The Chemistry of Contrails

Earlier this week I was ice fishing on a lake in northern Maine that just happens to be under the flight path of many airplanes going to and returning from Europe. Being a bit of an aviation geek, I enjoyed guessing at the model of the planes overhead. I could quickly...

How Birds Learn to Sing

Spring isn’t too far away and soon we’ll start to see and hear the songs of more birds around my home here in Maine. If you also live in a cold, northern climate the sounds of the birds is a welcome sign of spring. Why do birds sing? And how do they learn...

How Computers Work

We use computers every day. But how many of us actually know how they work? Sure we know how to use the software, but I’m thinking about the hardware. How does that aspect of your computer work? Code.org has a new video series that addresses that question and...