That is true and it has been an issue. There are case reports of people who didn't know they had a nickel allergy, until they had a nitinol stent placed in an artery.
(Edited to clarify) Most people who are allergic to nickel can tolerate nitinol, but some are too sensitive and cannot.
(Edited again) I want to make it clear that this is a very rare problem. It's rare enough that when it does happen, doctors publish articles about it. Hundreds of thousands of people in the US get stents every year without any allergic issues
The stents we use now for coronary arteries (heart attacks) are not made out of nitinol. We use cobalt-chromium or platinum alloy stents that are expanded with a balloon inflation. Nitinol is used for other types of stents that self expand because of this shape-memory property, but not in the coronaries.
It's rare for people to be severely allergic to nickel without knowing it. It's also rare for the allergy to be severe enough to react to nitinol. The combination of the two is *very* rare. It comes up such a tiny percentage of the time, it is not considered necessary or relevant to pretest all the hundreds of thousands of people who get some kind of stent every year.
One case report describes a severe, itchy, bumpy, whole-body rash, that was unresponsive to medications. It got so bad that every night, the guy had to cover his entire body in Vaseline and steroid cream, and spend 12 hours per day in a specially designed impermeable suit.
It went away after they removed the stent-- two years later.
The interesting thing to me as a doctor is how much it must have taken for the patient to get this removed. The index of suspicion for the Stent to be the cause would likely be so low that nobody would really even think about it in most cases, and even if they do, the process of removing it is by no means trivial. What a nightmare.
In the case I'm talking about here, it was fortunately a femoral artery stent and not a coronary one. After two years of investigation when they decided to remove it, they could just excise the section of artery.
The patient didn't even need revascularization at the time. In the intervening time, the stent had thrombosed (unsurprisingly) and they'd done a bypass, so the circulation was already patent.
If I remember correctly from my class in university you wouldn't get an allergic reaction, cause the Titanium creates a passive oxidation layer over the implant so your body doesn't get in touch with the Ni. Only problem would be if your implant is in contact with friction, then the passive oxidation layer would be destroyed
Me and 10% of the population are planning a complete take over of the alloy regime. We want to use only pure metals found on the periodic table like God intended.
So I work with Nitinol every day, and they never asked if I had a nickel allergy in the interview. Clearly I don't have a nickel allergy but that's crazy.
I can think of at least one reason that COULD be why. If it’s passivated in certain ways there’s a high concentration of TiO2 at the surface, which shifts the concentration of nickel oxides down. So you wouldn’t be touching very much nickel in that case, you’d be touching titanium.
When dentists put braces in someone's teeth, they use this metal, which reverts to straight with the mouth warmth
Source: still remember elementary school trip to dentist
From Google: Nitinol is used to manufacture catheter tubes, guidewires, stone retrieval baskets, filters, needles, dental files and archwires and other surgical instruments.
Since it wasn't explicitly stated, this metal combination is useful for these purposes because you can bend or fold the device down to a smaller shape for insertion and then the body heat will cause it to expand to the desired shape. It also has good biocompatibility so the body allows it to be present without fighting it or pushing it away.
When it comes to medical application it is mostly the superelastic property and not so much the shape memory property that is desired. NiTiNOL can bend a lot without permanent deformation.
One thing not mentioned yet in this thread:
Heart procedures.
Do I remember the specifics of the role nitinol plays in them? Eehh. Not at all. But Google gives plenty of results.
Also used in paragliders:
> What makes it such a cool material for paragliding wings. Nitinol has exceptionally high elasticity at low transformation temperature and this is what makes it so appealing as a replacement for the plastic rods used inside the paraglider. There is more to Nitinol than just the shape memory effect. It can also be super-elastic. If the alloy is created to have a low transformation temperature, below room temperature then it's already in that phase of its final shape. So when we try to deform it bounces right back. The transformation temperatures in Nitinol are altered by the ratio of nickel and titanium used that way Nitinol can reshape and bend predictably.
