I am unhappy to report that gravity is changing, it is no longer constant.

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Sure John can knock one of these up from scraps in the lab?

Cal: I was very pleased to find out at my last medical I was 1/2" taller than when I was previously measured (35 years previously). But now I'm scared what the next decade will bring listening to you lot. I think their may be advantages to my having been rubbish at sport as I kid...
 
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Sure John can knock one of these up from scraps in the lab?

Cal: I was very pleased to find out at my last medical I was 1/2" taller than when I was previously measured (35 years previously). But now I'm scared what the next decade will bring listening to you lot. I think their may be advantages to my having been rubbish at sport as I kid...
My path in sports was a tad different from yours. Got me into the university. Sure wasn't my academics...
John
 
People like us forum members, who typically spend a lot of time sitting around with soldering irons, oscilloscopes, or guitars, are not famous for being physically fit. 🙁

If my brain had been wired to think it was terribly important to hit little balls thrown through the air, or chase a soccer ball all over a field, I might have been a lot fitter. But those things stopped being interesting by the time I was maybe 9 years old. Trying to figure out the correct value of bias resistor to use with a BC148C, a 9V battery, and a 2.2k collector resistor was already much more interesting. 🙂

(Without a calculator or even a VOM, I'd already figured out by then, that if you simply multiply the value of the collector resistor by the transistor's DC current gain, and wire a resistor of that value between collector and base, the transistor will be nearly centre-biased, and the bias point will be pretty stable. In this case, a 1Meg base resistor will do the job. What fun when you're 8 or 9!)

Unfortunately for me, decades later, most of the things I find interesting are still sedentary activities. Reading, guitar playing, fiddling with electronics, using a computer, and so on.

-Gnobuddy
 
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Cal: I was very pleased to find out at my last medical I was 1/2" taller than when I was previously measured (35 years previously). But now I'm scared what the next decade will bring listening to you lot. I think their may be advantages to my having been rubbish at sport as I kid...
I was referred to a medical specialist whose physician extender (that is what they call the assistant who really has few or no skills) measured my height using a well worn out apparatus getting a height of 69”. Elsewhere I measure 73”. Thus proving it can be piled that high!

So you might not have grown, the equipment might just have been better.

Of course as we age we are expected to shrink.

(That brings up the joke about the just wed innocent who on the morning after starts crying. Asked why she responds “We used almost all of it up last night.”)
 
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I cannot believe what outlook just told me on my old laptop.

"Coming Soon will be going away shortly"
Me: who cares, go away NOW!!

Gnobuddy: dead on..

Milsdrewbulch: agreed, unfortunately I tossed a left hip and right shoulder labrum back in the day, so Isometrics are about the best I can do. I'm workin on it though.

Ed: Expected to shrink? Yah, tell that to my gut. At least the really important stuff taint shrinkin...





You know...the bills...

John
 
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It always was and always will be “you get what you pay for”.
Agreed. One day I needed a small mixer, bought a behringer UB type, two mike inputs for 70 bucks.. Then said "self", this thing is cheaper than the knobs I would need if I made my own, so better buy another one..so did for 60 bucks. Neither have failed yet, maybe 12 years..

I bought a xenyx 2222 USB for 8 mic input and 9 cheap behringer mics, I do volunteer work in my village and have needed this capability, it's not real high end stuff. Now since I started this thread, I'm getting directed ads for more behringer mixers. Honestly, I may just buy another unit, perhaps a 6 mic unit, they're like 180 bucks.. Buying a second unit is far better than an extended warranty, it guarantees the first will never fail.

Unfortunately, that didn't work with my car...despite having seven additional warranties (they keep calling me), I still need repairs. And when I call the insurance company, they insist on asking how much gas I have in the tank, apparently to decide if the car is totaled..

John
 
In these final few decades here on terra firma it is good to resist the forces of entropy and thermodynamic heat death, but you must also remember that resistance, while helpful in the short term is futile in the long term. Stay active, walk, exercise if you like, manage your diet and weight...just realize the reaper wins in the end.
 
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In these final few decades here on terra firma it is good to resist the forces of entropy and thermodynamic heat death, but you must also remember that resistance, while helpful in the short term is futile in the long term. Stay active, walk, exercise if you like, manage your diet and weight...just realize the reaper wins in the end.
At lunch, I will walk for 30 minutes away from my building, when my phone timer buzzes, turn around and walk back. It's great to remain on site, as others are jogging, walking, bike riding so if I drop to the ground clutching my chest, someone will see. So I do get a tad over three miles at a hard pace. When the weather doesn't agree, I will do 6 laps in the building, same distance. I actually see fewer people in the building.
I'd rather do a mile in the pool, but given the really bad "drivers", I got sick of head on collisions.

John
 
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I put a 6 yard long roll of 50 inch wide carbon cloth in my cart on amazon. 200 dollars, seems consistent so far.

Will have to look into the strength of panels made with foam and carbon cloth/epoxy. It would be interesting to make rack and speaker cabs with the stuff, major gravity fighters.. Was thinking aluminum hexagonal grid stuff, but if the foam is good, why bother.

Might have to put a force/deflection rig together to actually measure what I'm doing...

Or just do it and who cares?? I actually like that better.. I don't need no stinkin numbers!!!!

John
 
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So you might not have grown, the equipment might just have been better.
Possibly, but I'll take that half inch for now until age does it's bit.
Milsdrewbulch: agreed, unfortunately I tossed a left hip and right shoulder labrum back in the day, so Isometrics are about the best I can do. I'm workin on it though.

I never did weights until I turned 50 so now am actually stronger than I've ever been (so merely weak rather than weedy 🙂 ). Let's see how long everything functions. My dad was a sporty type and kept himself fit but in his late 70s his bones started crumbling, which I blame on his diet not having enough calcium. Either way nothing as grumpy as a golfer who cant swing any more. I don't golf so won't have that.

Back on track. I used to bin dive in my aerospace days for Aerolam offcuts. The sexy looking kevlar honeycomb was harder to find. Never managed to make anything useful out of it though. Reckon foam cored board should be strong enough
 
JN,

I suspect you only need carbon fiber on the outside of the case. Normal glass fabric should do on the inside.

Also for the filler inside we don’t use foam we use lightium. Hard to find, quite expensive but well worth it! (Helium based foam!!!)

Failing that “Tool Chemical Co.” near Detroit will sell to you unexpanded aluminum honeycomb, if I recall correctly. Very useful to make the strong but light case baseplate. But then I got my last piece 50 years ago. https://www.compositesworld.com/suppliers/tool-chemical-composites-tcc

For the edge attachment we use extruded aluminum channel.
https://www.diyroadcasesstore.com/amp/categories/Extrusions/

Also Look up “Sessions” hardware.
https://www.nielsenhardware.com/online-store/

It seems the older you get the more you need corner protectors.


ES
 
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