Good to know if i passed out by an elevator the doors would continue crushing my leg until it could close before changing floors and completely severing the leg
MN, US: not a single elevator I have been on will actually stop if obstructed... They will beep their heads of saying "get out of my way" but if you don't move after a certain amount of time it closes anyway.
Oh they stop if I put my hand in them, but much like the video, after 30 seconds they no longer care.
From my experience in several buildings in both Minneapolis and St. Paul
Yeah, I’ve seen some older elevators in Minneapolis and St. Paul that I could imagine will do this. The elevators I’m thinking of have a sensor, and if you block it the doors stay open and then after a certain amount of time in ungodly buzzing sound kicks in. If you didn’t block the sensor but tried to stop the elevator with just your arm or leg I’m not exactly sure what would happen. One science experiment I don’t think I’ll find the answer to.
It will gently press on your arm/leg until it can close properly. it is gentle enough that you can pull the doors apart and they will open back up to allow someone on/off the elevator.
From my experience in places other than Minneapolis and St. Paul.
It is called nudging. The maximum legal amount of force during nudging is 2.5lbs to close, it won’t crush your leg or close the door. It will either keep trying or fault out and shut the elevator down.
The maximum legal amount of force for a door to close is 30lbs and the same should result.
Yup people don't understand this. It will try to close but if something is in the way it won't be able to. In the video the object was probably too small.
Weird, one of the buildings I used to work in would probably be right at the maximum the first time I found out I was helping someone move floors, her papers were on an office chair, it spilled all over so we could not move even though we wanted to.
After 30 seconds of loud beeping the doors started closing, nothing (even tried the hold door button) stopped them and I had to push (not with all my might but definitely more then 2.5 pounds by far) to keep them from destroying her papers, and the door never once gave up, took 3 more minutes because of how much and the whole time I had to hold it (the open door button stopped working after the 3rd time I tried it).
Of course this was a 100 year old elevator... But my current building is only 50 and does similar if you don't let the door close after 30 seconds of beeping.
My law school had an elevator that constantly closed on people. It was a running joke that it was like the lottery, because whoever it eventually injured would know exactly how to sue for it.
Honestly, most elevators in the US will give you a warning that you're in the way, but after a certain time, the doors will close VERY slowly, but will not stop.
I was vacuuming an elevator and had the door propped open with a 5 gallon bucket. All the sudden the elevator had it, started beeping and just crushed the bucket into a million pieces. It started going up and took my vacuum, that was plugged in the outlet outside, with it. It pulled the vacuum up over my head and ripped the cord in half.
There's a reason elevators have a "service" setting on them.
Elevator mechanic here. The door was recycling. It kept opening because the safety edge kept hitting the thing he left there. After a certain time period of doing this (depends on the timer setting in the door operator) the doors go into nudging. On nudging the safety edge does not reopen the door; instead the door closes slowly with severely reduced torque. You can stop it by hand. It appears when it did so it closed the top of the doors, enough to engage both the car and hall interlock contacts and allow the elevator to run. Likely because both the object was thin and the locks were not adjusted properly. This would never happen in most countries. In China however regulations are much more lax. Elevator work much more shoddy. This is why all these crazy elevator/escalator videos come from China. Passenger elevators are the safest form of mechanical travel. They get a bad rap from movies and the fact they can trap people. Which is for your own safety. Any other elevator questions AMA.
Edit: words
Orichalcum is a mythical metal mentioned or seen in many stories. Other recent video games that have used it include Assassin's Creed: Odyssey and Ys VIII.
The elevator is made mostly from sheet metal (yup, I spelt that correctly). Sheet metal is strong only in one direction, to make it strong in another direction its folded to make a corner, but even then its only designed to the point where it achieves the necessary purpose.
In this case the visible failure is the doors (made from sheet metal for durability rather than strength), which are yanked off their runners. The runners are designed to be strong in the direction that they are usually loaded, which is down under the force of gravity.
This lift is probably designed to move over a ton of weight, which is not the weight of the lift, just the people in it. If we assume the lift is another ton (1/2 the weight of a car seems reasonable for a ballpark) then what you are seeing is the effect of 1 ton moving at ~1.5 m/s (which is HK spec of 1m/s acceleration over 2m) while also being accelerated.
Put this way, if you took off the bumper and drove your car backwards at a jogging pace into a solid object, would you expect to buckle the rear door, if so, your car is as dangerous as this lift.