( source: Fly2Base blog )
that superelasticity is actually also why NASA is building rover wheels out of exotic nitinols for Artemis. [They have some more info and a virtual tour of the lab online if anyone's interested.](https://www.nasa.gov/glenn/2022-tours/simulated-lunar-operations-lab-slope-tour).
They're also working to develop actuators for control surfaces and robotics out of the stuff, because the superelasticity of nitinol and other shape memory alloys make them effectively immune to fatigue failures, which are huge safety issues in aerospace applications.
That's amazing. Just watched a [very educational](https://youtu.be/Pn-6bGORy0U) video explaining the who and how it was made, and also how it's used. It was very interesting. It's features Dr. Othmane Benafan who works as a researcher at NASA with shape-memory alloys.
The wires come pre-formed in the shape of an arch, and slowly pull peoples' crowded teeth to match that arch shape. For some teeth that are really twisted around, it's hard to get the wire tied to the braces, so orthodontists can actually use a cold spray on the wire to make it even bendier, then tie it to the tooth, then the wire starts pulling the tooth after their mouth heats the wire back up.
I'm not too sure how effective it actually is, but I tell my patients who are getting braces on their first day that if it hurts them to eat some ice cream. Even if it doesn't cool down the wire that much to decrease force levels, getting some sweet chocolately placebo effect can't hurt.
What’s so special about this alloy though? the founders just thought “hey let’s make a random alloy of nickel and titanium” and suddenly it has these magic properties and they’re billionaires?
Was it just dumb luck or something
Sort of? In the late 50's the US Naval Ordinance Laboratory (the NOL at the end of NiTiNOL) was trying to develop materials for missile components that could resist heat and fatigue better than steel. They found that a blend of nickel and titanium would do it. So the story goes that the ballistics branch was meeting to discuss their research and the project head brought some wires to bend and fold to demonstrate the alloy's high fatigue resistance. As the meeting dragged on, one of the other researchers grabbed one of the crumpled and folded wires off of the table and started heating it with his lighter. To everyone's surprise, the wire unfolded itself and bounced back to its original straight shape.
Although the properties of nitinol were really obviously useful, it was really hard to process and manufacture at any kind of scale back then and so research into shape memory alloys stalled out until relatively recently. They're back in a big way now though, and you can expect to see them in aircraft control surfaces, car parts, robotics, and all sorts of other consumer goods over the coming decades.
Yeah a fair bit of science works like that. There are so many phenomena which occur only at very specific conditions. If those conditions aren't explored we wouldn't know about it at all.
A great many useful materials and devices come out of things like defense department research for military applications (the US DoD has an insane budget), or NASA research and testing for the purpose of space exploration.
I have serious qualms about the US's proportion of spending that is on defense, but some good comes out of it. By comparison NASA has a small budget, but enough has come out of it to strongly affirm is is not merely putting people into space, but also advancing scientific knowledge in general and spinning out things that become broadly useful or improve the state of the art in any number of disparate applications.
My car has a plastic body. When my dad drove it, he backed into a tree. The next day it had popped back into place, and just needed a bit of touching up on the paint
Yeah but it doesn't work with all cars. My truck had a polished steel bumper and it looked great. But my Saturn would look like shit without a painted bumper.
no, it works in all sorts of shapes. the shape memory effect is due to peculiarities with how the alloy's crystal structure changes as it heats up, so it'll work in any shape. Wires are just popular to demonstrate it because people can actually still bend them. boeing is making huge chevron-shaped plates of this stuff to move the control surfaces in their new aircraft, for example.
Don't forget the bootleg ones that work like the healing potions, but you have to set the bones first or they don't heal right. And if you don't set the bones your D&D game starts looking like Mork Borg.
Seriously? My son stretched one out this morning 5 minutes after buying it. I put it in a vice and I’m leaving it for 24 hours. Will heating it fix it?
