Learn how to build a DIY portable speaker using a car speaker, cardboard, and basic electronic components. This step-by-step ...

In this lesson, students search for transistor-based devices at school. They use the results of their search to explain the significance of the transistor in their lives. A transistor is a tiny device ...

When you think of Sony, you probably think of a technology company that’s been around forever. However, as [Asianometry] points out, it really formed in the tough years after World War II. The two ...

On this day in 1947, scientists at Bell Labs, owned by AT&T — which had a telephone monopoly at the time — tweaked a new gadget the size of a shot glass to produce, basically, amplification. It marked ...