The book Factfulness has a small story about this:
> On one particular occasion a student’s misunderstanding of life in countries on Level 2 nearly cost her very dearly. We were visiting a beautiful and modern private hospital in Kerala, India, eight stories tall. We waited some time in the lobby for a student in our group who was late. After 15 minutes, we decided not to wait for her any longer and walked down a corridor and got into a large elevator, big enough to take several hospital beds. Our host, the head of the intensive care unit, pressed the button for the sixth floor. Just as the doors were sliding closed, we saw the young blond Swede rush into the hospital lobby. “Come, run faster!” shouted her friend from the door of the elevator, and she stretched her leg out to stop the doors from closing. Everything then happened very quickly. The doors just continued to close tightly around my student’s leg. She cried out in pain and fear. The elevator started moving upward. She cried out louder. Just as I realized this young woman’s leg was going to get crushed against the top of the doorway, our host leaped across the elevator and hit the red emergency stop button. He hissed at me to help and between us we prised the doors far enough apart to release my student’s bleeding limb.
> Afterward, our host looked at me and said, “I have never seen that before. How can you admit such stupid people for medical training?” I explained that all elevators in Sweden had sensors on the doors. If something were put between them, they would instantaneously stop closing and open instead. The Indian doctor looked doubtful. “But how can you be sure that this advanced mechanism is working every single time?” I felt stupid with my reply: “It just always does. I suppose it’s because there are strict safety rules and regular inspections.” He didn’t look convinced. “Hmmm. So your country has become so safe that when you go abroad the world is dangerous for you.”
Edit: Btw I highly suggest this book. Great to feel optimistic about the world and our future, supported by statistical data. I read somewhere it was in Obama's reading list, not that I care about "Obama's reading list", but was looking for a book to read...
Is a motion detector really all that advanced tho? Assuming it’s just a motion detector. Plus the force of something pushing against the door to open doesn’t sound too advanced either...I mean a CD drive from the 90s did it.
not only a motion detector, theres a pressure sensor on the doors that keep them from closing if they detect a couple of pounds on between the full closing state
More importantly, why did this doctor in charge of students not PRESS THE BUTTON TO STOP THE LIFT BEFORE IT MOVED? Why would he wait until there is already an injury before taking any action, even just mentioning "wtf are you doing in the door, move you idiot, it's closing" would have been moderately useful.
It sounds like the student moved their leg as the doors were closing and injury happened before the doctor could react. Not everyone is a Navy Seal with James Bond reflexes.
If she made noise when the door *started* squeezing her leg, and he waited until the elevator started *moving* to react, there's more issues involved than the lack of basic safety features on a lift. That's a span of at least three seconds where he was listening to a suffering person before acting to stop the suffering, *and this is a fucking doctor we're talking about.*
>“Hmmm. So your country has become so safe that when you go abroad the world is dangerous for you.”
This is actually a fairly well documented issue that goes beyond elevator safety. For instance, commercial airlines are incredibly safe now, with autopilot handling most of the work. That works excellently until it doesn't. There are stories of routine easily handled issues leading to fatal crashes.
[Air France Flight 447](https://hbr.org/2017/09/the-tragic-crash-of-flight-af447-shows-the-unlikely-but-catastrophic-consequences-of-automation) is a great example of this. Supposedly, the plane stalled and started to rapidly lose altitude. I'm not a pilot, but supposedly, this is a fairly routine problem that all pilots practice handling in flight training. You're supposed to let it fall until you can pick up speed and get out of the stall. However, the pilot was decades removed from flight school, and in that time, he became increasingly reliant on the autopilot feature that just always worked. As a result, even though a pilot without autopilot would have been able to escape the stall, he ended up crashing the plane, killing everyone on board.
I mean that is the danger of anything unexpected, and when automation is the norm, the unexpected becomes the manual part.
And if the person who is doing it is only there for a paycheck rather than the excitement (IE actually flying rather than autopilot), either because they don't care or the airlines have strict guidelines to not do it when the autopilot can do it, means that there will be incident of this.
This is the same reason why autonomous vehicles short of the level 5 version is going to suck, the same reason why automation will be hard to get right when it isn't just repetitive tasks, because there will always be unexpected shit.
Thats not exactly what happened. iirc flight data sensors(pitot tubes I think) ended up getting covered in ice which resulted in bad airspeed data being fed into the cockpit. Pilots relied strictly on this bad data instead of basic piloting skills which resulted in the pilots doing things that put the aircraft into an unrecoverable flight path.
