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Predators and Prey

TR273

Pirate Fox Mom
Wow... Is there much demand for rope makers these days?

Seems like a niche market. Like, survival gear is one thing. Only ropes is another.
There's a lot of demand in the fishing fleets for rope, (nets, mooring lines, etc..)

(I only know this because my cousin in a trawler fisherman.)
 

Cosmic-FS

A creature of the night
Wow... Is there much demand for rope makers these days?

Seems like a niche market. Like, survival gear is one thing. Only ropes is another.
*There's a lot of demand in the fishing fleets for rope, (nets, mooring lines, etc..)

(I only know this because my cousin in a trawler fisherman.)
It also has other "applications" ( ͡° ͜ʖ ͡°)
 

TR273

Pirate Fox Mom
It also has other "applications" ( ͡° ͜ʖ ͡°)
sprayicon.jpg

:p
 

Tazmo

Trash connoisseur
Wow... Is there much demand for rope makers these days?

Seems like a niche market. Like, survival gear is one thing. Only ropes is another.

im interested myself; was told they made different types and strengths, for various markets


It also has other "applications" ( ͡° ͜ʖ ͡°)

*wants to be tied to the bedpost raccoon noises*. @Manchesterite ;) Hehe
 

Breyo

Professional Nibbler
Thanks @BreyoGP !

it is a company that specializes in making different types of ropes.

Relaxing and playing video games sounds nice

: )

*wonders what type of pictures you like to take*. Wouldn’t mind taking more nature pictures myself *is literally surrounded by it*
Huh, that sounds specific, but probably pretty profitable. Lots of stuff she's rope nowadays, as @TR273. I bet it'd be cool to see how that kinda stuff is made :D

And nature pictures are my favorite to take, too. My family and I (usually just my mom, the dogs, and me) go on walks pretty frequently, and I always say, "Ooh, that'd make a nice picture!"
I bring my camera along sometimes, but then they feel like they have to wait for me. I tell them to go ahead and not wait up, and then I run back up to the group when I finish with the pictures lol. It's probably pretty funny to see me sprinting down the road with my camera bouncing all around my neck XD
It's nice to live around nature though! Do you live near fields, forests or mountains mostly?


If only @Simo were here :(
I know some naughty preds (and a naughty prey) that would be paddled!
 

Cosmic-FS

A creature of the night
Welp, it looks like it’s just about time for another architectural fact. This fact is the tragic tale of a lovely tea party in Kansas City that went horribly wrong due to a seeming insignificant nut.

In 1980, The Hyatt Regency hotel in Kansas City, Missouri opened for business. Designed by Edward Larrabee Barnes and the firm BNIM (Berkebile Nelson Immenschuh McDowell, Inc.), the hotel housed over 700 guests, had 42 suits, an exhibit hall, and a rooftop revolving restaurant. It also had a ballroom. Now Hyatt wanted the ballroom to have all the bells and whistles, so the architects designed a multi-story atrium spanned by elevated walkways suspended from the ceiling. Made of concrete and cladded in glass, the walkways looked beautiful. Until it collapsed.

upload_2020-2-12_17-45-4.png


So, what happened? In short: one long rod was replaced by two short ones.

If there's one principle consistent across all human nature, it's that we will always prefer the path of least resistance (i.e., "if you can get away with a half-assed job, do it"). The original plan was for two walkways that were directly on top of one another to both be supported by one very long rod that would anchor into the ceiling. Like so:

upload_2020-2-12_17-44-19.png


Simple right? One long rod hangs from the ceiling, is threaded all the way through the upper walkway, which is held with a nut, then continues down to the lower walkway where it’s attached with another nut. This assembly was a good design and would have easily held up both walkways no problem. But remember what I said about people being lazy.

The contractors saw this plan and realized that it required them to:
  • Transport a bunch of 75’+ (22 m) rods to the site
  • Thread it up to the fourth floor level (where the upper walkway was)
  • Raise the walkway up and hold it in place
  • Spend a bunch of time slowly screwing the nut up the rod for 24’ (7.3 m) until it hit the bottom of the upper walkway
  • Then attach the bottom walkway.
It was too much work for their liking, so they asked the engineers if they could change it and the engineer agreed. Their new design was to have one rod from the ceiling support the upper walkway, then come back later and attach a second rod to that upper walkway’s support beam that would go down to the lower walkway to support it. Easy right?

