Tag: light

  • Radio Wave Power And How It Gets Reduced By Distance

    Radio Wave Power And How It Gets Reduced By Distance

    Some people are very concerned that radio wave power coming from radio transmitters’ antennas will harm people. In particular people are troubled by mobile phone masts causing long term health problems when they are near to their homes. I just want to make it clear how much a transmitter’s power diminishes as it spreads out…

  • Converting A Bell Push Light To LEDs

    Converting A Bell Push Light To LEDs

    Post Description How I replaced an incandescent bell push light with LEDs. The bell push operates a door chime powered by AC from a bell transformer.

  • Lighting Charts – Which Lamp Do I Need?

    Lighting Charts – Which Lamp Do I Need?

    Introduction We are all trying to reduce energy costs and CO2 emissions by choosing modern alternatives to incandescent lamps. Here are some lighting charts to help you select the best lamp for your situation. Since the decline of incandescent lamps there have been many alternatives made available based on fluorescent tubes bent in many ways to…

  • Morse Code

    History Morse Code was devised by Samuel Finley Breese Morse, an American artist and inventor, in the 19th century. It is made up of a series of dots and dashes when written down. Speaking Morse Code When spoken a dot is pronounced “dit” if it is the final element of a character, else it’s pronounced “di”, and…