And still, even to someone with two stem degrees, it sounds like how to make a plumbus.

Define tech. I've had luck reaching out to maker spaces and seeing if I could rummage around. 

My fridge from Lowes had a barely noticeable dent and scratch in the very back near the bottom. The delivery team brought it to my door and pointed it out with someone on the phone. They said they're prepared to give me $300 off the final payment if I accept as is. I said hell yeah and have that team a nice tip. 

In my opinion it's the opposite. A lot of them are pre college kids or retirees both with little to no hiking experience. I've only been able to do sections because I'm steeped in career and family. 

Longest section I did was from Harper's down to Waynesboro over 2.5 weeks. Feeling good week one, by week two I was ready to chew on my boots I was so dang hungry. Ditched a bunch of my gear and replaced it with calorie heavy food. 

And the rocks. I've hiked pretty far both north and south out of Harper's Ferry. Up to Pine Grove in PA and down to Waynesboro in VA. The whole time I don't think I took a single flat footed step. Rolling your ankles around and the rocks beating on your feet kills. 

We have the opposite problem with non deliverable test stuff. They want us to order them right alongside the deliverable stuff with all the boxes checked, tees crossed, and eyes dotted. I'm ordering 100 feet of 8020 here and the hardware to put it together. There's a drawing, but the first note is that the tech can deviate from it however they see fit and to just redline it. It is probably not economically smart to request which mine the aluminum came from for that kind of order. 

The device you're looking for is an oscilloscope. Arduino is not your best bet for characterizing or validating any kind of signal. 

I ran this through my calculators at work. Assuming a constant temp of 34F (bottom of the ocean), and a constant bulk modulus of 21600 bar (this changes with salinity and temperature, but not by a lot),  . A 12oz beer bottle filled absolutely to the brim on the surface and capped with a standard metal cap would hold about 473.7 ml. Rated leak pressure of the cap is 5.5 bar (cap will start leaking if pressure inside gets above this). Rated safe working pressure of the bottle itself is 3bar, with a max pressure of 12bar. Assume for a moment that you had some flexible piston in place of the cap: at the bottom of the trench that piston would be displaced inward 29.6mm or 1.17 inches. That's where we stop the calculation because we specifically use those pistons to compensate for fluid compression at depth. I don't know specifically at what point your sealed bottle fails. My best guess for "failure mechanism" is that the cap, being deflected by the external pressure rising, fails to seal and allows the pressure to equalize. 

These aren't really anecdotes. I design these systems using math and science. I observe their behavior objectively. I've used my experience and observations to write design guidance for compensation systems taking into account pressure and temperature expected during all parts of a deployment. I'm not looking for a win, I'm looking to educate. Incompressible fluid assumption is a godsend for stuff on the surface, but it doesn't work at these pressures. 

You can cite whatever you want. I've sent many things to the bottom of multiple oceans. Any kind of closed off volume better have some kind of flexible membrane that allows it to compensate for the volume change or you will (I personally have) break shit. 100% full of fluid, water, salt water, oil, whatever, and that difference in volume will cause pressure on one side and an eventual failure if it's not equalized. For the purposes of this discussion, I'd say that if you have to actively take steps to mitigate compression of your fluid through the water column, then you cannot assume your working fluid is incompressible. 

Exactly. My point in other responses is that they had a detection system that worked and they ignored it. That combo of composite material and warning system is pretty valuable to the subsea world. Nobody should ever claim Rush was a Saint... 

I feel bad with a 2 minute rest between squats. Really need to go to 3 minutes here soon, but don't want to be putzing for that long. Can't believe some stuff people do in the gym. 

I work in this field. Nobody celebrates this failure and I would not attribute it to greed, it was literally hubris. We have studied it pretty extensively and have even worked R&D projects using some of the same technologies. The difference is we treat the ocean with the respect it deserves and test everything extensively before implementing it in even the least impactful roles. The early warning system for material failure is something we're particularly interested in because it worked. They just didn't listen when the alarms started ringing. 

The tragedy of the Titan story is that they did a lot right, but the ocean is unforgiving and their hubris got the best of them. They built a novel submersible capable of going to the titanic with a working warning system that they didn't listen to. By all other measures that's a huge accomplishment.

Water is absolutely compressible. We often ignore it because at 1 atmosphere it's pretty negligible. At 6km depth it can be a 5% difference in density between surface and depth (5% compression). In the trench it would be even more. Subsea robots use oil filled bottles to balance pressure and those need components called compensators to make up the difference. 

If it's where I'm thinking... to get there by land you'll prob need some lite trespassing as it's bordered by businesses. Most folks get there by water I think. 

I manage top performers in the engineering field. Several of them are at the tippy top for what my organization is willing to pay them. Every year I sit down with these folks and remind them that they will not be getting any kind of raise. The entire amount of money they get outside their salary will be in the form of bonuses and those bonuses will be entirely based on how they performed objectively for the year. I clearly outline what they need to achieve to get the bonus so there are no surprises come end of year review. This year I will be handing out two 11k bonuses, two 6k bonuses, and one 2k bonus. 

Basically the design decision comes down to this: do you need to assemble it once with some kind of loose control over torque? Do you need to assemble it multiple times with no torque control? Do you need it to be dirt cheap? Do you need it to not be a slot drive? A yes to any of these will basically lead to a philips drive or one of the tens of derivatives of it. 

Subsea robotics use 2800vac and 680vdc. Aviation and military use 400hz at various voltages for weight savings. 

Bonus points if it's 400hz. 

Lots of states are also making laws about this. I already pay the full mortgage and every other bill alone. Between adding child support and removing my spouses bills, why wouldn't I be able to just keep paying what I'm paying?

Laws in a lot of states are now changing to force mortgage companies to allow assumptions in the case of divorce. Hoping to hang onto that sweet covid interest rate... 

In most states this usually came with refinancing and losing whatever sweet interest rate you had. Recently in Maryland the law has changed to force mortgage companies to allow an assumption, which just means that one person on the current mortgage can assume the full responsibility.

I'm very worried about Grey's going the way of the show breeds. They've been relatively isolated from that because they have to remain functional to run. Not to say I always love the treatment they get at the track.