[Neil] and [Austin] had the idea of using acetone vapor, created in a glass jar placed on top of a heated build plate, The process is pretty simple. Get a large glass jar, put it on a heated ...

After that, the app reveals a "Keyto Level" ranging from 1 (not in ketosis) to 8 (deep ketosis), based on how much acetone vapor is detected on the breath. The app also tracks a dieter's progress ...

Evaporation is the process by which a liquid changes into a vapor. The molecules from the liquid enter the surrounding air. The acetone used in this demonstration is very volatile (it changes from a ...

As the vapor touches the surface, it cools the penny down and as it burns, it reheats the penny. The convection of air around the penny may also contribute to this effect. Pour 5mm of acetone in a ...