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|    rec.crafts.metalworking    |    Metal working and metallurgy    |    215,319 messages    |
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|    Message 214,696 of 215,319    |
|    Bob La Londe to Bob La Londe    |
|    Re: WHAT THE HECK IS GOING ON HERE?    |
|    17 Aug 25 10:46:21    |
      From: none@none.com99              On 8/17/2025 10:44 AM, Bob La Londe wrote:       > On 8/17/2025 9:42 AM, Jim Wilkins wrote:       >> "ABLE1" wrote in message news:UuloQ.18286$S8Ne.4273@fx45.iad...       >>       >> On 8/16/2025 4:55 PM, Bob La Londe wrote:       >>> WHAT THE HECK IS GOING ON HERE? It looks like the two streams are       >>> bouncing off of each other.       >>>       >>> https://rumble.com/v6xod8s-whats-the-heck-is-going-on-here.html?       >>> mref=1sqt4y&mc=42lue>       >>       >>       >> Answer:       >>       >> There are two(2) things going on!!       >>       >> !) Bob only typed two sentences on this posting!!       >>       >> 2) Magic!!       >>       >> That is all I have!! :-)       >>       >> Les       >>       >> --------------------------------       >>       >> Cameras don't have binocular (stereoscopic) depth perception, the two       >> streams may pass without touching. Lack of depth perception is the       >> reason the movie / TV stunt of punching someone in the jaw works, the       >> victim reacts when the fist passes in front of them.       >>       >> Close one eye and try touching things from the side with a finger.       >> Your one open eye gives you an answer that may be wrong.       >>       >> https://en.wikipedia.org/wiki/Depth_perception       >>       >       > Its not a trick. At least not that kind of trick. There are in fact       > two laminar streams impacting and deflecting from each other. Two cues       > in the video support this. (1) There is a visible interface line       > between the streams. (2) Periodically a perturbation or disturbance of       > some kind cause the two stream to converge for a fraction of a second.       > It is what it looks like. Two laminar flowing streams making contact       > and deflecting from each other.       >       > I suppose I could have recorded a longer video (drained about 2 gallons       > this way), but I thought everything necessary to at least know what is       > happening if not the cause was available in the 9 second video, and       > making a longer video would have seemed like useless auto flagellation.       >       > This fluid started out as a mix of distilled water and about 5% SC520       > cutting fluid. The tank has not been cleaned in a couple years. I       > know. My bad. #2 way oil has been oozing out of the machine every 15       > minutes when the automatic oil is activated to lubricate the cast iron       > ways and ball screws. I suspect it is more way oil than water, but I       > have kept the tank topped off with water and cutting fluid. I haven't       > worried to much about it since I have ONLY use this particular machine       > for engraving for the last several years.       >       > Jim, I am disappointed. In spite of your tendency to start off with a       > new topic at some point temporally displaced from the tangent point in       > some of your unrelated replies to topics, I figured this one would be       > right up your 7-10 split.       >       > One person (in a forum) said with authoritarian demeanor that, "This is       > a non Newtonian fluid." I neither agree nor disagree. I just don't       > know. It was an interesting anomalous visible occurrence I found       > interesting enough to waste 9 seconds recording video, and an       > indeterminate number of additional seconds sharing the video with others.       >       > While it was happening I cut 3 molds that will be shipping to Hawaii.       > The day before I spent most of the afternoon cleaning out two machines       > and adding a coolant tap for a wash down hose. I'll finish cleaning out       > this machine, and add a tap for a coolant hose to it today and tomorrow.       > I'm also going to do an experiment with a dual tank design, that       > should isolate fines and floating oil to the first tank. If I like how       > it works I may change all/most of my machines to a dual tank design.       >       > Now I am off to 3D model some fish hooks. Yeah really.       >       > If I have time later today I'll make a one piece bulkhead connector for       > joining the two tanks. Well, one piece body. It will still have two       > nuts and two gaskets as well. Well either that or go fishing.       >       >                     I wonder if its possible the two streams are just flowing through each       other? The visible cues would be the same.              --       Bob La Londe       CNC Molds N Stuff              --       This email has been checked for viruses by AVG antivirus software.       www.avg.com              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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