I worked in a wafer fab, and we had a couple mishaps. One operator was going to pour water into an acid etch tank, and added isopropanol instead. Her ppe saved her, but the station was a total loss. Another station had a system to load cradles of wafers into a quartz tube, heat it to 800c, iirc, and flow hydrogen gas into the tube to getter defects. On several ocaisions it exploded launching the tube used to load the cradles accross the room where it broke into counless hot shards. Another incident had a janitor cleaning a room, and as she left, pushing a wheeled bin that was full of solvent waste, I noticed she wasn't ok. We took the bin back to the solvent room and got her to the nurses station. The solvent had intoxicated her, but she recovered. All of these incidents causes operational and engineering changes to the process and procedure. Be safe, and look out.
Water would have been a mistake as well, here's the advice: "When you mix acid with water, it's extremely important to add the acid to the water rather than the other way around. This is because acid and water react in a vigorous exothermic reaction, releasing heat, sometimes boiling the liquid.9 aug 2019"
I don't have much-wet lab experience. I remember once in biochem class, another lab member had put benzene leftovers in an Ethanol container, and She put a very very tiny note. So a couple of us started using that container thinking we were dealing w ethanol, after a while we noticed we are not getting our results which was strange, the more strange is I could notice the smell in the first moments I started using it, and ignored it because I thought It was Ethanol and eventually we headed to Univ clinic for a checkup anyhow we were all fine. I am surprised I ignored the clear fact that was the strong smell of benzene since I trusted too much to my wrong initial assumption.
Benzene?! That's nasty stuff, we weren't even allowed to have it in the lab back in the UK. They slosh it around in Japanese hospitals though because it's so good for removing surgical tape.
It's so frequent that it would scare you to think that your chances of being arrested and convicted of a crime you hadn't committed are higher than getting convicted of a crime you did commit. I read a study out of Harvard if memory serves me correctly. That is the average American commits almost two felony crimes a day. I was arrested once for a misdemeanor DUI, as part of getting my license back was the installation of an interlock device in my vehicle. I was driving to my buddies shop and had to blow in the device to start it and in again within 10 minutes after it was running. It was a 25 mile drive to get to the shop. With 5 miles to go I blew for a third time, I slowed down and was making a left turn off the highway when a car came over a hill and hit my truck in the back of the cab. When I finally came around and registered what had happened I was looking in the opposite direction of where I was going. When the cop showed up he had me get out and wait against his car while he went through my truck. He came back and asked me how much I had to drink and I truthfully stated that I hadn't been drinking he said my truck smelled like alcohol. He asked me to take the field sobriety test and I said okay. I attempted to do the test. But when I stood up and attempted the first one I was so light headed that I almost passed out. He asked if I wanted an ambulance and I said I was okay but felt a bit loopy. He cuffed me and I sat in his car and watched my truck get loaded on a wrecker. While it was being wenched up i saw the rear axle was drug behind the bed of the truck. I noticed the hi lift jack was missing from where it had been bolted to the bed head and some metal straps. I went to jail and then bonded out sunday the very next day. Went to court on monday. After court I went and got my truck back and called it a day and headed home. I woke up Tues to go to work and couldn't stand up. I called my dad and he took me to the indian clinic. They did some X-rays and sent me to the Indian hospital about an hour away. Right before i left to go to the closet trauma center about another hour away they gave me morphine. When I got to the second hospital they did some more tests and I had a severe and some bleeding in the skull concussion. I found out I had lacerated liver and kidneys along with internal bleeding and had to spend the next two weeks. So when I got home it was too late to do something and I had no ability to was fromr46
@@EddieTheH I'm going on personal experience and local history. Back in the early 90's if I remember correctly there was a Tulsa police officer (along with a few other cops who were involved but the main officer was convicted in federal court. But he was kicking in peoples houses and would seize drugs without a warrant and the majority of the drugs were passed to a street gang associated with the Crips and arrest the people living there and fabric evidence, he would be told who owed money to the gang and arrest them in their house without a warrant and let the gang members in to take whatever they wanted to satisfy the debt. All told there were 400 people that were either granted a new trial and were released with time served or charges dropped some having been in prison for over 15 years and were not guilty of the crimes they were convicted on. The prosecutor knew that charges against most of the defendants were false and evidence false and prosecuted them anyway but since they had retired when the FBI started their investigation and went into private practice the FBI didn't charge the majority of them due to lack of evidence the ones who ran the shit show were jailed and lost their license to practice law but qualified immunity kept them from prison. The main officer was convicted of a couple of murders committed at the gang's request. But I've lived in multiple states and been in trouble in multiple states and once the law is looking at you they are getting you on something.