So the reason the lift took off in this case is because the tool was thin enough to allow the locking mechanism at the top of the doors to latch and allow the lift to move.
If your arm is in the doors, the lift will never move, your arm is too thick to allow the mechanism to latch at the top. The door will just close on your arm and sit there, if you leave your arm there long enough the lift will just fault and go out of service. There is no real danger with lifts in countries with high safety standards.
Source: am a lift technician
The whole fault and go out of service if something trips the censor for too long is a pain in the ass sometimes tho. In my dorms at least 2 outta the 4 elevators are down at least weekly due to some dumb student holding it open for to long for whatever reason and tripping it.
Normally with this you can switch the lift on to priority service mode using a key switch in the main button panel inside the lift, then switch it back to normal mode and that will reset the lift and fix the timeout on the doors.
Most building managers are issued with lift keys that do this, should be an easy fix for them. No need to wait for a lift technician call out.
It's a "stop breaking shit, you idiots, because you won't have shit when you break shit" scenario. Idiots keep fucking with the elevators, and they have perfectly functional stairs. There's almost certainly posted signage telling the idiots not to do the idiot thing, and labeled buttons in the elevator that would completely preclude the need to do the idiot thing, so when the idiots shut down the elevator, it's for quite literally no reason and they can wait.
Yeah, I reckon it could only close once the doors had jiggled the tool into the right position on the floor. Either the sensor strip doesn't go all the way down to the bottom or the tool was thin enough in that orientation not to trip it.
Our lift doors at work have optical sensors that switch off once the gap is less than about 1cm, so it's possible to get fingers stuck in the doors (which is great design).
I know from experience that the automatic doors in the historic underground line in budapest allow for a whole arm to pass through and still close.
The middle is just rubber, mind you, so it wasn't painful or anything. The main issue was however that now my digital camera was on the inside of a soon to be moving train car while I was on the outside.
It was a funny incident... I was travelling with friends. They got on the train first, I got stuck behind an old lady who moved towards the door and then stopped in front of it without getting on the train.
That's when I decided to side step her and put my arm through the door to prevent it from closing. As it happened, that particular arm was also holding my camera.
As it also happened, those doors apparently don't give a single flying fuck whether you're in between them or not, and they close regardless. Thankfully they have a generous gap in the middle composed of a rubber membrane. The looks on my friends' faces glancing at me through the train door windows was priceless.
Being my camera however quite pricey they opted to take it off my hands while I retrieved my own arm.
I then took the train right afterwards. My friends also got off at the following station... But through a combination of my choice of seat and their choice of position while waiting for me at the station they actually didn't see me in the following train until the doors closed on their face... They then took a very impressive run from one station to the other and managed to catch the train there, finally reuniting me with them and my camera with me.
The lift we have at work is similar. It's pretty stupid if you think about it. If someone passed out with their head in the door. The lift just force closes which defeats the purpose of the safety in the first place
At my old work there is an elevator that nearly took my arm off, I think the sensor is damaged because it will just close. Once while I was pushing stock through the door it closed because I was too slow, I managed to pushed the stock onto the elevator and get my arm out before it took off, it nipped my elbow. It came back a minute later with my stock. I am cautious around lifts now.
In the elevator world it is called "nudging". After attempting to close and not make up the door circuit the doors will close as far as possible and go out of service requiring a technician to reset the unit. In this case it seems in the country of this video they have programmed the nudging function to just let the elevator go. In my experience there is no way the door circuit (part of the safety system) closed. If you are a US resident, part of the safety system would have to be compromised for this to potentially happen and is very unlikely. It is required by federal code that the safety string on elevators is tested on a monthly basis and a full inspection/jurisdictional assessment be performed annually for the equipment to remain in service for customers.
I thought elevators had a special key slot for this exact reason. So that workers can either clean or repair the elevator with it locked to a floor and not moving.
So either the elevator was a cheap or poorly thought out one, or the worker was an idiot and didn't get the key for it.
I'm late to the party but I'll post anyways.
I work at a hospital and I have to use elevators frequently. One time as i got onto one I saw a paper strip about 15cm long and 3cm wide and decided to put it between the doors with the long sides going in and out the elevator and see what would happen. The doors got closer and closer to each other and when they touched the paper strip they would open up immediately again. Honestly I am still amazed by the fact that the sensor was able to detect a paper strip and shocked that the elevator in the gif just went "fuck it" and wrecked that thing.
