Talk:Wheel and axle

message: I removed the example of a wheel turning on a dead axle, because that is not a simple machine.
Also removed the picture for the same reason. I will find a suitable picture in due course, if no-one beats me to it.
: Not having much luck. There are a few pictures on the net of large wheel and axle mechanisms in the roofs of cathedrals that were used to lift the stones, they would be excellent examples if we could get one of those. Particularly because the wheel looks like a wheel, where most windlasses have a simple handle. Jimbowley 13:24, 6 November 2007 (UTC)
replies: text:  Finally found and uploaded a suitable uncopyrighted picture. Jimbowley (talk) 22:14, 9 May 2008 (UTC)
thread_title: Edit 18 June 2007 

message: If you were modelling a complex machine, the wheel could be modelled by just a sliding joint. But to model a 'wheel and axle' you would need a rotating joint and some arms (may not be perfect wording but I'm sure you get my meaning).
A sliding joint is fundametally different to a rotating joint. 
Which leads to the conclusion that a wheel is fundamentally different to a wheel and axle. Jimbowley (talk) 14:43, 10 July 2012 (UTC)
thread_title:  Kinematic argument for wheel not a wheel and axle 

message: I am questioning the functioning of any load carrying wheel so-called wheel before the invention of  a metal axle, which would have prevented wood-rubbing-wood friction and a resulting fire.  As important as this question is none of the axle, wheel or axle and wheel articles mentions it.Phmoreno (talk) 21:01, 25 September 2016 (UTC)
replies: text: I found the answer to the axle question here:  
According to Bela Sandor, professor emeritus of engineering physics at University of Wisconsin at Madison:
King Tut chariots appear to be the first mechanical systems which combine kinematics, dynamics and lubrication principles. "The bearings are built exploiting the modern principle of a hard material against a soft material, and by applying animal fat between the surfaces. The grease reduces friction and increases running duration," said Rovetta When set in motion, immediately after initial start-up, the friction between the wood of the bearing, the grease and the wood of the wheel pivot heat the grease.King Tut chariots appear to be the first mechanical systems which combine kinematics, dynamics and lubrication principles. "The bearings are built exploiting the modern principle of a hard material against a soft material, and by applying animal fat between the surfaces. The grease reduces friction and increases running duration," said Rovetta When set in motion, immediately after initial start-up, the friction between the wood of the bearing, the grease and the wood of the wheel pivot heat the grease.Phmoreno (talk) 18:38, 5 April 2017 (UTC)
thread_title:  Important question about axle 

message: If you're going to make up new parts to the age old wheel and axle then you need to explain wtf it is. 12.198.168.7 (talk) 18:06, 18 May 2022 (UTC)
replies: text: This edit fixed that, I believe. Just plain Bill (talk) 19:26, 15 November 2022 (UTC)
thread_title:  Hinge? 

message: Eeeeee 2A02:587:763B:6900:6508:AE66:489B:2A2F (talk) 14:22, 22 November 2022 (UTC)
thread_title:  Rerr 

message: I really appreciate to add greek translation so i can READ 2A02:587:763B:6900:6508:AE66:489B:2A2F (talk) 14:30, 22 November 2022 (UTC)
thread_title:  Need to add greek