Umm, what is this? If you’re gonna be outside, don’t sit in the sun. And if it’s hot, don’t go outside. We don’t need this.
In this demonstration, a bacterial culture known as Pseudomonas syringae (honestly, I’m not sure if I’m using that term correctly in the sentence) is dipped into a glass of water and instantly cools it down to -6 C, turning the water into ice in seconds.