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Last night in Karate class I reached a two important milestones in my training. Firstly, I was able to tie my belt without begging for assistance from a more advanced student. That doesn’t sound like much, but it signals the moment when I transitioned from total and complete fool, to just a regular hapless newbie. The second milestone is that I’m no longer the newest person in class. We got a new student last night, and even though that doesn’t have anything to do with me personally, it does mean that I don’t feel as strange, since I’m now in ‘the middle’ instead of the very bottom. Granted, I’m still basically on the bottom, just lifted up a tiny bit now.

The second thing I’d like to discuss is a small movie idea. First, some background. At work each morning I have to fill a 10 liter container with liquid nitrogen from our large 230 liter storage tank in the loading dock. The 10 liters gives me plenty for all the presentations and demonstrations I’ll be doing during the day.

When the nitrogen is dispensed from the 230L storage tank into the smaller container, a huge plume of thick white fog is created. As the nitrogen leaves the tank it begins to boil immediately. Liquid nitrogen boils at -320 degrees F at standard pressure. Hence, in open air, there is no where on Earth where liquid nitrogen will not be boiling. This is the reason we refill the tank each day, in addition to the liquid nitrogen used during the shows, a certain amount is lost to evaporation as the day goes on.

Anyway, as the nitrogen boils, very cold nitrogen gas rises up from the surface, causing water vapor to condense out of the air, creating a white fog. This is the same principle as dry ice fog. Cold gas rushing into the open air causes the fog to condense. As I fill the tank, white fog spills out, covering the floor like a carpet, as a several foot high plume ejects straight out of the top of the container.

As I was filling the tank this morning, a building services employee walked into the dock and shouted, “What are you doing, fogging up my dock like this?!? You summoning demons or something in here?? Somebody call the preacher! This guy’s callin’ the dark spirits in here!” It was very funny, and we all got a good laugh about it. But it gave me an idea for a movie.

The Haunted Refrigerant Gas Delivery Man: A horrifying story of a refrigerant gas delivery man who died many years ago in a terrible nitrogen accident. However, due to the terrible circumstances of his mysterious death, he rose from the grave, and began to deliver gasses again, as a zombie! When he delivers a tank of liquid nitrogen to a facility, he curses it, causing the tank to release the spirits of the damned, instead of liquid nitrogen. Victims are frozen with fear, and then the spirits consume them, and suck them back into the storage tank.

Sounds like a blockbuster, right?

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