Tidbit #21 - April 16, 2011

When you hear the word Calorie, what's the first thing that comes to mind? Food? Bad? I need to stay away from those? That's what most people hear, because a Calorie has come to be known as the standard cause of weight gain, and something to be avoided at all costs. What lots of people don't REALLY know is what a Calorie is, and why it's always capitalized.

So, for today's tidbit, two questions will be integrated into one.

Question(s): What is a Calorie, and why is it capitalized?


Answer: When asked this question, most people end up stuttering and giving an answer like "it's the fat in.. um.." or "isn't it.. um.. the building blocks.. uh.." or just a flat "i don't know." The problem is, even I know this, and it's a simple answer, too, no summary needed.

It's actually a chemistry definition: a calorie is a specific measure of heat. By definition, a Calorie is the amount of heat needed to raise the temperature of 1 liter of water by 1° celsius.

So, that's one question down, but why is it Capitalized Like This?


Well, strictly speaking, there are two different varieties of the heat measurement: calories and Calories. The difference is in the capitalization of the letter c in the word. A little c calorie has the same proportion to a big C calorie as a gram does to a kilogram. (In other words, 1000 calories = 1 Calorie)


If you didn't catch the answers in there, here they are:


A Calorie is the amount of heat needed to raise the temperature of 1 liter of water by 1° celsius.
There are two types of calories: big C and little c. (1000 calories = 1 Calorie)