Still sore after failing to invent the Apple pencil stabilizer nub, I got out my 3M Nexcare micropore paper tape and wrapped the stylus nib. It felt okay-ish, a bit too tacky so me and some friends in the mind thought we would wax it. I rolled the tip into the bum of a big white candle and sure enough, the grip on-screen was near perfect. Highly recommend this technique -in fact a friend of mine is selling a commercial solution based on this concept. I think the wax also reduces wear on the tacky paper tape. YMMV how long it lasts. May need to re-wax every writing session.
I was also thinking of how to reduce the fan noise from air conditioner compressor units. And I thought of a resonating netting tuned to white or pink noise of the opposite amplitude placed in front of the unit. Perhaps a PVC pipe system with an air gathering cone and back-turned tube ends that reverse the frequency of the noise by Lambda = v/f. Sine to Cosine. Not sure how that might work.
Was also thinking of a guitar learning aid called fret-buddy. You can make it yourself from modeling clay or salt dough. Basically, you want a long stretch of the material that you can imprint your fingers into and slide to change to the next pattern. It's a good way of learning a song thru help from muscle memory.
The string is threaded thru the frame loosely and placed against the machine which has a pattern of screws, movable to fit the racket. As the screws turn, the string tension increases, then the screws disengage by their pointy ends. The whole process takes 2 minutes, minus the time to self insert the strings you bought.
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