
Copper: Electrical Conductivity
What metal makes a great flashlight? Well it depends on your criteria.

All you need to know about aluminum. Part 2!Now that we're finished talking about the primordial part of aluminum lets bring it into modernish times. 1825 to be exact.

Ah Aluminum. Everyone's favorite most boring metal. But what makes it special and why is it used so much? It's everywhere from space to your kitchen.

Why are Lumens irrelevant when talking about flashlights?
The word "lumen" may sound like it has something to do with the moon, but it actually comes from the Latin word for light. Lumens measure how much light is created by a light source-such as a bulb ...

