This is just so much what we want to have in the hands of our children as we introduce them to the world of super sensors. I talk through the steps of making a $3 temperature sensor go to 0.05 C for you kids first taste of science. MP4 recording     MP3 recording -- -- Your browser does not support the audio element. The plateau at 6 degrees is real and mysterious in a cup of chilled water walming up to room temperature