That makes sense... Nitrogen is a noble gas right? (Year 10 Chemistry, thank you very much):P
-James -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Tom Richardson Sent: Sunday, 23 June 2002 12:59 PM To: [EMAIL PROTECTED] Subject: Re: nitrogen filled tires Yes. A frame full of helium would have more mass than a frame under complete vacuum, therefore gravity would exert a larger force on the helium cos of one of Newton's laws, Force = mass * acceleration (ie even though helium is lighter than air, it's still heavier than nothing) You can't really use vacuum filled tyres though :) Aren't these digressions great? Who'd have thought there was a use for high school physics - Tom PS Maybe one of the other reasons why nitrogen is used in some forms of motorsport is that it's inert, incase of a fire? mark krawczuk wrote: >hi, would u be better of with vacuum in the frame? > > mark k >----- Original Message ----- >From: "james wade" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Sent: Sunday, June 23, 2002 12:39 AM >Subject: RE: nitrogen filled tires > > >>Ive heard of bmx racers using helium? These days those guys are weight >>crazy and all, so yeah its like they want a lighter bike and all that. >>I even heard of a guy putting helium inside his frame (ie. inside the >>tubing). talk about kooky. >> >>-james >> >>-----Original Message----- >>From: [EMAIL PROTECTED] >>[mailto:[EMAIL PROTECTED]] On Behalf Of mark >>krawczuk >>Sent: Saturday, 22 June 2002 8:04 PM >>To: [EMAIL PROTECTED] >>Subject: Re: nitrogen filled tires >> >> >>i believe that some racing pushbikes use nitrogen in the tyres? >> >> mark k >>----- Original Message ----- >>From: "James Cox" <[EMAIL PROTECTED]> >>To: <[EMAIL PROTECTED]> >>Sent: Saturday, June 22, 2002 1:32 PM >>Subject: RE: nitrogen filled tires >> >> >>>Actually I think they do that to maintain a constant tyre pressure >>>since nitrogen is less likely to expand with heat increases, a common >>>practice >>> >>in >> >>>some forms of motorsport. If he really intended to make the tires >>>lighter he should have uses helium. >>> >>>Jame Cox >>> >>> >>>>No >>>>I have only ever seen a bloke fill his tyres with nitrogen to make >>>>them lighter, similar to bridge construction (true story) >>>> >>> >>>_________________________________________________________________ >>>Send and receive Hotmail on your mobile device: http://mobile.msn.com >>> >>> >>--membersozdat------------------------------------------------------- >>OZDAT Mailing List Please Note:- >>Send (un)subscribe requests to [EMAIL PROTECTED] Send >>submissions to [EMAIL PROTECTED] No unauthorised >>redistribution of this email >>http://www.ozdat.com/ozdatonline/index.htm >>http://www.ozdat.com/ozdatonline/listindex.html >>http://www.mail-archive.com/[email protected]/ >>--------------------------------------------------------------------- >> >> > > --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ --------------------------------------------------------------------- --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