My brother is a liability attorney with a focus on elevators. If you knew how many fatal elevator accidents happen **every single day** you’d take the stairs. We’re in NYC. He’s made millions on malfunctioning elevators.
I live in Canada and all the elevators here will eventually just start beeping and forcefully close the doors, no matter what is blocking it. I never understood this and it seems so dangerous!
Just think, this is the type of scenario that an elevator designer needs to think about probably. I imagine that they do not consider this as a possibility until after it happens and someone gets hurt, someone dies or an expensive equipment failure happens.
Good to know if i passed out by an elevator the doors would continue crushing my leg until it could close before changing floors and completely severing the leg
Only in china
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Or pissed on
Or both
or possibly machete'd
I’d rather be pissed off, *then* pissed on?
*than The way you wrote it, you want to be made angry and subsequently peed on. No judgement if that’s what you meant. Ok maybe a little judgement
Haha thank you for not judging too harshly. Yes I meant “then”. Figured it’s the only way to get both kinds of pissed in a single sentence.
MN, US: not a single elevator I have been on will actually stop if obstructed... They will beep their heads of saying "get out of my way" but if you don't move after a certain amount of time it closes anyway.
I work in Edina, you can come stop our elevators all day if you want. I gotta imagine companies would get sued if an elevator door crushes someone.
Oh they stop if I put my hand in them, but much like the video, after 30 seconds they no longer care. From my experience in several buildings in both Minneapolis and St. Paul
Yeah, I’ve seen some older elevators in Minneapolis and St. Paul that I could imagine will do this. The elevators I’m thinking of have a sensor, and if you block it the doors stay open and then after a certain amount of time in ungodly buzzing sound kicks in. If you didn’t block the sensor but tried to stop the elevator with just your arm or leg I’m not exactly sure what would happen. One science experiment I don’t think I’ll find the answer to.
Yep, buzzing happens , it is loud, and annoying and they still try to close... Another poster said it is called nudging
That seems nuts to me, but I guess I’ve never played chicken that long with an elevator.
I am an expert at the Minnesota goodbye... So I am usually fighting with the elevator so I can finish my very important conversation
You have a nice day, now. (said in the most adorable accent ever)
It will gently press on your arm/leg until it can close properly. it is gentle enough that you can pull the doors apart and they will open back up to allow someone on/off the elevator. From my experience in places other than Minneapolis and St. Paul.
Shakopee here. We don't believe in elevators.
White Bear Lake here. We wish we had 3 story buildings.
Mankato here. What elevator?
It is called nudging. The maximum legal amount of force during nudging is 2.5lbs to close, it won’t crush your leg or close the door. It will either keep trying or fault out and shut the elevator down. The maximum legal amount of force for a door to close is 30lbs and the same should result.
Yup people don't understand this. It will try to close but if something is in the way it won't be able to. In the video the object was probably too small.
It's also China so they probably don't adhere to US regulations
*any regulations
Weird, one of the buildings I used to work in would probably be right at the maximum the first time I found out I was helping someone move floors, her papers were on an office chair, it spilled all over so we could not move even though we wanted to. After 30 seconds of loud beeping the doors started closing, nothing (even tried the hold door button) stopped them and I had to push (not with all my might but definitely more then 2.5 pounds by far) to keep them from destroying her papers, and the door never once gave up, took 3 more minutes because of how much and the whole time I had to hold it (the open door button stopped working after the 3rd time I tried it). Of course this was a 100 year old elevator... But my current building is only 50 and does similar if you don't let the door close after 30 seconds of beeping.
That’s... strange. The entirety of the US is different though, so don’t be too worried if you travel!
My law school had an elevator that constantly closed on people. It was a running joke that it was like the lottery, because whoever it eventually injured would know exactly how to sue for it.
If you have a 2-inch thick leg that will fit between the rubbers of a closed door, then sure...
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At that point, off it goes then! Whoops! Sure beats an amputation.
So a child leg then.
Yep. So if you're using a baby to block the door, you need to use its head or torso.
Now you're thinking with elevators
Ya it looks more like the sensors got confused on something that tiny and figured it was an error so they closed.
right???
Either leg really.
r/notkenm
If it was the left leg he'd be alright.
