Benvenuti in queste pagine dedicate a scienza ed arte. Amelia Carolina Sparavigna

Wednesday, March 9, 2011

Measure for measure

Measure for measure, 9 March 2011, by Stuart Nathan
"There’s a new gadget in my flat. It’s small and unflashy, it’s sitting on the corner of a worktop in my kitchen, and it tells me, from second to second, how much carbon dioxide the electricity I use is generating. And already it’s proving strangely fascinating....So for the past couple of days, everytime I or my partner switches on anything electrical, we’ve been dashing into the kitchen to see what’s happened ...
Having this little chunk of plastic handy has really pointed out what physicists always knew and engineers have been saying since the industrial revolution: if you can’t measure something, you can’t control it. Just knowing, vaguely, in the back of your mind that a certain appliance is a bit juice-hungry is no substitute for seeing the hard numbers when you switch the thing on. Knowledge is power; or, in this case, cutting the amount of power."
 Read more: Measure for measure | Opinion | The Engineer