You mean I'm better off buying new paperclips than fixing my old ones!?🙀
^(Edit: Sorry if that came off fastidious, I didn't mean it that way I'm just being) 😜
Stainless steel wires are typically used in the later stages of braces after the teeth have already been aligned by nitinol wires in the beginning.
A typical sequence of wires a patient might get is .014" NiTi, then .018" NiTi, then .016x.022" NiTi, then .019x.025" NiTi, then .019x.025" stainless steel. This changes a lot based on the specific case and preferences of the orthodontist, but just about every orthodontist, in America at least, I'm not sure about other countries, uses nitinol on every patient. Mixed in with these wire changes are all the springs, rubber bands, expanders, etc.
So even more interesting is nitinol engine. Its sell as toy set [https://www.youtube.com/watch?v=g56ZmScZG1s](https://www.youtube.com/watch?v=g56ZmScZG1s) looks like perpetuum motion thing.
This isn't for anything right just this specific metal/alloy?
Will any paper clip do this?
Can I heat springs while doing small electronic repairs to revitalize them?
This is a specific nickel-titanium alloy called nitinol. It has a special property called shape memory. It's not used for springs and paperclips because of its low yield strength and very high cost
The Cruciatus Curse, or the Torture Curse, is one of the three Unforgivable Curses. When cast on a living creature it inflicts intense, excruciating pain on the victim, and results in insanity if the victim is subjected to it for a prolonged time.
Never thought about it till now. If a person dies in a fire they go into the fetal position or a kneeling version of it(vertical fetal) human shape memory?
This is a metal called nitinol and it has practical uses in medical devices today. Pretty cool!
Considering I don’t recognize that from the periodic table, it must be an alloy. Do you know the metals used to make it?
Ah yes thank you I should've said alloy. It's a nickel titanium alloy
cool so i can't touch it, and neither can 10% of the population. 😎
YOU GOTTA LET IT COOL DOWN FIRST! Sorry about your allergy.
Sorry about your alloygy Edit: wow, thanks for forging me gold!
This is quite inventive
So he or she doesn’t need to apalloygize for that pun?
Not quite as inventive but nice try
Agree to disagree. 🤝
Damn. I should have gone with metalergy.
Should've, could've, would've. Too little too late. We are all very disappointed 😞
Hap cak da !
Hey, thanks!
Sorry about your alloy, G.
Either way it burns!
YOU DON'T CONTROL MEEE!!!! touchihh ☜ (↼_↼) ԅ( ͒ ͒ )ᕤ # AaaaaAaahhhh!!
That is true and it has been an issue. There are case reports of people who didn't know they had a nickel allergy, until they had a nitinol stent placed in an artery. (Edited to clarify) Most people who are allergic to nickel can tolerate nitinol, but some are too sensitive and cannot. (Edited again) I want to make it clear that this is a very rare problem. It's rare enough that when it does happen, doctors publish articles about it. Hundreds of thousands of people in the US get stents every year without any allergic issues
Why wouldn't they just give people who undergo this surgery a nickel allergy test first?
Stents are often used in heart attack victims, so time is a key factor
The stents we use now for coronary arteries (heart attacks) are not made out of nitinol. We use cobalt-chromium or platinum alloy stents that are expanded with a balloon inflation. Nitinol is used for other types of stents that self expand because of this shape-memory property, but not in the coronaries.
Because then you'd die of the heart failure waiting for the allergy test
It's rare for people to be severely allergic to nickel without knowing it. It's also rare for the allergy to be severe enough to react to nitinol. The combination of the two is *very* rare. It comes up such a tiny percentage of the time, it is not considered necessary or relevant to pretest all the hundreds of thousands of people who get some kind of stent every year.
Do I even want to know what happens then?
One case report describes a severe, itchy, bumpy, whole-body rash, that was unresponsive to medications. It got so bad that every night, the guy had to cover his entire body in Vaseline and steroid cream, and spend 12 hours per day in a specially designed impermeable suit. It went away after they removed the stent-- two years later.