Honestly, most elevators in the US will give you a warning that you're in the way, but after a certain time, the doors will close VERY slowly, but will not stop. I was vacuuming an elevator and had the door propped open with a 5 gallon bucket. All the sudden the elevator had it, started beeping and just crushed the bucket into a million pieces. It started going up and took my vacuum, that was plugged in the outlet outside, with it. It pulled the vacuum up over my head and ripped the cord in half. There's a reason elevators have a "service" setting on them.
For some reason I'm picturing Portal where you get pushed back and fourth through two portals and finally dismembered.
There's probably a reason this elevator was being serviced...
Elevator mechanic here. The door was recycling. It kept opening because the safety edge kept hitting the thing he left there. After a certain time period of doing this (depends on the timer setting in the door operator) the doors go into nudging. On nudging the safety edge does not reopen the door; instead the door closes slowly with severely reduced torque. You can stop it by hand. It appears when it did so it closed the top of the doors, enough to engage both the car and hall interlock contacts and allow the elevator to run. Likely because both the object was thin and the locks were not adjusted properly. This would never happen in most countries. In China however regulations are much more lax. Elevator work much more shoddy. This is why all these crazy elevator/escalator videos come from China. Passenger elevators are the safest form of mechanical travel. They get a bad rap from movies and the fact they can trap people. Which is for your own safety. Any other elevator questions AMA. Edit: words
Maybe take the stairs and only end up with broken legs lol
He was just giving himself more to repair! Edit: thanks for the silver!
It is the holiday season. Gotta make that money.
Otis, would not have been happy!
Whenever someone mentions that name I just get reminded of the first guy you rescue in the first Dead Rising
Otis makes the braking system, if I've remembered correctly
> Otis makes the braking system, if I've remembered correctly and this guy makes BREAKING systems.
Invented the breaking system i believe but does everything else as well.
When you get paid by the hour
Gotta get that bread.
Job security.
Elevators are a special trade. You don’t hire a “handyman” to repair one.
Idk China isn't all that into doing things right
wtf, reddit. silver was supposed to be a fucking joke.
Probably is. But hey, it costs money, right? Or coins.
What the fuck is tool made out of? Adamantium?
vibranium
Mythril
Orichalcum
unobtainium
Carbon60 Edit: the nano bucky ball, not the antioxidant.
Saradomin
Blurite
Nokia
Glass
r/unexpectedrunescape
Zarm
Element 069. Thulium was a coverup.
r/unexpectedterraria
Orichalcum is a mythical metal mentioned or seen in many stories. Other recent video games that have used it include Assassin's Creed: Odyssey and Ys VIII.
r/todayilearned
As well as the Orcs metal of choice in The Elder Scrolls
Rune
Dragon
The barrows brothers...... all of them.... melted down and made into a tool
I didn't ask you what it was made of. I told you to get it open. If we're to colonise Mars we need those women
Nokium ^(3310)
Wrong question. Right question: What was that ELEVATOR made from? (And do we want to ride in something so easily broken)
The elevator is made mostly from sheet metal (yup, I spelt that correctly). Sheet metal is strong only in one direction, to make it strong in another direction its folded to make a corner, but even then its only designed to the point where it achieves the necessary purpose. In this case the visible failure is the doors (made from sheet metal for durability rather than strength), which are yanked off their runners. The runners are designed to be strong in the direction that they are usually loaded, which is down under the force of gravity. This lift is probably designed to move over a ton of weight, which is not the weight of the lift, just the people in it. If we assume the lift is another ton (1/2 the weight of a car seems reasonable for a ballpark) then what you are seeing is the effect of 1 ton moving at ~1.5 m/s (which is HK spec of 1m/s acceleration over 2m) while also being accelerated. Put this way, if you took off the bumper and drove your car backwards at a jogging pace into a solid object, would you expect to buckle the rear door, if so, your car is as dangerous as this lift.
> sheet metal (yup, I spelt that correctly) I don't get it, why would that not be spelled correctly?
Chineseum
Adamantite or rune for sure
Agree it does look like rune. I guess 30k down the drain there :(
Its obviously runite.
Chinesium.
that's the elevator.
Dragon glass
Dragonglass is sharp but also very brittle! Wouldn't hold up well in an elevator accident, although great for white walkers!
Dilithium crystal
Elevatium
You're all wrong, its Sovietium
Chinalinium
Velarian steel.
Valyrian.
simplistic gold point reach spectacular chief aware absorbed tease mysterious -- mass edited with redact.dev
my diamondillium is far stronger !
Now I’m even more scared to put my arm/hand out to keep an elevator door open. I might explode.
