Although the Air Cooler is a product of modern technology, the concept of air conditioning has been known since the Middle Ages, namely in the days of Ancient Rome and Persia. Willis Haviland Carrier became the first person to invent a large-scale modern Air Cooler that uses electricity in 1902.… Read the rest
Light Emitting Diode (LED) has long since been known especially in the electronics field, and used in many electronics and electrical appliances. Small examples of LED in your daily life is the infra-red ray emitting LED diode in the remote control for your TV, or the LED diode for the … Read the rest
Getting a stair chair lift, which is also known as a wheel chair lift can be very useful to a home, and it can even serve as a great help in public areas. Here we will discuss the various benefits of having a stair lift at home or space. … Read the rest