This is especially important because of how we react to traumatic events. On one hand, the body is saying "forget you brain, stomach, and other 'unimportant' things, I need to react!" But the brain is saying "hold on! This is important, I need to remember EVERYTHING, because this is deadly important!" And what happens is the brain is trying to make memories but doesn't have all of its faculties. They're important enough to imprint the experience, but at the same time the best it can do is something similar to a dream. Additionally, the brain will exaggerate certain aspects like stretching time, or making an aggressor seem larger. I'm guessing that this is a learning aid (usually) but in these cases we wind up with false memories. I'd have a terrible time testifying at a trial. 😂
I'd also do horrible testifying. I already use to many qualifiers. I suffered from imposter syndrome for much of my life only to realize that most people's confidence is unfounded. I notice my mistakes so much more than others. This includes trusting my memory. I always assumed that other people must have had great memories and understanding because they spoke and acted like they were correct. Turns out that's wrong. People in general are horrible at grading their own competence. Once I realized this, I went from imposter syndrome to elitist. I didn't like being elitist and eventually found a happy medium. Once I realized that people made lots of mistakes, it allowed me to start catching their mistakes with a "trust by verify" mentality. This turned out to be a boon for myself. Seeing how others make mistakes allowed me to even better appreciate not fully trusting my memory or reasoning. Just because something makes absolute sense right now doesn't mean it's right. I also better appreciate having a mix of people on a team. Different opinions are great. There is some kernel of truth/wisdom to be found from any opinion.
Fascinating story in many respects. We always used "boiling chips" while I was in highschole in the late 50's early 60's until teaching in the early 70's and well into the 2000's...so I'm having trouble understanding how the "bump"occurred if she did have boiling chip in the mix.
I genuinely thought you had millions of Subba to my surprise you only have 3k this channel is a hidden gem and I'm glad to be a part of it before it becomes much bigger!
4:58 also called "boiling chips" in the USA great video. i like that you spontaneously went forensic on your lab coat and realized how you saw what you expected not what truly happened.
being driven by my mother, back from university for Christmas, a girl jumped in front of the car and was hurt badly. My mother sat in the driving seat trembling while I raced back down the pavement to see if she was still alive. The first man in the crowd to see me said, "It was him, he was driving." My mother was still sitting, holding the steering wheel in the car trying to recover. The unreliability of eye witnesses can be absolute. The girl had six weeks in hospital with a broken pelvis but recovered. The police dropped it after extensive investigation. Eye witnesses notwithstanding.
Excellent work, as always. (I'd better not mention my silly mistake at the secondary school chem lab.) And, yes, this is how our brains work. Keep on, dear man! Looking forward!
The fact that the channel name is LI FE Really makes sense... You give life and feed us with premium knowledge. Happy to be a part of it... Love your way of explaining everything with ease❤
Thank a lot for these awesome videos. And also for your "simple" language, which helps me as a non native english speaker to understand your explanations very well. Please keep going on your fantastic work!
Thanks for another entertaining video, AND one that touches on a very important "trait" that all to many people seem to be unaware of. And although I am inclined to believe that this kind of "false memory formation" is most prevalent during "high stress events", false memories can "form" by "slowly morphing" as well. All it takes is that You, when "recalling" a memory, which in essence is "retelling" it to Yourself, consciously or more likely unconsciously change it ever so slightly to better "suit Your preferences or agenda. Then that will "change" Your "real memory" to become more like Your "skewed version". And You can, consciously or unconsciously ,keep playing this "game of telephone" with Yourself, which can end up with Your ""memory"" being "severely skewed" in some way to what You first "remembered", not to mention if compared to what actually happened. Simply put we are "emotional creatures", and memories are NOT in anyway ""recordings of events"" they are AT BEST recollections of our personal impressions of events... And they are malleable after the event "on top of that". Best regards.
