Engineering, and gadgets: things that make the world work.
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How efficient would a windmill be at generating electricity?
Started by paul.fr |
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different coloured LED's
Started by paul.fr |
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Does a mobile's ringtone volume increase if you use vibrate mode?
Started by paul.fr |
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How do submarines work? How do they sink and re-surface?
Started by paul.fr |
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what materials are used in soundproofing?
Started by paul.fr |
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Automatic frosted glass
Started by paul.fr |
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flashing light bulbs
Started by paul.fr |
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Left or Right, what's the difference?
Started by paul.fr |
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Do our cars really need 'cats'?
Started by peppercorn |
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