Home |
Search |
Today's Posts |
#21
posted to alt.sailing.asa
|
|||
|
|||
Capt. Rob is champion all time mostest poster....
"Maynard G. Krebbs" wrote in message
... On Sat, 10 Feb 2007 16:50:39 -0500, "Ellen MacArthur" wrote: "Mundo" wrote Now there's a guy I miss, Jax that is. It was great fun let him present himself as an expert and then tear him to shreds. LOL...I miss Jax's posts. He'd argue for days and seemed to always be unaware he was arguing from a false basic assumption. The Circus was never as entertaining as Jax's convoluted logic. LOL Mark E. Williams I liked JAX's gun threads. Only time I ever heard a .380 referred to as "large bore." -- jlrogers±³© |
#22
posted to alt.sailing.asa
|
|||
|
|||
Capt. Rob is champion all time mostest poster....
Edgar wrote:
I particularly enjoyed his efforts to convince us that he could prove by trigonometry that a piston travelled further on the upstroke than the downstroke (or maybe it was vice versa) Edgar, sorry to burst your bubble, but this was one case where jaxie was right! The piston travel from 90 degrees to 270 degrees is different from 270 to 90 degrees. This is one of the "bar puzzles" that is counter-intuitive, since we would normally think in terms of upstroke versus downstroke, or 0-180 versus 180-0, which is quite different from "top of cycle" versus "bottom of cycle." (I suppose it depends on which bar you hang out in...) Actually, IIRC the discussion should have had to do with piston velocity, but jaxie lured Nav into this trap. Jaxie had a few of these, a few of them correct, like catenaries, and most bogus, like his understanding of Einstein. |
#23
posted to alt.sailing.asa
|
|||
|
|||
Capt. Rob is champion all time mostest poster....
Jeff wrote:
Edgar wrote: I particularly enjoyed his efforts to convince us that he could prove by trigonometry that a piston travelled further on the upstroke than the downstroke (or maybe it was vice versa) Edgar, sorry to burst your bubble, but this was one case where jaxie was right! The piston travel from 90 degrees to 270 degrees is different from 270 to 90 degrees. This is one of the "bar puzzles" that is counter-intuitive, since we would normally think in terms of upstroke versus downstroke, or 0-180 versus 180-0, which is quite different from "top of cycle" versus "bottom of cycle." (I suppose it depends on which bar you hang out in...) Actually, IIRC the discussion should have had to do with piston velocity, but jaxie lured Nav into this trap. Jaxie had a few of these, a few of them correct, like catenaries, and most bogus, like his understanding of Einstein. ...and his fictitional dates that he picked up at "21".... |
#24
posted to alt.sailing.asa
|
|||
|
|||
Capt. Rob is champion all time mostest poster....
"Mundo" wrote Does that photo still exist? I seem to remember photoshopping it a little. I googled JAXAshby and found the website by opalgal. I guess that was his girlfriend at one time. When he broke up with her he called her fat and tattooed and bitch. So she posted that Speedo picture of him. She still has it on her website in a link. But, it's not a real picture. It's a bunch of zero's and one's but from a distance it looks like a picture. JAX has taken down his AOL website where he used to have some more pictures. That's what Opalgal said at least. She's very unattractive. Cheers, Ellen |
#25
posted to alt.sailing.asa
|
|||
|
|||
Capt. Rob is champion all time mostest poster....
"Jeff" wrote in message ... Edgar wrote: I particularly enjoyed his efforts to convince us that he could prove by trigonometry that a piston travelled further on the upstroke than the downstroke (or maybe it was vice versa) Edgar, sorry to burst your bubble, but this was one case where jaxie was right! The piston travel from 90 degrees to 270 degrees is different from 270 to 90 degrees. This is one of the "bar puzzles" that is counter-intuitive, since we would normally think in terms of upstroke versus downstroke, or 0-180 versus 180-0, which is quite different from "top of cycle" versus "bottom of cycle." (I suppose it depends on which bar you hang out in...) At the risk of starting this thread again I do not think you are correct. The geometry of 90-270 is identical to that of 270-90 and so is 0-180 and 180-0. |
#26
posted to alt.sailing.asa
|
|||
|
|||
Capt. Rob is champion all time mostest poster....