So what do you think happened? The neck of the flask got plugged up with precipitate and built up pressure until it burst through? This doesn't make much sense if she actually had it off the heat but perhaps she misremembered that bit...
You're right! I'll do it right now. Oh, and we're nearly at 10,000 subscribers now so a new one will be out soon. If you join the community you can vote on which disaster I talk about next.
Hello Sir, I’ve watched a couple of your videos and I found out you are one of the little people who explain chemistry and make sense out of it. I have always had problems in understanding chemistry because the concepts themselves are either too simple or quickly get replaced by other “ theories “, so do you have a way to learn chemistry properly starting from gen Chem to any other? Do you have any good books I can learn chemistry from?
what was the reaction that the student was working on? this gave me a bit of a flashback as I had the exact same thing happen with acetone- no sign of boiling to INSTANT spout of liquid then vaporization. there was a flame source not far away. ive never flipped on all ventilation faster than that day. the seconds felt like minutes.
I colleague of mine made the same mistake and got some potassium hydroxide into his face. He wore his goggles and immediately washed it off so nothing serious happened
It wasn't the chemical, as such, that caused the accident, but rather the (not) boiling liquid - it could have happened with any liquid. As for danger, it would have been appropriate risk for undergraduate labs. That means there are possible hazards such as irritants, corrosive chemicals and flammable chemicals but nothing as dangerous as those found in research labs. I can't remember the actual mixture though.
Does this mean you also identified the incorrect perpetrator, as it was someone behind you who's experiment had blown up, not the person behind her that you were looking at?
We knew who she was immediately. She was the one standing, panicking, with hot, corrosive reaction mixture all over her hands. This is what gloves and lab coats are for.
@@ThreeTwentysix Gotcha, thanks for clearing that up. A great lesson in the limits of personal testimony and anecdotes generally. That is why I love science so much, not scientists they can be assholes, but the discovery and constant progress in demonstrating the current best answer to a phenomena and leaving a published trail for future generations. I feel privileged to be smart enough to understand a lot of science, mankind's greatest achievement. Life would be so dull with only the shallow understanding of the average person.
0:04 you can add infinite amounts of zeros to your subscriber list and never have the count change ie 1000 + (0*infinity) = 1000 so we are owed an infinite amount of chemistry disaster stories. You should of said when a zero is appended to the end of subscriber count Additionally there is no more than 10 billion people on earth. 10,000,000,000 a maximum of ten stories. 😢
This is a deeply fascinating and well told story about how our brains can literally fabricate memories, especially in high stress situations.
Thought I was gonna get a story about how to manage chemistry better, but it was about the mind and memory! 😮 Absolutely riveting tale!
My dude. Your channel is fantastic. Can't wait to see it grow to the size is deserves.
I worked in a wafer fab, and we had a couple mishaps.
One operator was going to pour water into an acid etch tank, and added isopropanol instead. Her ppe saved her, but the station was a total loss.
Another station had a system to load cradles of wafers into a quartz tube, heat it to 800c, iirc, and flow hydrogen gas into the tube to getter defects.
On several ocaisions it exploded launching the tube used to load the cradles accross the room where it broke into counless hot shards.
Another incident had a janitor cleaning a room, and as she left, pushing a wheeled bin that was full of solvent waste, I noticed she wasn't ok. We took the bin back to the solvent room and got her to the nurses station. The solvent had intoxicated her, but she recovered.
All of these incidents causes operational and engineering changes to the process and procedure.
Be safe, and look out.
Wow. Thanks for the stories!
