>Trust Wagner to find a snake in the grass. >Wagner, If life was this complicated, we wouldn't get anything done! >;-) > >Quentin >"All we sense is vibration, nothing is material." I'm surprised at the amount of shoddy engineering uncovered by Wagner's innocent comments :-) Anybody ever met eg 100mF capacitors on a circuit diagram. What do you think they are? Someone being shoddy with their units and using "m" for micro perhaps? Put in a 100 micro-Farad capacitor in such a circuit and see how well it works. Quiz (no sample or even final answers available)(or guarantee of having got it right in long form either) :-) Correctly write in abbreviated form - (all questions are worth O marks.) 100 meg Ohm 100 milli Ohm 100 milli Farad (aaah!). 100 micro Farad. Even units names and proper (Proper?) names move on it seems. We used to have 300 degrees K being about room temperature. Now its 300 k = 300 kelvins. Yes, plural, and the "degrees" and the capital letter has gone so I guess therefore that this is no longer named after Lord K - just happens to be a unit with the same name as him :-) If we do not try to allow to let life be this complicated we will get more done but it will more occasionally de done wrong. Vibration? - Actually, everything is light or made thereof - I guess its immaterial whether you consider this as electromagnetic vibration or as particles :-) Bonus questions - each worth O marks: - How long does it take a "piece" of light to get from anywhere to anywhere in the universe from its perspective? - How big is the universe for all light? regards Russell McMahon (D0 y0u think that was a mistake?)