robin hill robinhillbaesystemscom tue 27 aug 2002 101536 0500 est jay lake wrote second one could make assumption ancient future civilizations would hydrocarbon based alternative fuel sources including seabed methane biomass usual suspects solar hydro etc could exploited decidedly lowtech ie emergent civilization basis however difficult conceive industrial civilization doesnt employ wheels axles bearings require lubrication im engineer robin anyone understanding vegetable lubrication breaks stress oil graphite lubricants reasonable choices high temperaturehigh rotation applications least prior extremely advanced modes chemical synthesis good point lot alternatives hydrocarbon products derived petroleum often developed replacement petroleum technology established growing industry plantderived plastics lubricants replicate materials previously created much easily within petrochemical industry vegetablederived lubricants used russians used sunflower oil lubrication systems tanks trucks second world war work done uk produce diesel fuel derived waste cooking oil fastfood restaurants jays correct opinion vegetable oil durable petroleum oil lack sophistication chemistry involved synthetic fuels lubricants continuously developed dont see problems synthetics ultimately matching performance conventional products rock oil runs plant oil derivatives developed fill gap parallel changes occur designs machines cope changes performance lubricants big concern technology ever lost reason recreating petrochemical industry scratch without petrochemicals going immediately plantbased synthetics would extremely difficult especially necessary recreate petrochemicalderived products lubricants fuels suspect bearing mind ingenuity human race would happen different pace imagine industrial revollution based example methane pig manure diesel oil sunflowers would get used machines smelling like pig farms fish chip shops robin hill steamy bess brough east yorkshire email attachments confidential intended recipient may also privileged intended recipient please delete system notify sender copy use purpose disclose distribute contents person yahoo groups sponsor 4 dvds free sp join httpusclickyahoocompt6ybbnxieaamvfiaa7gsolbtm unsubscribe group send email forteanaunsubscribeegroupscom use yahoo groups subject httpdocsyahoocominfoterms wed 28 aug 2002 091720 0000 zzzzteana steam