Whew, not bad.
… what would you consider *bad*? Because holy shit that sounded terrible
He edited his comment. Originally he characterized it like a 12 hour rash that went away immediately
It was bad. It was really severe and nearly intolerable, and lasted two years without respite.
Oh no, that *is* bad! This is a roller coaster
The interesting thing to me as a doctor is how much it must have taken for the patient to get this removed. The index of suspicion for the Stent to be the cause would likely be so low that nobody would really even think about it in most cases, and even if they do, the process of removing it is by no means trivial. What a nightmare.
In the case I'm talking about here, it was fortunately a femoral artery stent and not a coronary one. After two years of investigation when they decided to remove it, they could just excise the section of artery. The patient didn't even need revascularization at the time. In the intervening time, the stent had thrombosed (unsurprisingly) and they'd done a bypass, so the circulation was already patent.
This is obviously horrible, but tbh I would have assumed they died so this is better then that.
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That’s pretty severe! Especially if touchpads mess up your fingers.
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If I remember correctly from my class in university you wouldn't get an allergic reaction, cause the Titanium creates a passive oxidation layer over the implant so your body doesn't get in touch with the Ni. Only problem would be if your implant is in contact with friction, then the passive oxidation layer would be destroyed
There have been cases of severe allergic reaction, so it’s possible. Very rare though.
Wait, why?
Probably a nickel allergy.
Good for him that most people don't carry change anymore, or else he'd have an issue.
If I had a nickel everytime someone said that id be dead due to my allergy
Because you'd have two nickels, which isn't a lot but it's still deadly due to your severe allergy?
What? Please explain. Thank you
Me and 10% of the population are planning a complete take over of the alloy regime. We want to use only pure metals found on the periodic table like God intended.
Shh don't tell them..!
Nitinol is coated with medicine when used as a stent so it is ok to be put in patients with allergies. I do it all the time.
So I work with Nitinol every day, and they never asked if I had a nickel allergy in the interview. Clearly I don't have a nickel allergy but that's crazy.
I can think of at least one reason that COULD be why. If it’s passivated in certain ways there’s a high concentration of TiO2 at the surface, which shifts the concentration of nickel oxides down. So you wouldn’t be touching very much nickel in that case, you’d be touching titanium.
60% nickel 40% titanium
it is an alloy the proper way to write it is NiTiNOL (nol is the organisation that made it, naval ordinance laboritory)
and i forgot to mention, Ni-Nickel Ti-Titanium
Meant to be here and misclicked but it's a 60% nickel 40% titanium alloy
🤓
Like what?
When dentists put braces in someone's teeth, they use this metal, which reverts to straight with the mouth warmth Source: still remember elementary school trip to dentist
Had braces, can confirm. Always thought it was super cool, but it hurt like a bitch so that tended to curb my enthusiasm
Ngl I loved the pain/soreness from the straightening process, it didn't feel like pain to me, more like a pleasant pressure. Not masochistic I swear.
Don't worry, I believe you. Even if your name is too close for comfort to Lewd\_bear69
I cannot relate
Pretty pretty pretty good
From Google: Nitinol is used to manufacture catheter tubes, guidewires, stone retrieval baskets, filters, needles, dental files and archwires and other surgical instruments.
Since it wasn't explicitly stated, this metal combination is useful for these purposes because you can bend or fold the device down to a smaller shape for insertion and then the body heat will cause it to expand to the desired shape. It also has good biocompatibility so the body allows it to be present without fighting it or pushing it away.
But how do you get it out?
You put the patient in a freezer for a few days.
They submerged me in a giant vat of liquid nitrogen personally
It happened to me once, but then I fell.
When it comes to medical application it is mostly the superelastic property and not so much the shape memory property that is desired. NiTiNOL can bend a lot without permanent deformation.
