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In China when a construction contract goes south

In China when a construction contract goes south

Oroville Spillways Phase 2 Update Final Dentate Placement

BSR says...

Sounds like someone didn't do their homework the first time.

https://www.mercurynews.com/2018/08/13/oroville-dam-see-before-and-after-video-of-construction-progress/

Also in January, an independent team of experts who reviewed the spillway failure concluded in a report that Department of Water Resources officials were “overconfident and complacent” and gave “inadequate priority for dam safety” for decades at Oroville.

They noted that main concrete spillway at the 770-foot tall dam north of Sacramento, in Butte County, was built in the late 1960s on poor quality rock. The spillway, only seven inches thick in some areas and not adequately anchored, cracked in multiple places in the following years, allowing water to flow underneath. On Feb. 7, 2017, water from powerful winter storms rushed under the massive spillway, which forced up its giant slabs and ripped a huge hole in the structure causing one of the most serious dam emergencies in California history.

SFOGuy said:

OK, I'll be that guy; the last overflow ripped away the last spillway like it was made of tissue paper; what's different about this one?

Drone footage captures devastation in Mexico Beach, Florida

Robot drywall installer

greatgooglymoogly says...

They don't even have robots to simply MOVE drywall around construction sites, which would be very useful. This is a long way of from general purpose construction use.

Robot drywall installer

Mordhaus jokingly says...

Don’t be too proud of this technological terror they've constructed. The ability to drywall a planet is insignificant next to the power of the Force.

ChaosEngine said:

It doesn't matter if it takes 10 times as long if it's 1% of the cost. This thing can work 24/7 without needing any breaks at all.

I'm in the process of designing and building a house right now (as in, I'm paying an architect and builder, not doing it myself).

If my builder came to me and said "hey, we can drop the labour cost of building by 50%, but your house will take an extra month", I'd sign that so fast his head would spin.

Track rebuild: Toronto Transit Commission finishes work fast

spawnflagger says...

It still took 2 months - I assume they had to wait a while for the lower layer of concrete to cure, which is just a jump cut in the video.
But it's nice to see a sense of urgency by working at night and not wasting time or people.
Here in PA, every PennDOT construction site that I've ever seen has a ratio of 1 guy working to 5 guys standing around.

Ants building "bridge" to attack wasp nest

serosmeg jokingly says...

If they don't expend their budgeted construction worker ants for 2018, their 2019 ant budget will be reduced by the queen. So they built an unnecessary 10 foot long bridge to go 3 feet.

lucky760 said:

Wha?

Why didn't they just walk directly to it across the ceiling?

Rapid Bridge Replacement

In a German tornado

Lukio says...

Yeah the damage was pretty substantial, but no houses were collapsed, mostly damage to the roofs. Because they don't construct houses held together by lumber and plasterboard.

Vision framework & CoreML demo identify objects in realtime

The Hopscotch Experiment

PlayhousePals says...

I saw this on the local news tonight. I didn't know it was Seattle! Makes me kind of surprised anyone participated. Must have been tourists ... and those construction workers? Must have been drunk ...

The Hopscotch Experiment

John Oliver - Mike Pence

newtboy says...

Legal, yes. Culturally accepted, not so much, slavery always had cultural opposition by the non ruling class. Natural, WTF?! Show me an example of pure non human slavery (not harems, not parasites) and I'll discuss it.

Granted, I don't know exactly how they measured, but his gene expression is what they measured, not his pure DNA. This goes to my point, that environment determines how your DNA is expressed, so twin studies are flawed from the onset by thinking they begin identical, they don't. They don't even start with identical DNA, just close.

"Genes and the environment", but not pure gene study....at least not like people think. People think twins are carbon copies, so one can be a control to study effects of what they're studying. That's not quite right. Certainly they are useful in genetic studies, but not that way. From before birth, they diverge in how nearly identical DNA is expressed. They might be good for finding what genes/traits need closer scrutiny, but only with large samples.

Grounds for individuals to (privately) discriminate, perhaps, but not (public) businesses....at least not in America. Our national identity is a melting pot of cultures, intolerance for the different is antithetical to that idea.


Gender, nope, you can totally choose that now.
Race, many people change their racial identity...Rachael Dolizal comes to mind....as does the term "passing".
Ethnicity, people pass as ethnic groups they weren't born into, sometimes unknowingly, daily.....again, Dolizal springs to mind.

So, I'll argue that all you mentioned for all intents and purposes are today often the result of free will and not beyond the control of every individual, but a full grasp of brain chemistry and design and well understood methods to change them are well beyond our current knowledge, so their behaviors and actions are, in part, out of their control and not the result of free will but of brain construction.....now what?

Container Ship Collision In Pakistan

fuzzyundies says...

Can be! It depends on the contents of the container and how air-tight its construction and materials are. Generally materials packed for transport are supposed to be strapped or otherwise held in place so that they don't shift and upset the transport vehicle (see the 747 that crashed in the Middle East when its cargo shifted...). But that's just the stuff that was meant to be in the container. Every ship has to contend with the risk of water ingress. Un-contained water in a vessel forms a "free surface" and the so-called free surface effect applies. That's where that material can and will move based on gravity, often making a bad situation much much worse. Imagine water in a tank (itself a free surface) vs. water sloshing around the cabin of a plane. This is what usually causes ships to capsize: water gets in and isn't contained, so it can move tremendous amounts of mass anywhere it wants to go -- usually in the direction it's already going. Calculations of ship stability for things like cargo loading and ballast assume minimal free surface in the ship, because you have to. That's how ships stay upright and afloat.

How does this apply to lost containers? Depending on how watertight the container is and how well strapped in the contents are, some amount of water may get in and form a free surface. This free surface will move around until the container finds its equilibrium which may or may not be watertight and less dense than the water around it, which defines whether it floats or sinks and what direction it faces when it does.

A container with a lot of weight on one side but otherwise watertight will stand upright and perhaps still sink (like the one at the end of this video). A container with well-distributed weight would tend to end up flat. Whether it sinks or not depends on whether it's watertight and what its density is -- the weight of the container displacing ocean vs. the weight of the ocean it displaces.

Sadly, a significant number of containers end up at the worst possible density/displacement where they float just at or near the surface and lay in wait to devastate passing ships, regardless of the orientation of the container itself.



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