Do you mean it would work if you had a big enough bottle and a place to put it ? ......... Good use for a tesseract AGSC On 2006-Aug 06, at 08:42hrs AM, Tony Smith wrote: >> Compare the >> cost of that new hybrid with the cost /difference/ between > the gas my >> old civic will use compared to the new hybrid. [...] > > I remember a while back one of the presenters at the local > SAE chapter meeting mentioned that storing the braking energy > as compressed air achieves up to 70% efficiency, compared to > only 20% for batteries. I do not recall the reason why > hybrids are still using batteries. Safety? Difficult to > achieve smooth acceleration? > > Best regards, > > Vitaliy Energy density. Battery don't hold much power, but bottles of air contain even less. Tony -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist Gus S Calabrese Denver, CO 720 222 1309 303 908 7716 cell Please include and do not limit yourself to "spam2006". I allow everything with "spam2006" in the subject or text to pass my spam filters. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist