Hackaday: Along the road to developing his own cryocooler to produce liquid nitrogen, there are a number of interesting rabbit holes [Hyperspace Pirate] has found himself taking a look at. For example, using dry ice for a pre-cooling stage and subsequently wondering what it’d take to make this dry ice oneself.
1 comment:
The title of this article is so silly. Of course, it is as hard as you think it is, it’s colder than anything you probably have in your house. I enjoy that it is possible to make dry ice at home. I have baking soda on hand but the other stuff I would need to source and then why wouldn't I just buy the dry ice? This hack comes down to convenience versus saving money, which depending on your access to items could go either way. Maybe you already have Co2 or you know where to get some. But if you’re like me, and you don’t have access to anything but the basics (unless you want to hunt on amazon for something to pressurize your Co2) buying dry ice instead of trying to figure out this experiment is likely the move. The comments below this article talk about using a fire extinguisher and a pillowcase to do what this hack does. It seems much less safe but sounds fun to try.
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