This past weekend we had a Valentine's Day Banquet at my church to fundraise for a trip we're going on this coming summer. We had to get all dressed up and act like "professional" waitors and waitresses. Thus, before the banquet I turned on my hair straightener to straighten my hair before the dinner so it wouldn't be all frizzy. My mistake came in turning it on the highest heat possible and leaving it on my unmade bed. It burned right through my mattress!! In all this, I realized that my hair straightener has physics to it because it is a variable resistor! When I turned up the heat, I was actually shortening the length of the conductor which is probably located inside of the straightener. By shortening the length of the conductor, I am decreasing the resistance, allowing the electrons to flow easier and have a greater current. A greater current means that there is more power and as a result, more heat coming from the straightener which is why it burned through my mattress!!
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