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Martinf57

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Martinf57

What does 4X4 mean?

We used to call them 4WD (4 wheel drive) but that now seems to have been replaced by '4x4'. If one of the 4's meand 4WD, what does the 'x4' actaully mean?
11:38 Tue 13th Apr 20049 answers, last by Dooglas 19:44 Wed 18th Jul 2007
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Martinf57

Digital TV's

I have a regular analogue TV and a seperate Digital TV. When both are on, tuned the same channel, the digital TV is presenting the programme a few seconds after the analogue. Why? Surely then time...
17:53 Fri 19th Dec 20036 answers, last by Martinf57 08:50 Mon 22nd Dec 2003
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Martinf57

Steam Engine injectors

Steam Engine injectors (for topping up the water level in a high pressure boiler), how do they work - whats the physics?
12:27 Wed 12th Nov 20033 answers, last by jetgriff 01:56 Sat 05th Sep 2015

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