Water would have been a mistake as well, here's the advice:
"When you mix acid with water, it's extremely important to add the acid to the water rather than the other way around. This is because acid and water react in a vigorous exothermic reaction, releasing heat, sometimes boiling the liquid.9 aug 2019"
I don't have much-wet lab experience. I remember once in biochem class, another lab member had put benzene leftovers in an Ethanol container, and She put a very very tiny note. So a couple of us started using that container thinking we were dealing w ethanol, after a while we noticed we are not getting our results which was strange, the more strange is I could notice the smell in the first moments I started using it, and ignored it because I thought It was Ethanol and eventually we headed to Univ clinic for a checkup anyhow we were all fine. I am surprised I ignored the clear fact that was the strong smell of benzene since I trusted too much to my wrong initial assumption.
Benzene?! That's nasty stuff, we weren't even allowed to have it in the lab back in the UK. They slosh it around in Japanese hospitals though because it's so good for removing surgical tape.
what was the checkup at student health for? thx
@@john-ic5pz it was for lung function test (I am not sure exactly)
Brilliant story. I always wonder how many wrongfully convicted people have been put away (or worse) due to the fallible human brains of eyewitnesses.
Quite a lot, sadly. Including some executions.
It's so frequent that it would scare you to think that your chances of being arrested and convicted of a crime you hadn't committed are higher than getting convicted of a crime you did commit. I read a study out of Harvard if memory serves me correctly. That is the average American commits almost two felony crimes a day. I was arrested once for a misdemeanor DUI, as part of getting my license back was the installation of an interlock device in my vehicle. I was driving to my buddies shop and had to blow in the device to start it and in again within 10 minutes after it was running. It was a 25 mile drive to get to the shop. With 5 miles to go I blew for a third time, I slowed down and was making a left turn off the highway when a car came over a hill and hit my truck in the back of the cab. When I finally came around and registered what had happened I was looking in the opposite direction of where I was going. When the cop showed up he had me get out and wait against his car while he went through my truck. He came back and asked me how much I had to drink and I truthfully stated that I hadn't been drinking he said my truck smelled like alcohol. He asked me to take the field sobriety test and I said okay. I attempted to do the test. But when I stood up and attempted the first one I was so light headed that I almost passed out. He asked if I wanted an ambulance and I said I was okay but felt a bit loopy. He cuffed me and I sat in his car and watched my truck get loaded on a wrecker. While it was being wenched up i saw the rear axle was drug behind the bed of the truck. I noticed the hi lift jack was missing from where it had been bolted to the bed head and some metal straps. I went to jail and then bonded out sunday the very next day. Went to court on monday. After court I went and got my truck back and called it a day and headed home. I woke up Tues to go to work and couldn't stand up. I called my dad and he took me to the indian clinic. They did some X-rays and sent me to the Indian hospital about an hour away. Right before i left to go to the closet trauma center about another hour away they gave me morphine. When I got to the second hospital they did some more tests and I had a severe and some bleeding in the skull concussion. I found out I had lacerated liver and kidneys along with internal bleeding and had to spend the next two weeks. So when I got home it was too late to do something and I had no ability to was fromr46
@@theEVILone0130 I'm having difficulty connecting that anecdote to wrongful convictions...
@@EddieTheH I'm going on personal experience and local history. Back in the early 90's if I remember correctly there was a Tulsa police officer (along with a few other cops who were involved but the main officer was convicted in federal court. But he was kicking in peoples houses and would seize drugs without a warrant and the majority of the drugs were passed to a street gang associated with the Crips and arrest the people living there and fabric evidence, he would be told who owed money to the gang and arrest them in their house without a warrant and let the gang members in to take whatever they wanted to satisfy the debt. All told there were 400 people that were either granted a new trial and were released with time served or charges dropped some having been in prison for over 15 years and were not guilty of the crimes they were convicted on. The prosecutor knew that charges against most of the defendants were false and evidence false and prosecuted them anyway but since they had retired when the FBI started their investigation and went into private practice the FBI didn't charge the majority of them due to lack of evidence the ones who ran the shit show were jailed and lost their license to practice law but qualified immunity kept them from prison. The main officer was convicted of a couple of murders committed at the gang's request. But I've lived in multiple states and been in trouble in multiple states and once the law is looking at you they are getting you on something.