Here was the revised design. Please direct your attention to the nut labeled “Oh Shit!”

upload_2020-2-12_17-44-2.png


That nut is responsible for the deaths of 114 people, the injuries of 216 more, and resulted in $140 million ($334 million in today’s dollars) worth of lawsuits. It was the deadliest structural collapse in US history at the time and would not be surpassed until 20 years later with the World Trade Centers collapse on 9/11.

You see, in the original design each nut was only responsible for holding up the weight of its own walkway. That’s a good thing, because each nut is only rated to carry the weight of ONE platform. In the revised plan, the upper walkway nut was now responsible for holding up the weight of TWO platforms. They changed the rods but didn’t change the nuts or the support beam to compensate.

Cut forward to July 17, 1981. Approximately 1,600 people gathered into the atrium of the Hyatt Regency to attend a Tea Dance venue. Everyone was having a good time, sipping tea, eating tiny sandwiches, and dancing the night away. 20 people were standing on the upper walkway with an additional 40 standing on the lower. At 7:05pm, the guests on the upper level heard a loud pop then dropped several inches. This was followed by a second loud pop and the platform fell 24’ into the lower level, sending both walkways crashing to the floor. The nut that was holding everything up cleaved right through the support bar by the sheer weight of both platforms.

upload_2020-2-12_17-43-44.png


During the investigation, it came out that neither the steel company nor the engineering firm had done an evaluation of the design change. That evaluation would have shown the error and prevented the inevitable collapse.

Hindsight is 20/20. It’s only obvious now that the altered design was flawed from the beginning, but back then it was such a small detail that it seemed fine. Architects and engineers must balance a thousand different systems designed by a half dozen contractors who, in turn, each have a dozen sub-contractors, just to construct one building. Project Managers cannot allow even a seemingly small things, like a threaded rod and a nut, to go unchecked. The Hyatt collapse stands as an example of the importance of engineering safety, oversight, and ethics.
 
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Tazmo

Trash connoisseur
Huh, that sounds specific, but probably pretty profitable. Lots of stuff she's rope nowadays, as @TR273. I bet it'd be cool to see how that kinda stuff is made :D

And nature pictures are my favorite to take, too. My family and I (usually just my mom, the dogs, and me) go on walks pretty frequently, and I always say, "Ooh, that'd make a nice picture!"
I bring my camera along sometimes, but then they feel like they have to wait for me. I tell them to go ahead and not wait up, and then I run back up to the group when I finish with the pictures lol. It's probably pretty funny to see me sprinting down the road with my camera bouncing all around my neck XD
It's nice to live around nature though! Do you live near fields, forests or mountains mostly?


If only @Simo were here :(
I know some naughty preds (and a naughty prey) that would be paddled!

bet the way it’s made is hypnotizing to watch


Hehe, as long as y’all are enjoying yourselves
: )

I don’t have a dedicated camera, just my phone; but see many photographic opportunities pop up.

I live in what they consider the beginning part of the foothills here. Have a small mountain chain that runs through the county. Also lots of trees and fields around here.

all preds are naughty! ........no naughty prey here....... >.>
 

Breyo

Professional Nibbler
bet the way it’s made is hypnotizing to watch


Hehe, as long as y’all are enjoying yourselves
: )

I don’t have a dedicated camera, just my phone; but see many photographic opportunities pop up.

I live in what they consider the beginning part of the foothills here. Have a small mountain chain that runs through the county. Also lots of trees and fields around here.

all preds are naughty! ........no naughty prey here....... >.>
I bet it is, too :D

And it's ok if you don't have a dedicated camera. I got started with my phone camera a long time ago, and I liked it so much that I kept getting more and more cameras. It's definitely a lot more fun to mess around with all of the different settings that most cameras have, but most phone cameras are really nice nowadays too!
Also, you pretty much described where I live lol. I guess it'd be more of a big valley when I think about it, though. Lots of grassy fields, farmland and patches of forests, tons of trees spread all over the mountains. It's really pretty :D

Your last point is debatable
*plays back what you just said to @Manchesterite a lil' bit ago on a tape recorder*

Also, thanks for the facts @Cosmic-FS! I'll have to read it later tonight :D
 

Ravofox

back to Aussie foxying!
Welp, it looks like it’s just about time for another architectural fact. This fact is the tragic tale of a lovely tea party in Kansas City that went horribly wrong due to a seeming insignificant nut.

