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    Nerd Alert

    1933 or 35 electrical engineering to bend your brain. They built and calibrated a photographic oscilloscope to measure spark voltage and current! 8 years of tech advancement. https://nvlpubs.nist.gov/nistpubs/jres/19/jresv19n4p401_A1b.pdf edit - further to the UV light ionization enhancement...
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    Nerd Alert

    I finally found the Briggs and Stratton 3rd electrode in their spark gap tester Mystery. The teaser electrode doing some pre-ionization for spark consistency. Dimensions etc to make it. NACA report 202 from 1925!!! about 4 pages from the end. Briggs goes way back. I found a couple...
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    Nerd Alert

    The stir welding is really neat. Odd to think of metal in a plastic state and then weld bonding at a relatively low temperature. I believe it's related somewhat to the fluid(?) behaviour of metal in high energy ballistics or maybe that's altogether different again. I wonder if the lower heat...
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    Nerd Alert

    Not Laser Welding, but Friction Welding! Small world story. When I was a kid I toured the nuclear research plant where my uncle worked, turns out, for his whole career. Radiation tags and the whole bit. Seeing this vid tweaked a memory of him pointing at a setup in a machine shop and saying...
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    Nerd Alert

    Snowblower Chute Control Came across this expensive Honda repair vid that happened to be about the electric chute control. Great minds think alike and fools never differ. On the Honda there is a 4 quadrant joystick each quadrant likely with a standard C.-N.C.-Common terminal configuration...
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    Fruit tree holding on by a thread, client wants to get another year out of it. Thoughts?

    Couple thoughts. There is a chance that the tree was in a final year distress heavy overproduction of fruit cycle last year. I'm not a disease expert to offer any particular help in assessing whether that's your case. Trees with "cancer" often do this. Temper the cost of propping with this...
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    GoPro cameras for tree work

    Speak the name in trivia three times and it shall emerge
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    GoPro cameras for tree work

    Smarter Every Day has a stable chicken head vid. I think in people stabilizing your head staves off motion sickness caused by vestibular system eff ups. I don't consciously stabilise my head when dirt biking - just realised it after the fact by seeing video playback. If you want a direct...
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    X15 coolant loss

    Head gasket - check for any milkiness in the engine oil, when its bad steam comes out the exhaust. My bet is a tiny leak that seeps at pressure/temp and evaporates immediately so you don't see it but you smell it. Best odds hose junction or weep hole on failing water pump. Maybe rad cap, less...
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    New “ to me” Husqvarna Batteries?

    Pay mind to what age battery packs you're comparing. Capacity and probably also therefore oomph during that capacity diminishes directly with number of charge/discharge cycles. On electric cars reduction to 80% capacity is considered the practical usage limit for degradation. Cell phones...
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    Looking for help regarding cabling hardware size

    What's the thoughts about weakening at the drilled hole: 1)simple mechanics less material and different shape 2) expected rot/more weakness in addition to 1), pre-compensated for in specs, or 3) some assumed ratio of additional diameter growth beating out/equalling/or not the rate of rot...
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    Fu*%face Von Clownstick

    I met a 20 something kid from Belarus who didn't know Lech Luenza from Poland, glasnost, perestroika or Gorbachev. They were erased from history for his upbringing. Never to be spoken of. Not a desirable kind of society IMO. Another guy keen on the Ukraine conflict was angry that Ukraine...
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    GoPro cameras for tree work

    I custom shaped a styrofoam wedge to go between the side of the chin/mouth protector on the mx helmet and the camera and strategically used precise duct taping only. I added a replaceable lexan cover for the lense to prevent mud scratches when cleaning. Sometimes a freak blob would land and...
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    Do I have a problem?

    Someone needs to tell that website guy with the historical museum-like compendium of climbing gear to add all these modern devices to the collection. Times have sure changed in recent years. And there's multiple versions to address!
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    Drone use

    For the weight and size issue one might be forced into the two stage solution ie first the smaller weight with smaller usually braided heavy fishing line, then use that to pull a regular throwline, then the rope. The smaller weight and line first reduces the requirements on the drone and also...
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    Drone use

    Palms are probably an ideal application choice because the drone and line come in from above the tree, guessing on dead center, and the drone wouldn't have to go among the leaders to get a particular crotch. ?
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    The Wildly Infectious Banana Plague

    I saw another documentary saying that there was one major banana type change due to a disease wipeout situation. Didn't get far enough yet to see if this vid covers that info.
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    GoPro cameras for tree work

    A fundamental configuration choice is somewhat forced by the form factor gopro chose to use, pancake. My helmet cam was a tube shape mounted beside my jaw not unlike Bill neck-of-steel Mason, but of course tiny. Gopro is best for chest, forehead or helmet top mast. Sticking out sideways...
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    GoPro cameras for tree work

    I'd split it into 3 parts. On screen/host personality, videographer skills and then hardware. Gotta get your self a screen handle like "Buckin' ...." etc. Then practice your MTV or DJ voice and mannerisms. Just kidding. maybe On the hardware side the dizzy/skakey-cam thing is real. It...
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    Looking for help regarding cabling hardware size

    An engineering interpretation of the numbers implies to me when I see 100 lbs 1/4" hardware 2" wood that its a sizing ratio of sorts between the diameter/wood strength and the hardware strength. Perhaps based on trading off weakening the wood by drilling (larger) hole and corresponding steel...

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