Yeah, this is pretty much why aviation accidents investigators take eyewitnesses with a huge grain of salt.
This is especially important because of how we react to traumatic events. On one hand, the body is saying "forget you brain, stomach, and other 'unimportant' things, I need to react!" But the brain is saying "hold on! This is important, I need to remember EVERYTHING, because this is deadly important!" And what happens is the brain is trying to make memories but doesn't have all of its faculties. They're important enough to imprint the experience, but at the same time the best it can do is something similar to a dream. Additionally, the brain will exaggerate certain aspects like stretching time, or making an aggressor seem larger. I'm guessing that this is a learning aid (usually) but in these cases we wind up with false memories.
I'd have a terrible time testifying at a trial. 😂
I'd also do horrible testifying. I already use to many qualifiers. I suffered from imposter syndrome for much of my life only to realize that most people's confidence is unfounded. I notice my mistakes so much more than others. This includes trusting my memory. I always assumed that other people must have had great memories and understanding because they spoke and acted like they were correct. Turns out that's wrong. People in general are horrible at grading their own competence.
Once I realized this, I went from imposter syndrome to elitist. I didn't like being elitist and eventually found a happy medium. Once I realized that people made lots of mistakes, it allowed me to start catching their mistakes with a "trust by verify" mentality. This turned out to be a boon for myself. Seeing how others make mistakes allowed me to even better appreciate not fully trusting my memory or reasoning. Just because something makes absolute sense right now doesn't mean it's right. I also better appreciate having a mix of people on a team. Different opinions are great. There is some kernel of truth/wisdom to be found from any opinion.
Fascinating story in many respects. We always used "boiling chips" while I was in highschole in the late 50's early 60's until teaching in the early 70's and well into the 2000's...so I'm having trouble understanding how the "bump"occurred if she did have boiling chip in the mix.
I don't think she did. Classic case of student not paying proper attention.
I click like only after you tell me about the reason! Not before!
Your channel is very underrated
I genuinely thought you had millions of Subba
to my surprise you only have 3k
this channel is a hidden gem and I'm glad to be a part of it before it becomes much bigger!
4:58 also called "boiling chips" in the USA
great video. i like that you spontaneously went forensic on your lab coat and realized how you saw what you expected not what truly happened.
Brilliant story, can't wait for more Zeros so we can get more stories.
being driven by my mother, back from university for Christmas, a girl jumped in front of the car and was hurt badly. My mother sat in the driving seat trembling while I raced back down the pavement to see if she was still alive. The first man in the crowd to see me said, "It was him, he was driving." My mother was still sitting, holding the steering wheel in the car trying to recover. The unreliability of eye witnesses can be absolute. The girl had six weeks in hospital with a broken pelvis but recovered. The police dropped it after extensive investigation. Eye witnesses notwithstanding.
Excellent work, as always. (I'd better not mention my silly mistake at the secondary school chem lab.) And, yes, this is how our brains work. Keep on, dear man! Looking forward!
Great video and beautiful channel. I'm happy to have found you before you got too big. 😊.. yes I often have false memories. It's OK.
The fact that the channel name is LI FE
Really makes sense... You give life and feed us with premium knowledge. Happy to be a part of it... Love your way of explaining everything with ease❤
Just found your channel and Love it!!
Thank a lot for these awesome videos. And also for your "simple" language, which helps me as a non native english speaker to understand your explanations very well. Please keep going on your fantastic work!
Thanks for reminding. Great story telling.
Glad you enjoyed it
Thanks for another entertaining video, AND one that touches on a very important "trait" that all to many people seem to be unaware of.
And although I am inclined to believe that this kind of "false memory formation" is most prevalent during "high stress events", false memories can "form" by "slowly morphing" as well.
