When Molecules Need Mittens
Baby, it's cold outside!
No matter how cold it gets this winter, old-timers will say it could be worse. And they're right. It could be colder--a lot colder. It could be absolute zero, with no heat at all.
How cold can it get? We'll use your car as our experimental chamber (hope you don't mind). We'll start at a nice warm temperature, say 75 degrees Fahrenheit (24 degrees Celsius). You only need to wear a shirt and shorts, and you might even want a cold drink. Except that now, you're starting to feel a little chill in the air. The temperature is dropping to 45 degrees F (7 degrees C). You'd better grab a coat and long pants. Don't worry about the heat--we've turned that off.
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