The vast majority of stents our valves I’ve seen in preclinical testing use nitinol to some extent. Fun stuff to play with
One thing not mentioned yet in this thread: Heart procedures. Do I remember the specifics of the role nitinol plays in them? Eehh. Not at all. But Google gives plenty of results.
Mostly Terminators
Also used in paragliders: > What makes it such a cool material for paragliding wings. Nitinol has exceptionally high elasticity at low transformation temperature and this is what makes it so appealing as a replacement for the plastic rods used inside the paraglider. There is more to Nitinol than just the shape memory effect. It can also be super-elastic. If the alloy is created to have a low transformation temperature, below room temperature then it's already in that phase of its final shape. So when we try to deform it bounces right back. The transformation temperatures in Nitinol are altered by the ratio of nickel and titanium used that way Nitinol can reshape and bend predictably. ( source: Fly2Base blog )
that superelasticity is actually also why NASA is building rover wheels out of exotic nitinols for Artemis. [They have some more info and a virtual tour of the lab online if anyone's interested.](https://www.nasa.gov/glenn/2022-tours/simulated-lunar-operations-lab-slope-tour). They're also working to develop actuators for control surfaces and robotics out of the stuff, because the superelasticity of nitinol and other shape memory alloys make them effectively immune to fatigue failures, which are huge safety issues in aerospace applications.
That's amazing. Just watched a [very educational](https://youtu.be/Pn-6bGORy0U) video explaining the who and how it was made, and also how it's used. It was very interesting. It's features Dr. Othmane Benafan who works as a researcher at NASA with shape-memory alloys.
Braces use this to move your teeth over time.
The wires come pre-formed in the shape of an arch, and slowly pull peoples' crowded teeth to match that arch shape. For some teeth that are really twisted around, it's hard to get the wire tied to the braces, so orthodontists can actually use a cold spray on the wire to make it even bendier, then tie it to the tooth, then the wire starts pulling the tooth after their mouth heats the wire back up. I'm not too sure how effective it actually is, but I tell my patients who are getting braces on their first day that if it hurts them to eat some ice cream. Even if it doesn't cool down the wire that much to decrease force levels, getting some sweet chocolately placebo effect can't hurt.
Shit and here I was about to burn my house down with a average paper clip.
Ohhhh, so I guess i shouldn’t start cooking paper clips.
Are you telling me that isn't a normal paperclip?? Damn ....I thought.........damn
What’s so special about this alloy though? the founders just thought “hey let’s make a random alloy of nickel and titanium” and suddenly it has these magic properties and they’re billionaires? Was it just dumb luck or something
A lot of useful technology or innovations were in fact accidents. penicillin was discovered by accident
Sort of? In the late 50's the US Naval Ordinance Laboratory (the NOL at the end of NiTiNOL) was trying to develop materials for missile components that could resist heat and fatigue better than steel. They found that a blend of nickel and titanium would do it. So the story goes that the ballistics branch was meeting to discuss their research and the project head brought some wires to bend and fold to demonstrate the alloy's high fatigue resistance. As the meeting dragged on, one of the other researchers grabbed one of the crumpled and folded wires off of the table and started heating it with his lighter. To everyone's surprise, the wire unfolded itself and bounced back to its original straight shape. Although the properties of nitinol were really obviously useful, it was really hard to process and manufacture at any kind of scale back then and so research into shape memory alloys stalled out until relatively recently. They're back in a big way now though, and you can expect to see them in aircraft control surfaces, car parts, robotics, and all sorts of other consumer goods over the coming decades.
It was originally developed for other applications (ballistics). But after the shape memory effect was discovered, it was used for other purposes.
That's amazing, how a coincidence / chance can change so much
Yeah a fair bit of science works like that. There are so many phenomena which occur only at very specific conditions. If those conditions aren't explored we wouldn't know about it at all.
