which numbers count? - If you want to come up with a machine that computes, (a computer,) you need numbers with which to compute. Before we had the numbers we know and love, several other numbering systems were tried.

Stone age computers - We decided to spend a few episodes telling the story of how we got computers. This episode, in typical “Lab With Brad” fashion, we’re going all the way back to the beginning of the story. And by “beginning,

It’s the end of the world as they knew it - The Permian period began with lush forests. new bugs arrived to feed on the succulent plants, strange sharks still swam the seas, and the first large plant eaters and their predators walked the increasingly ...

Strange sharks, giant insects, and a new and improved egg - During the carboniferous, forests and swamp dominated the landscape. In the oceans, strange new sharks appeared. Giant insects walked amongst the trees while the first reptiles and early ance...

Forest, fins and feet - Giant Mushrooms, the first forests, 28 foot long armored fish hunting sharks who were hunting smaller fish. In shallow streams and ponds, some fish were changing, becoming better at breathing air.

The Lab anniversary: three years and counting! - After three years of doing this show, we do more of this show. Join us as we celebrate our anniversary with a couple nifty interesting things that never quite made it into an episode,

By tooth and scale - The Silurian period was warm, and compared to the periods around it, rather gentle. Plants on land became a bit more sophisticated, with roots and stems and the ability to move water an nutrients around their bodies.

Life tries again - After the extinctions at the end of the Cambrian, the Ordovician once again came with a sudden increase in the amount and variety of life. This time, those who survived the end of the Cambrian would diversify,

a bevy of beasts - About 451,000,000 years ago, there was a sudden increase in the number of different types of animals in the fossil record. The animals that came before didn’t stand a chance. The new kids had hard shells, eyes, jaws and teeth.

itty bitty chatty: cells, signals, and communication - From Bacteria coordinating their attack, to brain cells trying to figure out how bacteria coordinate their attack, today we look at how cells signal and communicate with one another,