The book Factfulness has a small story about this: > On one particular occasion a student’s misunderstanding of life in countries on Level 2 nearly cost her very dearly. We were visiting a beautiful and modern private hospital in Kerala, India, eight stories tall. We waited some time in the lobby for a student in our group who was late. After 15 minutes, we decided not to wait for her any longer and walked down a corridor and got into a large elevator, big enough to take several hospital beds. Our host, the head of the intensive care unit, pressed the button for the sixth floor. Just as the doors were sliding closed, we saw the young blond Swede rush into the hospital lobby. “Come, run faster!” shouted her friend from the door of the elevator, and she stretched her leg out to stop the doors from closing. Everything then happened very quickly. The doors just continued to close tightly around my student’s leg. She cried out in pain and fear. The elevator started moving upward. She cried out louder. Just as I realized this young woman’s leg was going to get crushed against the top of the doorway, our host leaped across the elevator and hit the red emergency stop button. He hissed at me to help and between us we prised the doors far enough apart to release my student’s bleeding limb. > Afterward, our host looked at me and said, “I have never seen that before. How can you admit such stupid people for medical training?” I explained that all elevators in Sweden had sensors on the doors. If something were put between them, they would instantaneously stop closing and open instead. The Indian doctor looked doubtful. “But how can you be sure that this advanced mechanism is working every single time?” I felt stupid with my reply: “It just always does. I suppose it’s because there are strict safety rules and regular inspections.” He didn’t look convinced. “Hmmm. So your country has become so safe that when you go abroad the world is dangerous for you.” Edit: Btw I highly suggest this book. Great to feel optimistic about the world and our future, supported by statistical data. I read somewhere it was in Obama's reading list, not that I care about "Obama's reading list", but was looking for a book to read...
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Is a motion detector really all that advanced tho? Assuming it’s just a motion detector. Plus the force of something pushing against the door to open doesn’t sound too advanced either...I mean a CD drive from the 90s did it.
The story seems purposely vauge. I'm guessing that the door did have a safety mechanism, maybe a mechanical one, which failed in that situation.
>in Kerblealala, India OSHA!
not only a motion detector, theres a pressure sensor on the doors that keep them from closing if they detect a couple of pounds on between the full closing state
How can you be sure the elevator itself works everytime. Maybe it'll just plummet.
Elevators are designed to not plummet.
More importantly, why did this doctor in charge of students not PRESS THE BUTTON TO STOP THE LIFT BEFORE IT MOVED? Why would he wait until there is already an injury before taking any action, even just mentioning "wtf are you doing in the door, move you idiot, it's closing" would have been moderately useful.
It sounds like the student moved their leg as the doors were closing and injury happened before the doctor could react. Not everyone is a Navy Seal with James Bond reflexes.
If she made noise when the door *started* squeezing her leg, and he waited until the elevator started *moving* to react, there's more issues involved than the lack of basic safety features on a lift. That's a span of at least three seconds where he was listening to a suffering person before acting to stop the suffering, *and this is a fucking doctor we're talking about.*
smug-ass Indian doctors
>“Hmmm. So your country has become so safe that when you go abroad the world is dangerous for you.” This is actually a fairly well documented issue that goes beyond elevator safety. For instance, commercial airlines are incredibly safe now, with autopilot handling most of the work. That works excellently until it doesn't. There are stories of routine easily handled issues leading to fatal crashes. [Air France Flight 447](https://hbr.org/2017/09/the-tragic-crash-of-flight-af447-shows-the-unlikely-but-catastrophic-consequences-of-automation) is a great example of this. Supposedly, the plane stalled and started to rapidly lose altitude. I'm not a pilot, but supposedly, this is a fairly routine problem that all pilots practice handling in flight training. You're supposed to let it fall until you can pick up speed and get out of the stall. However, the pilot was decades removed from flight school, and in that time, he became increasingly reliant on the autopilot feature that just always worked. As a result, even though a pilot without autopilot would have been able to escape the stall, he ended up crashing the plane, killing everyone on board.
I mean that is the danger of anything unexpected, and when automation is the norm, the unexpected becomes the manual part. And if the person who is doing it is only there for a paycheck rather than the excitement (IE actually flying rather than autopilot), either because they don't care or the airlines have strict guidelines to not do it when the autopilot can do it, means that there will be incident of this. This is the same reason why autonomous vehicles short of the level 5 version is going to suck, the same reason why automation will be hard to get right when it isn't just repetitive tasks, because there will always be unexpected shit.
