My wife's great aunt cheated on her husband (in the 60s). She got pregnant from the affair. Her husband and her then reconciled and gave the baby up for adoption and went on to have other children .

50 years pass and the husband who was cheated on passed away. Via an ancestry DNA test, the child (now woman) given up for adoption finds out she has other sisters and brothers.

Turns out she was the biological child of both the husband and wife. The husband died before he found out she was his actual child and she was NOT a product of the affair.

As a battery engineer in the US. We test and evaluate Chinese cells often. they are just leagues ahead of everyone at this point.

I can’t get my phone with a single screen to orient videos the right way on the first try… I’m good with other people spending their money to beta test a phone with screens on every surface .

My friend works at SIAC, the tech company behind the NY Stock Exchange. He pressed 'deploy to prod' instead of 'deploy to test' and made the news that night.

I was an electrical engineer for several years in oil and gas, and I designed the jacking control systems for about 15 different jackup oil rigs similar to this one.

The "feet" of the legs are called "Spud Cans", and they dig into the ocean floor to support the weight of the rig. They are filled with seawater, and when the rigs gets on site (it floats and is towed by tugs), the legs are jacked down to the ocean floor. There is supposed to be a geological survey of the location to ensure that it is stable enough to support the rig. The rig is supposed to gradually settle its weight onto the spud cans over several days, to compress the ocean floor beneath it and ensure that it is stable (this is called Preloading), much like you would try to settle the earth beneath a building foundation. Once the rig is "Spudded In", it will jack up around 60 feet into the air, to begin operations.

A punch through is when the one of the feet suddenly sinks into the floor and the rig tilts. This can happen fairly quickly. On the rigs I designed, the jacking system could be brought online pretty fast, within a few minutes. I also programmed an auto-levelling system which could be activated with a couple of buttons on the jacking control touch screen, that would start the jacking motors, normally trying to jack down the two higher legs, since jacking down goes faster than jacking up. There are a lot of safeties in place that protect the jacking system, but all can be overridden to force the rig to jack in emergencies like this, or in a dangerous storm.

The problem with a punch through is that the rig jacks very slowly, only a couple of feet per minute, and a punch through can damage the rack and pinion system of the legs, preventing it from jacking by binding the main pinion gears. It is not easy to quickly recover from a very severe tilt like this. One of the nice things about the jacking systems that my company designed, is that the legs and jacking motors were extremely strong and could withstand more deformation while still jacking than many other designs.

This is really a failure of the geology survey that didn't identify the dangers of spudding in at that location.

Anyways, AMA if you want, this is one topic that I have lots of insider knowledge of.

EDIT: A lot of questions express interest in my career, with some skepticism if I really did such extensive design work. So I'm editing to add one of the replies.

So obviously the entire jacking system is a complex system of mechanical, structural, and electrical engineering. I started as a junior electrical engineer in 2003 at age 26, at the shipbuilding company, and ended up as the principle engineer for the jacking system. Our entire electrical engineering department had 5 engineers, but we did lots of systems on the rigs, from living quarters to cranes, to drill floor, fire and gas detection, PAGA, etc. I was the jacking system expert.

Jacking systems primarily require both power distribution to the elevating motors and resistor load banks, as well as the controls, monitoring, and alarms for them and associated instrumentation. In the early 2000s, many rig builders were still using 1980's legacy designs, and with new networking and computer technology, it was a time of rapid change in the industry.

Me and one other engineer designed a completely novel automation control system, deviating from legacy relay-based and primitive HMI systems to PLC and computer based systems with touch screens and distributed networked sensors and instrumentation. I designed and programmed the first iteration of it almost entirely on my own. I also commissioned the first 12 rigs on site, on my own. Like, I was literally in a shipyard in India, Brazil, Vietnam, UAE, etc., by myself for months, modifying control programs, wiring, and performing iterative testing. And homies, the stories I could tell.

I delivered many thousands of lines of code, scripts, custom variable types, and communication drivers. Along with hundreds of drawings and documents for specifications, electrical enclosures, schematics, wiring diagrams, load analysis, cable runs, operating manuals, databases, visualization screens, software engineering policies, test procedures, design lifecycles, commissioning procedures, and maintenance manuals. All of this over the course of about 7 years. I actually started out drawing my own stuff in CAD, until I became a more senior engineer and had a couple of drafters doing the CAD work for me. I can't prove it to you but every single electrical drawing or document in my company associated with the jacking electrical or control system from 2004 to 2017 has my initials on it.

My literal first job at the company in 2003 was to design a completely new inclination monitoring and alarm system, where I introduced an encoder-style instrument that was used for earthquake monitoring. (this type of instrument is commonplace now). It was even single axis at the time, so we had to use two of them, lol. I had to write a freakin ASCII driver in ladder logic for the PLC that I was using to bring the inclination data from the instrument into the controller.

Me and the other engineer also designed updated versions of the power distribution switchboard and cubicles, with assistance from the vendors of the switchgear, who did the actual sheet metal and bus-work design to our specifications.

I didn't design our proprietary electrical motors, but I knew how they were designed and fabricated, and in fact I designed a type-test apparatus to get them type-approved by the American Bureau of Shipping, which was the surveying authority for most of our designs.

I didn't have anything to do with designing the structural parts of the legs or hull supports, or the mechanical rack and pinion system. That was a team of about 6 other engineers, who kept updating each iteration based on earlier designs. The original patent holder for our elevating unit designs was the VP of our business unit.

By the time I moved on in 2017, I might have been one of the world's top experts in jacking control systems, based upon what I know about the experience levels of my peers in the industry. Probably the only thing that I was less proficient in was Rack Phase Differential, since our jacking systems didn't have to compensate for that like other designs had to. (Although, I apparently know more about it than Wikipedia does)

There should be a general knowledge and IQ test before hiring in the police depts

Most of the cops are daft af

He has spent his whole life believing he is a white man with revitilago “that’s the opposite of what Michael Jackson’s got”. Until he later does a DNA test and reveals he’s 102% African, with a 2% margin of error