[Superman]

Guys, I'm curious. For example, I want to know why the sky is blue. And a bunch of other stuff. But here's one you can perhaps help me with.

I assume a "calorie" as printed on food packaging means the same as a "calorie" in the sense of heat energy. That is, I assume a serving with 150 calories will produce, in our bodies, 150 calories of heat energy.

A calorie is the heat energy required to raise one gram of water one degree celsius. In an amazing twist of physics, it takes something like 800 calories to change a gram of ice at 0 degrees Celsius to a gram of liquid water at 0 degrees Celsius.

So, do you guys see this coming? What if a dieter were to suck on ice. A cube of ice must be several grams, and if each gram burns 800 calories..........

Help me out here. In truth, at 165 lbs and being actively and voraciously hungry always for the richest and most decadent food, I really don't seem to have a problem burning calories without sucking ice cubes.