You probably have at least ten three-pins plugs in your home, and more at work, but have you ever stopped to look at the pins? You'll notice that one of the three is longer than the others. Find out ...

I'm stuck. Just putting together a new system and all I have are 3 wire fans for the heatsink. The CPU fan connection on the motherboard is a 4 pin thingy.<br>I can plug in the 3 pin connector but the ...

This circuit indicates the integrity of wiring connections. It shows all the mains connections – Phase, Neutral and Earth connections – are intact or not. The circuit is too small and can be housed in ...

A pro-Brexit radio caller has hit back at critics saying he believes the UK will be better able to set its own safety standards once it is not part of the EU. Listeners were left baffled last night ...