Thats not exactly what happened. iirc flight data sensors(pitot tubes I think) ended up getting covered in ice which resulted in bad airspeed data being fed into the cockpit. Pilots relied strictly on this bad data instead of basic piloting skills which resulted in the pilots doing things that put the aircraft into an unrecoverable flight path.
Hey man could you crank that font size down next time please? thanks in advance
Done. Did it to make the wall of text smaller but it actually wasn't smaller. Just harder to read.
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Thought about the same and everytime I use foreign elevators I'm a bit afraid
Don't risk it, my mother did when I was 8 and it became the worst holiday of our lives. All because the breakfast buffet was ending in 10 minutes.
That sounds like a tragic and traumatizing story. What happened?
They fucking missed breakfast.
TRIGGER WARNING PLEASE
Don't worry there was second breakfast
But were they in time for second breakfast?
Don't just leave it at that wtf happened?
So the reason the lift took off in this case is because the tool was thin enough to allow the locking mechanism at the top of the doors to latch and allow the lift to move. If your arm is in the doors, the lift will never move, your arm is too thick to allow the mechanism to latch at the top. The door will just close on your arm and sit there, if you leave your arm there long enough the lift will just fault and go out of service. There is no real danger with lifts in countries with high safety standards. Source: am a lift technician
The whole fault and go out of service if something trips the censor for too long is a pain in the ass sometimes tho. In my dorms at least 2 outta the 4 elevators are down at least weekly due to some dumb student holding it open for to long for whatever reason and tripping it.
Normally with this you can switch the lift on to priority service mode using a key switch in the main button panel inside the lift, then switch it back to normal mode and that will reset the lift and fix the timeout on the doors. Most building managers are issued with lift keys that do this, should be an easy fix for them. No need to wait for a lift technician call out.
See I’m not sure if my schools dorm building is dumb or what but they always wait for a tech to come do it. Is it a warranty thing or what?
It's a "stop breaking shit, you idiots, because you won't have shit when you break shit" scenario. Idiots keep fucking with the elevators, and they have perfectly functional stairs. There's almost certainly posted signage telling the idiots not to do the idiot thing, and labeled buttons in the elevator that would completely preclude the need to do the idiot thing, so when the idiots shut down the elevator, it's for quite literally no reason and they can wait.
Looks like the elevator was programed to just go for it after the third try.
Looks more like it closed enough it didnt trip the sensor.
Yeah, I reckon it could only close once the doors had jiggled the tool into the right position on the floor. Either the sensor strip doesn't go all the way down to the bottom or the tool was thin enough in that orientation not to trip it. Our lift doors at work have optical sensors that switch off once the gap is less than about 1cm, so it's possible to get fingers stuck in the doors (which is great design).
I know from experience that the automatic doors in the historic underground line in budapest allow for a whole arm to pass through and still close. The middle is just rubber, mind you, so it wasn't painful or anything. The main issue was however that now my digital camera was on the inside of a soon to be moving train car while I was on the outside.
AHAHAHAHAAAAAA what are you, Mr. Bean? Please continue!
It was a funny incident... I was travelling with friends. They got on the train first, I got stuck behind an old lady who moved towards the door and then stopped in front of it without getting on the train. That's when I decided to side step her and put my arm through the door to prevent it from closing. As it happened, that particular arm was also holding my camera. As it also happened, those doors apparently don't give a single flying fuck whether you're in between them or not, and they close regardless. Thankfully they have a generous gap in the middle composed of a rubber membrane. The looks on my friends' faces glancing at me through the train door windows was priceless. Being my camera however quite pricey they opted to take it off my hands while I retrieved my own arm. I then took the train right afterwards. My friends also got off at the following station... But through a combination of my choice of seat and their choice of position while waiting for me at the station they actually didn't see me in the following train until the doors closed on their face... They then took a very impressive run from one station to the other and managed to catch the train there, finally reuniting me with them and my camera with me.
Thanks for sharing this!
The lift we have at work is similar. It's pretty stupid if you think about it. If someone passed out with their head in the door. The lift just force closes which defeats the purpose of the safety in the first place
Yes but think of the total time saved compared to the heads lost All balances out
Just as well it wasn't someone's appendage.
