----- Original Message ----- From: "Robert M" <written_by@xxxxxxx> To: "List for Photo/Imaging Educators - Professionals - Students" <photoforum@xxxxxxxxxxxxxxxxxxxxxx> Sent: Saturday, June 11, 2005 12:30 Subject: Re: There are two kinds of fools : >>>There are two kinds of fools: One says, "This is old therefore it is : good." The other one says, "This is new therefore it is better." - William : R. Inge>>> I find that technology pinnacles at different times - some things are getting better, some are feeble attempts to modernise and improve on stuff that was perfected long ago. think of the wheel ;-) anyone know anything about external combustion? NASA is currently attempting to make a biggie they can hang up in space for something or other.. it's an ancient technology that produces motive force from a temperature differential using very few moving parts. It is benefiting from modern manufacturing techniques and the like, but the technology is *OLD*. Older than fax machines even! ;-) I guess for me the thing is not whether something is old OR new, it's that it's efficient. k