What's That Whirring Noise?

Today I tried out the first portion of my temperature dependent circuit! I tried using a motor with my Arduino for the first time. It's also the first time I've used an external power source in addition to the Arduino's 5V output pin. All went well, no fried circuits!

Here's a video:

I also started a roguelike in Linux today! It's going to take a long time to get visual results, so I will focus mor on my Arduino thermostat!