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As you sit in front of your PC, laptop or even your smart phone or iPad in a well-lit room, warmed by your central heating system, picture yourself in Medieval times. Tales of this period of history (500 CE to 1500 CE) abound with knights and nobles, kings and serfs, jousting, and of course feasts and banquets. Would you be a knight in shining armour off to the crusades or jousting to win your lady’s favour? Or would you be a serf working for your Lord of the Manor and struggling to …

LED light bulbs (Light Emitting Diodes) are not a new technology. Back in the day, around the late 1960s, when LED light bulbs just began popping up in shops and businesses, bright red was the only color option available for everyone.These little bulbs were a game-changer for technology at the time, but their use was pretty limited. You'd usually spot them glowing as the turn-on signs for different gadgets like TVs and audio gear. If your TV was on, you’d spot that glowing red light, …