Wow, did I sleep that long?
Wow, did I sleep that long? It sure is good to wake up and see my friends from the US again. Everyone's back here!
Yesterday they cooled my liquid helium back down to 1.2 Kelvin. They do this alot. They hook up my helium tank to a vacuum pump, and pump out any gas that may be in the tank. This creates a vacuum, which lowers the pressure. This lower pressure lowers the boiling point. (This is just like how water boils at a temperature less than 100 C on a high mountain top – it's because of the lower atmospheric pressure.) About half of the liquid helium boils away in the process, but what's left is at a lower temperature.
Anyway, they're running the same tests they did back in December. What, do they think I'm turning into a geezer or something? Of course I can still see X-rays, just as well as I could then. Well, I guess they had to be sure, and it is good to be running again.