All it takes is that You, when "recalling" a memory, which in essence is "retelling" it to Yourself, consciously or more likely unconsciously change it ever so slightly to better "suit Your preferences or agenda. Then that will "change" Your "real memory" to become more like Your "skewed version". And You can, consciously or unconsciously ,keep playing this "game of telephone" with Yourself, which can end up with Your ""memory"" being "severely skewed" in some way to what You first "remembered", not to mention if compared to what actually happened.
Simply put we are "emotional creatures", and memories are NOT in anyway ""recordings of events"" they are AT BEST recollections of our personal impressions of events... And they are malleable after the event "on top of that".
Best regards.
Love you and your channel!
So what do you think happened? The neck of the flask got plugged up with precipitate and built up pressure until it burst through? This doesn't make much sense if she actually had it off the heat but perhaps she misremembered that bit...
I think she forgot to put boiling chips in the flask, took the condenser off and it bumped when she did that.
@@ThreeTwentysixso was it her or was it somebody behind you?
Amazing
Expected a video on chemistry, got a video on human psychology.
Hi,
Love your content! Could these stories be added to a playlist please? I'd love to hear your stories.
You're right! I'll do it right now. Oh, and we're nearly at 10,000 subscribers now so a new one will be out soon. If you join the community you can vote on which disaster I talk about next.
You are the Mr Ballen of science👍
Been saying that memory speech forever.. sketchy at best. I'm a fan.
Is it possible you saw the reflection of the accident in your student's eyewear or other glassware in the lab?
Hello Sir, I’ve watched a couple of your videos and I found out you are one of the little people who explain chemistry and make sense out of it. I have always had problems in understanding chemistry because the concepts themselves are either too simple or quickly get replaced by other “ theories “, so do you have a way to learn chemistry properly starting from gen Chem to any other? Do you have any good books I can learn chemistry from?
what was the reaction that the student was working on? this gave me a bit of a flashback as I had the exact same thing happen with acetone- no sign of boiling to INSTANT spout of liquid then vaporization. there was a flame source not far away. ive never flipped on all ventilation faster than that day. the seconds felt like minutes.
I can't remember, I'm afraid. Definitely orange though.
@@ThreeTwentysix sounds like something with small amounts of bromine. yikes.
i bookmark this vid
I colleague of mine made the same mistake and got some potassium hydroxide into his face.
He wore his goggles and immediately washed it off so nothing serious happened
What is the chemical that has caused the incident ? I hope it wasn't something dangerous
It wasn't the chemical, as such, that caused the accident, but rather the (not) boiling liquid - it could have happened with any liquid. As for danger, it would have been appropriate risk for undergraduate labs. That means there are possible hazards such as irritants, corrosive chemicals and flammable chemicals but nothing as dangerous as those found in research labs. I can't remember the actual mixture though.
I hate that our minds are so damn unreliable
The question remains--will one be forcibly removed from Disneyland if they don a Bugs Bunny costume in the park?
disaster not. but convincing about something about somtehing never happen i have couple of times for sure.
Does this mean you also identified the incorrect perpetrator, as it was someone behind you who's experiment had blown up, not the person behind her that you were looking at?
We knew who she was immediately. She was the one standing, panicking, with hot, corrosive reaction mixture all over her hands. This is what gloves and lab coats are for.
@@ThreeTwentysix Gotcha, thanks for clearing that up. A great lesson in the limits of personal testimony and anecdotes generally.
That is why I love science so much, not scientists they can be assholes, but the discovery and constant progress in demonstrating the current best answer to a phenomena and leaving a published trail for future generations.
I feel privileged to be smart enough to understand a lot of science, mankind's greatest achievement. Life would be so dull with only the shallow understanding of the average person.
Does almost making a flame thrower out of a test tube and narrowly keeping my lab partner intact count as an accident?
0:04 you can add infinite amounts of zeros to your subscriber list and never have the count change ie 1000 + (0*infinity) = 1000 so we are owed an infinite amount of chemistry disaster stories. You should of said when a zero is appended to the end of subscriber count
Additionally there is no more than 10 billion people on earth.
10,000,000,000 a maximum of ten stories. 😢
I have had chemistry disasters but my recollections were accurate as there was no panic.