In 1980, The Hyatt Regency hotel in Kansas City, Missouri opened for business. Designed by Edward Larrabee Barnes and the firm BNIM (Berkebile Nelson Immenschuh McDowell, Inc.), the hotel housed over 700 guests, had 42 suits, an exhibit hall, and a rooftop revolving restaurant. It also had a ballroom. Now Hyatt wanted the ballroom to have all the bells and whistles, so the architects designed a multi-story atrium spanned by elevated walkways suspended from the ceiling. Made of concrete and cladded in glass, the walkways looked beautiful. Until it collapsed.

View attachment 81060

So, what happened? In short: one long rod was replaced by two short ones.

If there's one principle consistent across all human nature, it's that we will always prefer the path of least resistance (i.e., "if you can get away with a half-assed job, do it"). The original plan was for two walkways that were directly on top of one another to both be supported by one very long rod that would anchor into the ceiling. Like so:

View attachment 81059

Simple right? One long rod hangs from the ceiling, is threaded all the way through the upper walkway, which is held with a nut, then continues down to the lower walkway where it’s attached with another nut. This assembly was a good design and would have easily held up both walkways no problem. But remember what I said about people being lazy.

The contractors saw this plan and realized that it required them to:
  • Transport a bunch of 75’+ (22 m) rods to the site
  • Thread it up to the fourth floor level (where the upper walkway was)
  • Raise the walkway up and hold it in place
  • Spend a bunch of time slowly screwing the nut up the rod for 24’ (7.3 m) until it hit the bottom of the upper walkway
  • Then attach the bottom walkway.
It was too much work for their liking, so they asked the engineers if they could change it and the engineer agreed. Their new design was to have one rod from the ceiling support the upper walkway, then come back later and attach a second rod to that upper walkway’s support beam that would go down to the lower walkway to support it. Easy right?

Here was the revised design. Please direct your attention to the nut labeled “Oh Shit!”

View attachment 81058

That nut is responsible for the deaths of 114 people, the injuries of 216 more, and resulted in $140 million ($334 million in today’s dollars) worth of lawsuits. It was the deadliest structural collapse in US history at the time and would not be surpassed until 20 years later with the World Trade Centers collapse on 9/11.

You see, in the original design each nut was only responsible for holding up the weight of its own walkway. That’s a good thing, because each nut is only rated to carry the weight of ONE platform. In the revised plan, the upper walkway nut was now responsible for holding up the weight of TWO platforms. They changed the rods but didn’t change the nuts or the support beam to compensate.

Cut forward to July 17, 1981. Approximately 1,600 people gathered into the atrium of the Hyatt Regency to attend a Tea Dance venue. Everyone was having a good time, sipping tea, eating tiny sandwiches, and dancing the night away. 20 people were standing on the upper walkway with an additional 40 standing on the lower. At 7:05pm, the guests on the upper level heard a loud pop then dropped several inches. This was followed by a second loud pop and the platform fell 24’ into the lower level, sending both walkways crashing to the floor. The nut that was holding everything up cleaved right through the support bar by the sheer weight of both platforms.

View attachment 81057

During the investigation, it came out that neither the steel company nor the engineering firm had done an evaluation of the design change. That evaluation would have shown the error and prevented the inevitable collapse.

Hindsight is 20/20. It’s only obvious now that the altered design was flawed from the beginning, but back then it was such a small detail that it seemed fine. Architects and engineers must balance a thousand different systems designed by a half dozen contractors who, in turn, each have a dozen sub-contractors, just to construct one building. Project Managers cannot allow even a seemingly small things, like a threaded rod and a nut, to go unchecked. The Hyatt collapse stands as an example of the importance of engineering safety, oversight, and ethics.

Ah, I know that one (owing to a seconds from disaster episode). Very horrific and tragic, but had a great impact on building safety in America and worldwide.

Also, math is hard.

*pats back* tell me about it!

-1

-20

Pred win!!!!!!:p:p:p
 
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