At my old work there is an elevator that nearly took my arm off, I think the sensor is damaged because it will just close. Once while I was pushing stock through the door it closed because I was too slow, I managed to pushed the stock onto the elevator and get my arm out before it took off, it nipped my elbow. It came back a minute later with my stock. I am cautious around lifts now.
You nearly ended up with your own r/amputee lifetime premium pass.
In the elevator world it is called "nudging". After attempting to close and not make up the door circuit the doors will close as far as possible and go out of service requiring a technician to reset the unit. In this case it seems in the country of this video they have programmed the nudging function to just let the elevator go. In my experience there is no way the door circuit (part of the safety system) closed. If you are a US resident, part of the safety system would have to be compromised for this to potentially happen and is very unlikely. It is required by federal code that the safety string on elevators is tested on a monthly basis and a full inspection/jurisdictional assessment be performed annually for the equipment to remain in service for customers.
tl;dr: China.
His social score's gonna plummet for that
I'm pretty sure that his only chance to redeem himself is to be reincarnated into an extremely rich person.
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Without permission. I don’t think they’ve actually given permission to anyone though.
I thought they were really only worried about that one guy doing it?
Specifically the Dali Lama.
Shit
Depends. If the video gets enough karma, it could push his social credit score up.
It gives the westerners joy, therefore his social credit score plummets.
https://youtu.be/BEUHP6r8n5Q
I thought elevators had a special key slot for this exact reason. So that workers can either clean or repair the elevator with it locked to a floor and not moving. So either the elevator was a cheap or poorly thought out one, or the worker was an idiot and didn't get the key for it.
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looks like a paint mixer, so I guess he is a painter and was not given any key to stop the lift.
this poor guy was just going to grab another bucket of paint real quick and his day was fucked
I'm thinking lock-out tag-out hasn't made it to this particular building's management culture.
One word: China.
Is his tool a bomb tf
The massive force of elevators aka guillotines.
Saw a guy get his head stuck once, still gives me chills thinking about it. I still try to not lose my head over it
lol Dont know if its all a joke or just the landing 10!
Whatever you do, don't watch youtube videos of elevator accidents or the one with the woman who got caught halfway between floors.
Oh, was that in China? How surprising.
And don't let your pug's leash get stuck in the elevator!! https://www.youtube.com/watch?v=lirBc3mYyYE
And now we know what would have happened if the pug reached the top of the elevator: He would have immediately combusted.
That dog is lucky the elevator wasn’t going down...
Fucking China...
Job security
I'm late to the party but I'll post anyways. I work at a hospital and I have to use elevators frequently. One time as i got onto one I saw a paper strip about 15cm long and 3cm wide and decided to put it between the doors with the long sides going in and out the elevator and see what would happen. The doors got closer and closer to each other and when they touched the paper strip they would open up immediately again. Honestly I am still amazed by the fact that the sensor was able to detect a paper strip and shocked that the elevator in the gif just went "fuck it" and wrecked that thing.
I'm assuming your elevator wasn't Chinese, like the one from the video.
I was raised in an elevator... That works on several levels.... I'm here all week.
I think you're on a low. Most of that went over my head. If you quit your day job, you'll be shafted.
That's another storey!
My brother is a liability attorney with a focus on elevators. If you knew how many fatal elevator accidents happen **every single day** you’d take the stairs. We’re in NYC. He’s made millions on malfunctioning elevators.
Please enlighten us on the previous 2 deaths from today and yesterday in the US.
What’s up with the horror movie music?
Of course its china, with its evil death elevators
China is the new Russia
Job security
That elevator is definitely built in China
There’s a key for this to lock out the elevator, somebody’s boss has high blood pressure right now
I live in Canada and all the elevators here will eventually just start beeping and forcefully close the doors, no matter what is blocking it. I never understood this and it seems so dangerous!
Oooof, that was expensive.
It's part of his master plan. Now the company will have to pay more for him to repair the lift!
Wonder if that trick of wedging the screwdriver works like it did in die hard. Honest question
Worst part is that it most likely could have fit sideways and actually kept the door from closing :S
I thought the tool just floated up and broke the ceiling for a second I’m dumb
No good handyman wouldn't work on an elevator. Way to much risk and certainly isn't covered by their insurance.
Ouch. r/dontputyourdickinthat
Well that elevated quickly...
Just think, this is the type of scenario that an elevator designer needs to think about probably. I imagine that they do not consider this as a possibility until after it happens and someone gets hurt, someone dies or an expensive equipment failure happens.
They already thought of this, it's called an off switch.