I remember reading about this a while back. Its an observation that under the right circumstances hot water may freeze faster than water which is cooler. It sounds intuitively crazy and with a basic knowledge of physics the first impulse is to say this is impossible, but it is in fact a well documented phenomena that has been reproduced in labs around the world.
what I wasn’t aware of was the story of the modern discovery of this effect by a high school student after which it is named.
Anyway, if the world hasn’t ended and you’re looking for something to do check it out at THIS LINK. The story and the reaction of the scientists and teachers just goes to show that those of us who claim to be critical thinkers need a reminder now and then not to let our thinking become dogma. Most things that seem impossible really are but every now and then there is a flaw in our thinking.