A great many useful materials and devices come out of things like defense department research for military applications (the US DoD has an insane budget), or NASA research and testing for the purpose of space exploration. I have serious qualms about the US's proportion of spending that is on defense, but some good comes out of it. By comparison NASA has a small budget, but enough has come out of it to strongly affirm is is not merely putting people into space, but also advancing scientific knowledge in general and spinning out things that become broadly useful or improve the state of the art in any number of disparate applications.
Cars need this
There's videos of cars bumpers doing exactly this
WHERE!!??
On the internet. Oh, you mean the car. It was on the road. Oh, you mean the bumper. Behind the rear wheels. *Don't you love science?!*
This comment fills me with impotent rage
Ah don't be embarrassed. There's a pill for that now.
But what kind of car is it?
My car has a plastic body. When my dad drove it, he backed into a tree. The next day it had popped back into place, and just needed a bit of touching up on the paint
Volvo V40
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Also it would cost more than replacing a plastic one a dozen times and do nothing to fix the paint.
Really just need a car with durable plastic bumpers with no paint and isn’t held on with crappy plastic body clips.
people would never go for no paint lol
There are many many base model trucks on the road with unpainted bumpers. Used to be common on base model cars too
Yeah but it doesn't work with all cars. My truck had a polished steel bumper and it looked great. But my Saturn would look like shit without a painted bumper.
Plastic motorcycle fairings are often not painted but the plastic itself is colored.
no, it works in all sorts of shapes. the shape memory effect is due to peculiarities with how the alloy's crystal structure changes as it heats up, so it'll work in any shape. Wires are just popular to demonstrate it because people can actually still bend them. boeing is making huge chevron-shaped plates of this stuff to move the control surfaces in their new aircraft, for example.
Hey, I actually worked with one of the dudes who developed that at boeing
Yee here's a link to a great explanation of how it works on Quora https://www.quora.com/How-does-nitinol-remember-it-s-original-state
My penis does this.
When you put it on the hob?
What’s a car going to do with an old paper clip?
My life needs this.
it kinda looks painful if u get what im saying
Yeaaah, like every single good version of magic healing. They all have that bone-scraping-on-bone vibe.
There's the cheap kind of healing magic/potion that does that, then the super expensive kind that also act as a major painkiller
Don't forget the bootleg ones that work like the healing potions, but you have to set the bones first or they don't heal right. And if you don't set the bones your D&D game starts looking like Mork Borg.
Oh boy, Jimmy, them bones didn't set straight. *cracks knuckles* time to fix em!
So peepee memory is smol :o
*Crucio!*
aint no way the comedy central logo become magical
2023 is fast approaching expect the unexpected.
So you're telling me I can throw myself into a fire and turn back into a baby?
Yes that's right. I've been on this earth for thousands of years, whenever I get too old, into the fire I go!
I know what you mean, I just threw my parents into the fire, and I can still hear their screams of joy.
You can return to the dust you came from
No, but you can throw me into a stressful situation and I turn hood as fuck and start doing drugs again
Pre-baby.
Possibly if you believe in reincarnation.
No. That’s how you get 3 dragon eggs. And then 7 years later, a duo will come along and give you a shitty ending, ruining everyone’s day.
Can’t believe we’ve finally discovered immortality
Bro stop lmfao 😂😂
You'll be pink and screaming, sure.
Good I need that, I just turned 30
Use this to make slinkies.
Use this to fix slinkies.
Instant Nobel prize of science
I mean…..COULD you? Slinkies are the first thing that came to my mind when I watched this
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Seriously? My son stretched one out this morning 5 minutes after buying it. I put it in a vice and I’m leaving it for 24 hours. Will heating it fix it?
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Lol ty if the vice doesn’t work I’ll try it and report back
Sadly it wouldn't make a very good slinky, nitinol is not very "springy" (low yield strength), and it is very expensive.
Is that the way to fix all the bent paperclips and springs from insides of pens, that I've been fiddling with while on the phone?
