First, he cracks an egg. Then he props it on a couple of pieces of bread. The result is beautiful, weird, and fascinating.
Minnesota has some of the most brutal winters in North America. They are famous for their low temps, as in this video, where Youtuber Minnesota Cold films on a day when it was -29 degrees Fahrenheit.
This particularly fascinating demonstration shows how eggs behave in extremely low temperatures. He props up one cracked egg on six pieces of toast and lets it drip down. When it freezes moments later, he has a strangely beautiful sculpture of an egg suspended mid-drip.