Nitin wrote, regarding the foot-pump dynamo to power your laptop computer: > let see: a dell 4000 series laptop has a battery of 1800mAh at > 14.8V.... [Snip] Thats ~22834.286 calories.
> now acc. to > http://diabeticgourmet.com/calculators/799run.shtml > A perons weighing 150 pounds (kgs?) jogging 5 miles burns 489.75 > calories. > To be able to foot-pump more energy than that in a few minutes seems > totally impossible even with 100% efficiency. Either is a fiasco or the > above conversions have a flaw :) Hi Nitin, The answer is that the thermodynamic calorie (with a lower-case "c") and the metabolic or dietary Calorie (with an upper case "C") are not equal. The metabolic Calorie is actually 1000 thermodynamic calories. A 150-pound jogger actually burns about 490,000 thermodynamic calories (about two million joules). Hope this helps. Now I've got to get back to my 8-million-joule-per-day diet. ;-) Bill Peifer Rochester, NY - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
