Thursday, November 04, 2010

Light Emitting Diodes...the future?

Have you noticed how the tungsten bulb is now being replaced by the super energy efficient, high brightness Light Emitting Diodes?
Torches, spotlamps, stick on lights, cars, traffic lights...they are everywhere...sneaking up on us, ready to take over the world!

I had a dilemma today, we are making a robot project with children and learning about circuits. Now simple circuits for children usually consist of a battery, bulb, wire and switch. The children want to make robots with different coloured lights and flashing. we use old fashioned glass bulbs that are just about useless now or bring in the LED technology? Remember, LED's are polarised, so how do you explain the concept of a circuit to young children if the circuit fails because the battery or LED is the wrong way around?

I decided that LED's are the thing....let's get rid if the old tungsen bulb and move into the future!

Lets Experience Digital ... (LED) ... even if it is an analogue device!

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