lazide

Do you realize how deranged you sound?

I’m not saying it’s bad. I will note, however, that if it is actually accomplishing something net useful usually requires a long attention span and skepticism, which as you note the tools actively train everyone away from.

Being engaged == doing stuff, not necessarily being actually productive.

Busy does not always equal doing something useful.

Easy to pay a lot to the model vendor though eh?

Sure, and hamburgers and shakes are bad for us. Also very popular.

Having done all that (what you’re doing) - it often just ends up wasted effort, with poor quality at the end.

Why not just actually do the thing, instead?

Churches remain popular as well.

A big factor behind psychics is because it feeds a deep need to believe that someone knows and/or there is actually a plan.

Notably, it used to take effort to produce crap on the internet, now it’s nearly the default action.

Signal to noise has taken a dramatic hit.

Every port of entry I’ve been in, they have the same setup at every booth, which definitely includes the fingerprint machines. Even Texas, though I just got waved through due to the creepy gait/face recognition thing without stopping.

Yay for our AI overlords or something?

Maybe (hamfistedly) angling for a bribe to ‘expedite’?

Dublin is amazingly chill with passport/visa/immigration.

I once needed an actual stamp in my passport, and the agent literally apologized to me for taking up the space. I thought she might be messing with me, but not, entirely serious.

We must close this dinghy gap!

also, sometimes when they pop you’re till up 50% after everthing is said and done, even if you’re down 90% from the peak.

Near as I can tell, like crypto, 90% of the ‘discussion’ has been taken over by scam artists, and any folks trying to have a non-scam discussion get yelled at by everyone else.

Bayes is turning in his grave fast enough to power Manhattan.

It still has 3+ billion tons of coal reserves - no one wants to burn them though, apparently.

It did work for awhile though, eh?

Usually no one tolerates rationing until it’s already at $20 a loaf.

Also all non-flying forms of transport.

Sometimes a pimp slap is what is needed, but no one ever signs up for one voluntarily.

Notably, things like that is why they had their colonies.

Concrete is generally porous and definitely not micro-waterproof (aka lots of water vapor makes it’s way through). Including if using Portland cement.

It is generally macro-waterproof, however, unless there are large cracks.

Hardly, just someone who actually knows what is going on.

But then, you’d know that if you looked at my profile eh?

And if you actually knew what you were talking about. Care to quantify your ‘99%’ wrong comment?

Ah engineers who do not understand the fundamentals of the values they are using. I expect this will piss you off, but I expect it is important you know.

The easiest way to visualize Young’s modulus is typically using a stress/strain curve from a tensile force test, but can also be visualized by a compressive force test.

Young’s modulus is the elastic region that is ‘under’ both curves, since it’s a value for how much something can safely bend* and return to it’s original shape without permanent damage, and bending causes both compressive and tensile forces in a material.

The lowest value of the two upper limits - of course - will set the upper elastic limit!

Specifically, to a very simple approximation, the ‘inside’ of a bent beam will be limited by compressive strength, the ‘outside’ by tensile. The overall beams strength will be whatever the lowest of the two values is, as that is when the beam will fail somewhere, hence, that what you want to use in civil engineering, eh?

*at a first approximation. It is of course much more complex than that.

For a column, the limit is the lowest of the ability of the column to prevent deflection (tensile) and bear the load without ‘pancaking’ (compressive strength). Pancaking is resisted by the full cross sectional area of the column, while deflection is generally only resisted by (to a rough approximation - greatly depending on the actual geometry, as I noted in my prior comment!) half the thickness of the column, so tensile strength of the material is usually the limiting factor for most simple columns of non-trivial length, where unsupported column deflection is the dominant failure mode.

Notably, this is why concrete often uses rebar in civil engineering, as concrete has trash tensile strength on it’s own and requires massive volumes to have sufficient tensile strength to form acceptable beams or unsupported columns, or use only very limiting forms to ensure only compressive forces actually occur. Unreinforced Concrete’s Young’s modulus is trash for this reason.

Which for civil engineering is the best bet!

Also, add a good safety factor on top due to all the other materials fundamentals that they apparently don’t teach in civil engineering school?

Which hey, I get, because they’d be too overwhelming eh? And they’re generally drowned in the noise at that scale anyway.

Depending on the sub discipline, mech-e, aero-e, etc. will of course have to know these things at a finer level of detail.

Someone computing fuselage thickness, designing an engine connecting rod or turbine blade, etc. needs to know what is going on at a much finer level eh?

Those folks will also have to quantify the type of failure modes they expect (fatigue limit, tensile failure, compressive failure, wear, etc.) and design around it.

Young’s modulus isn’t fully useless in those usages, but more specific values tend to be far more useful, as Young’s modulus is fundamentally the lowest value of a mix of material properties.

Counterpoint - the Quechua who did have issues with it likely died out long before any of us would be aware of it.

It depends on the geometric stability of the column shape, which is why I said what I said. The reality is that compressive stress limits are much lower in steel than tensile, as you’re noting.

They are only the same in an abstract theoretical sense, not an actual one.

And bucking within the column (and/or the resistance too it) is primarily resisted by tensile strength.

If you're poor, you're crazy.

If you're rich, well, you're just eccentric.

Because you can pay your way, mainly.

Interestingly, the design of beams and the like (used for columns) still means tensile strength is the limiting factor, not compressive strength.

For compressive strength alone to matter, you’d essentially need a solid steel column - which is so prohibitively heavy, it would often end up collapsing under it’s own weight (in tensile failure, most likely) before it got up to a useful height.

Well, everyone knows white boys can’t jump.

I mean, they evaluated and left?

What should they have done, creeped on them as they played?