Trained people who can operate, manage, and secure computer systems are in high demand in today’s business world. This is because after setting up an IT help desk, organizations must then think about network and systems administration. Indeed, every firm …

Today, batteries are so incredibly ubiquitous that they are more or less invisible to us. Still, they are a remarkable invention whose history is long and storied and future equally exciting.

A battery is basically a device for storing chemical …