Beyond stupid. Comes from having several generations of uneducated & woefully ignorant people.
And look at the bars serving these things. The liabilities of selling this concoction are off the charts. Don’t these businesses listen to their lawyers?
When I was a kid I saw several liquid nitrogen presentations. Zowie!
“When I was a kid I saw several liquid nitrogen presentations.”
When I was a kid (high school) a fellow student and I put on liquid air demonstrations for a science fair. Our physics teacher got the liquid oxygen and liquid nitrogen from the cryogenics lab at Iowa State College (University). We demonstrated the oxidative abilities of the liquid oxygen, and the super cooling abilities of the liquid nitrogen. With the liquid nitrogen we froze a piece of inner tube (for a nail) and made a mercury hammer. Then we drove the rubber nail into a block of wood with the hammer. Took a hollow rubber ball, bounded it, then immersed it in the liquid nitrogen and threw it against a wall...of course it shattered. Then I immersed my hand into the liquid nitrogen, and after a few seconds withdrew it, in full possession of my fingers and they still had full movement. That was when we got the Oh’s and Awe’s. That works, because the heat of the hand gasifies the nitrogen in contact with it and forms a temporary insulating layer. We had 5 demonstrations in the course of the evening. And I immersed my hand each of those 5 times.
Risky? No, not if you understand the laws of thermodynamics.
Some years later, in industry, we used liquid nitrogen to freeze the tube going into the braider in making wire braid hydraulic hose.