How does the stuff in a fire extinguisher stop a fire?

Let’s talk about fire! Also, fire extinguishers. To start a fire, you’ll need three things: fuel (such as wood or gasoline), oxygen, and heat. Fire is the result of a chemical reaction between oxygen and the fuel. Simply remove one of those three elements — fuel, oxygen, or heat – to put out a fire.… Continue reading How does the stuff in a fire extinguisher stop a fire?

How Does CCTV Work?

CCTV, or closed-circuit television, has been around since the beginning of James Bond. However, since the beginning of 007, CCTV has come a long way. What is the work of a modern CCTV system? The solution is contingent on the system in question. The many types of cameras utilized determine the systems. Analog and IP-based… Continue reading How Does CCTV Work?