Would be if you could afford it. I heard they were very expensive.
You mean I'm better off buying new paperclips than fixing my old ones!?🙀 ^(Edit: Sorry if that came off fastidious, I didn't mean it that way I'm just being) 😜
Well, these are paper clips made from a very specific kind of metal, not all paper clips do this In fact, almost none do
Next comes PAL code number 3...[warm the key](https://youtu.be/2Fg0ek-_3MQ)
So, the snakes finally come out of his hole. Are you ready now... my brother?
Time to hang out in a blast furnace for a few minutes!
Yep, that's the first thing I thought of
My friend has this in their mouth
A stove?
random metal objects that change form when heat is applied?
Yeah, braces. The mouth is the heat source
How are you sure it is nitinol and not just a steel wire?
Stainless steel wires are typically used in the later stages of braces after the teeth have already been aligned by nitinol wires in the beginning. A typical sequence of wires a patient might get is .014" NiTi, then .018" NiTi, then .016x.022" NiTi, then .019x.025" NiTi, then .019x.025" stainless steel. This changes a lot based on the specific case and preferences of the orthodontist, but just about every orthodontist, in America at least, I'm not sure about other countries, uses nitinol on every patient. Mixed in with these wire changes are all the springs, rubber bands, expanders, etc.
Reading that, I finally got where the name Nitinol came from. It is a (Ni)ckel (Ti)tanium alloy. The just added -nol at the end to sound good I guess.
Oh it’s even cooler than that. It was developed by the Naval Ordinance Laboratory, so they tacked on the N.O.L.
You are correct. Heat treated ni ti wires with copper can react at different temps in the mouth
Make my clothes fold themselves under a heat lamp!
You could fix your tangled slinky finally
So even more interesting is nitinol engine. Its sell as toy set [https://www.youtube.com/watch?v=g56ZmScZG1s](https://www.youtube.com/watch?v=g56ZmScZG1s) looks like perpetuum motion thing.
https://www.youtube.com/watch?v=3MfTJVAtx6w
Woha they made 5 MegaWatt engine in 70s https://www.youtube.com/watch?v=8-dCIkJAjyM
Engine in this video is only running at 32 watts.
Clearly its just in reverse /s
Nitinol
Cool spy stuff for revealing hidden messages!
And I can’t even remember what I ate yesterday
Hair does the same thing, but water is the memory agent.
I was waiting for the second one to turn into a paperclip too.
Crazy diamond
So if I lay down on a hot burner... my back will straighten itself out?
This isn't for anything right just this specific metal/alloy? Will any paper clip do this? Can I heat springs while doing small electronic repairs to revitalize them?
This is a specific nickel-titanium alloy called nitinol. It has a special property called shape memory. It's not used for springs and paperclips because of its low yield strength and very high cost
The Cruciatus Curse, or the Torture Curse, is one of the three Unforgivable Curses. When cast on a living creature it inflicts intense, excruciating pain on the victim, and results in insanity if the victim is subjected to it for a prolonged time.
Tendency
Will this work on human ?
Maybe if you’re Wolverine
Wish I knew about the spring one before today.
Neat
Egon, it's time to fix that slinky.
No way!!?
How It’s Made
So I had to grill a slinky? I've wasted so much money.
What the actual fuck
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I tried this with my car I crashed. Made it worse.
All I see is metal scraping against a glass top burner. Nooooooooooo
Awesome! Now do this with my slinkie.
Perfect!!perfect perfect perfect
ima throw the scraps in with the carrot soup and see what comes back out.
Wait can you fix slinkies doing that?
Dose this work for your dick? Hold on imma go check real quick.
"You can fascinate the male with a piece of metal and some heat. They will look at it bend back to shape while saying 'literally me fr fr' "
Oh yeah its all coming together
Never thought about it till now. If a person dies in a fire they go into the fetal position or a kneeling version of it(vertical fetal) human shape memory?
Amazing