagine light particles like hydrogen or nitrogen in a vacuum chamber….

By the way it is interesting to note that what we could imagine about light particles such as hydrogen or nitrogen molecule is according to conventional explanation in physics. But the problem is that there is no explanation what are they and how they formed to be the light particles of the material matters? Maybe this physical view could help us to visualize them.
http://www.vacuum...=4〈=en