Edgar wrote:
"Jeff" wrote in message ... Edgar wrote: I particularly enjoyed his efforts to convince us that he could prove by trigonometry that a piston travelled further on the upstroke than the downstroke (or maybe it was vice versa) Edgar, sorry to burst your bubble, but this was one case where jaxie was right! The piston travel from 90 degrees to 270 degrees is different from 270 to 90 degrees. This is one of the "bar puzzles" that is counter-intuitive, since we would normally think in terms of upstroke versus downstroke, or 0-180 versus 180-0, which is quite different from "top of cycle" versus "bottom of cycle." (I suppose it depends on which bar you hang out in...) At the risk of starting this thread again I do not think you are correct. The geometry of 90-270 is identical to that of 270-90 and so is 0-180 and 180-0. Oh My! Jaxie hasn't posted here in over 2 years and he's still catching people with this one! The geometry is clearly not the same for the top and bottom parts of the cycle. Draw it out - its just a matter of trig. The piston moves slightly more than half its travel going from 0 (TDC) to 90 degrees. As an interesting degenerate case, consider when the connecting rod is the same length as the crank offset (I forget what that is really called). In that case, the piston will reach the center of the crank at 90 degrees and stay stationary for the entire bottom half of the cycle. |
#27
posted to alt.sailing.asa
|
|||
|
|||
Capt. Rob is champion all time mostest poster....
"Jeff" wrote in message . .. Edgar wrote: "Jeff" wrote in message ... Edgar wrote: I particularly enjoyed his efforts to convince us that he could prove by trigonometry that a piston travelled further on the upstroke than the downstroke (or maybe it was vice versa) Edgar, sorry to burst your bubble, but this was one case where jaxie was right! The piston travel from 90 degrees to 270 degrees is different from 270 to 90 degrees. This is one of the "bar puzzles" that is counter-intuitive, since we would normally think in terms of upstroke versus downstroke, or 0-180 versus 180-0, which is quite different from "top of cycle" versus "bottom of cycle." (I suppose it depends on which bar you hang out in...) At the risk of starting this thread again I do not think you are correct. The geometry of 90-270 is identical to that of 270-90 and so is 0-180 and 180-0. Oh My! Jaxie hasn't posted here in over 2 years and he's still catching people with this one! The geometry is clearly not the same for the top and bottom parts of the cycle. Draw it out - its just a matter of trig. The piston moves slightly more than half its travel going from 0 (TDC) to 90 degrees. As an interesting degenerate case, consider when the connecting rod is the same length as the crank offset (I forget what that is really called). In that case, the piston will reach the center of the crank at 90 degrees and stay stationary for the entire bottom half of the cycle. That is a situation impossible in practice. If you just draw it out with lines on paper you will find that the piston does not move at all once it is at the centre since everything would just revolve around it. I am beginning to think that you invented Jaxx just to have a bit of fun with us... |
#28
posted to alt.sailing.asa
|
|||
|
|||
Capt. Rob is champion all time mostest poster....
Edgar wrote:
I particularly enjoyed his efforts to convince us that he could prove by trigonometry that a piston travelled further on the upstroke than the downstroke (or maybe it was vice versa) Edgar, sorry to burst your bubble, but this was one case where jaxie was right! The piston travel from 90 degrees to 270 degrees is different from 270 to 90 degrees. This is one of the "bar puzzles" that is counter-intuitive, since we would normally think in terms of upstroke versus downstroke, or 0-180 versus 180-0, which is quite different from "top of cycle" versus "bottom of cycle." (I suppose it depends on which bar you hang out in...) At the risk of starting this thread again I do not think you are correct. The geometry of 90-270 is identical to that of 270-90 and so is 0-180 and 180-0. Oh My! Jaxie hasn't posted here in over 2 years and he's still catching people with this one! The geometry is clearly not the same for the top and bottom parts of the cycle. Draw it out - its just a matter of trig. The piston moves slightly more than half its travel going from 0 (TDC) to 90 degrees. As an interesting degenerate case, consider when the connecting rod is the same length as the crank offset (I forget what that is really called). In that case, the piston will reach the center of the crank at 90 degrees and stay stationary for the entire bottom half of the cycle. That is a situation impossible in practice. Hmmm. Is it really impossible? I think you might be able to. But it really doesn't matter, its just a degenerate case to show clearly that the geometry is not symmetrical. If you just draw it out with lines on paper you will find that the piston does not move at all once it is at the centre since everything would just revolve around it. The problem in this case is that on the upstroke there is no force that raises the piston. If, however, you made the con-rod a tad longer then it would clearly show almost all of the travel in the top half of the stroke. I am beginning to think that you invented Jaxx just to have a bit of fun with us... I think we all play the game of inventing a "straw man" to argue with. Republicans do it all the time by casting the typical Democrat as an ultraliberal that in truth was only found with a few hundred yards of Harvard or Berkeley for a few milliseconds about 40 years ago. (Actually, every now and then I go to party where I encounter people like that, but then I live only a few miles from Harvard Square.) Jaxie was a living, breathing straw man that gave us all the opportunity to know that we are at least smarter than one person. |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
Expanded Captain's List. | ASA | |||
Capt. Neal is DEAD! OMG! | ASA | |||
Capt. Mooron, a pale shadow of a man? | ASA | |||
Capt. Neal vs Lady Pilot. | ASA | |||
Bobsprit's post to another newsgroup | ASA |