How Long Does The Forever Pen Really Last?
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- čas přidán 28. 01. 2023
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I used to write with the edge of a metal ruler, works just as well as a forever pen, lasts longer, and it's cheaper
Same, i used to get told off though so I had to stop sadly
But you cant use them as a bullet unlike this one
That’s the most Autistic thing I’ve read today. 😅
but the ruler is awkward to hold
Some metal coins actually work too.
I’m a goldsmith, and I noticed this before with silver, so I made a sort of makeshift pencil from leftover silver.
Later I learned about silver pens being used throughout history and wasn’t surprised. I’m more surprised we’re NOT doing it anymore really.
Edit: I’m just going to add this in here, because I’m getting tired of saying it. People. Silver ISN’T GOLD. The pen in the video is a scam. Silver is expensive compared to most metals, but don’t put it near gold on your scale of value. Don’t come to me with, “lol you know silver’s expensive, right? Idiot.” No shit. I know exactly how expensive it is.
Secondly, (and probably clarifying it more) I never said we should replace pens with silver. No one ever used silver in stead of ink for just anything, they had quills. I just think it would be perfectly possible to see people use a silver pen for writing something important or fancy. I use it for signing cards and stuff. For how much silver it uses, when you’ve got more than just a tiny nugget with a screw wasting most of it, you can make something that lasts your whole life in half an hour with $20 worth of silver. It would cost more than the pen in the video at selling price, but that’s not a pen, it’s a pea.
Also, just want to point out that the material in the video is “a silver alloy”. This isn’t abnormal, silver and gold are usually used in alloy form, but here it could mean literally anything. Either way, it’s overpriced.
cost probably the profit margins aren't high enough
And if pens last too long, companies won't make sales. So...
can't really erase silver pens and for them to work well you'll need an abrasive surface. so it wouldnt work on a lot of smoother paper
Did you not watch the video?
Its not the capitalistic American way to create something that lasts forever.
I've got a great buissiness idea. Instead of having metal at just the tip, you could make it a long thin rod and embed that rod in a wooden tube. Because silver is expensive, you could use a cheaper material such as carbon graphite to save on costs. When the tip gets dull, you could use a device that shaves off some material at the end, forming the tip back into a cone.
I call this new invention the forever pen mark 2
This is like Adam Something slowly turning everything into a train
Genius
Are you mad, man? Think of the consequences!
Took me some time before I realized it's just regular pencil, lol.
Perhaps instead of a wooden tube, we could use a plastic tube. Then instead of shaving down the tube and eventually having to replace it entirely we mount the metal rod inside it such that its position can be adjusted, as it wears down you gradually push the remaining metal out the front so it remains usable. That way when the metal rod wears down entirely you simply insert a new one.
As someone who has done plenty of silverpoint illustration with artist-grade silverpoint pens, they definitely don't last forever and they're not cheap either. What gets me is that you committed to covering that whole page with that ridiculously short keychain version. I can't imagine your hand felt great after that. My hand is cramping in sympathy.
Yup, we’re back to silver point again
I was wondering why is it so tiny and difficult to write with. Apparently their selling point is that it fits in a keychain so you can use it whenever you don't have a normal pen. But for $35 pricetag you might as well write with your keys.
keys would be harder to write with, but sure
don't they make actually holdable pens also, though? I thought they did?
apparently you can just buy specific diameter jewelry wire, and feed it into a mechanical pencil, and use that, lol (diameter depends on the pen, the person I heard from, used 0.5mm or so)
You didn't watched the whole video, it's the keychain version there's other versions available
it's so you can keep it hidden for when you need to write on your Death Note
Lmao get 2 of these and then trade then for a full price AAA game
I'd rather spend that on a nice fountain pen.
I think that the “forever” part is that one can leave the pen in a drawer or emergency kit for years and it will still work. It’s not that it will write forever, but that one can wait forever to start writing.
right on point "it will take you forever before you need it.
Forever pen seems like forever scam
I can wait forever? Seems perfect for my essay
You can also wait forever with a regular ink pen. It wouldn't dry out while closed. There's no way for the moisture to escape. And that's with a very cheap pen. Imagine how much better an expensive 30 dollar pen would last. Decades? Centuries?
@@arsenhere7020 true
In germany, the pencil is called "Bleistift" - translated: "Lead pen", and for a quite some time, those pencils were made with a lead core. They eventually changed to graphite, because people would chew on their pens and lead is a poisonous material, but the name "Lead pen" stuck with the new hraphite pen
Same here in arabic countries, pencils are called "qalam rasas (قلم رصاص)" and basically, qalam means pen, and rasas is lead but the material of the pencil core is not lead of course
same in the USA, we say "lead pencil" but it has been graphite for a while
Same in china
@@shedinjask
"lead" in pencils is partially misconception as graphite was called "black lead" upon discovery.
There definitely were some pencils that contained lead as it was cheaper, but in modern times there shouldn't really be lead.
But even those modern pencils may have had lead until recently! Not in the core of it, but in the paint (which explain chewing concerns actually)
@@shedinjask Same in Aus. We call them lead pencils because the name was never changed when lead was swapped out for graphite.
6:45 A lot of the ink is still left on the ink pipe. the proper way to do this is: to take a paper (like u did) and also a small amount of cotton and measure them out or zero them out on the scale. then push all the ink out with cotton. then measure paper, ink, and ink sock cotton again. this way you will get a much more accurate ink measurement.
the forever pen may as well be called the not-so-forever pencil!
more like not-so-forever not-so-pencil
Or the not-so-ever pen
Not so cheap
I'm sure that would sell much better. 😉
for never pen
This is the first time I've seen him promote a sponsor that sounded like snake oil. Would be interesting if he did an episode on that device proving it actually worked.
Edit: I did a really quick Google search on this thing, and surprisingly, almost all of the reviews are positive. I found only one negative review from mashable. But that reviewer mentioned she didn't have very many wrinkles to begin with so this device might not have been meant for her.
Unfortunately I didn't see any sort of more scientific review. But I only did a very quick search.
Ha! Same thought. But he said f it. Money is money.
Yeah, it's a straight-up scam. Think about it. If anti-wrinkle creams, facelift electrostim, anything WORKED, how would you find out about it? Paid ads? Or that every rich/famous person who needs good image (celebs) is using it? Like Ozempic.
Wow, sounds like sponsor options are drying up. Odd.
@@aurelienyonrac maybe, or maybe he did some research into it and decided it's legit. I hope it is and I hope he'll share that. I would be really disappointed if someone who made videos to educate people started promoting junk products.
@@merk1701 it's not legit
Nothing says I love you more than giving your significant other a device that reminds them they need to do something about getting old, and not looking as good as before.
The cool thing about this is that it is also probably going to last longer on paper than an ink pen, some inks are naturally acidic and will eat through paper over long periods of time whereas metal oxides are generally basic so they will actually stabilize paper since paper can be naturally acidic also.
I thought it was called forever pen because the writings or drawings would last "forever" and don't have to be stored in a certain way such as charcoal drawings for them not to be deteriorated.
I've never heard of forever pen before but it seems to me this is the point of the "forever" as well
Seems they call it the forever pen because it should last a long time www.worldstiniest.com/
@@TheActionLab it says it will last in durabilty xD good marketing
Their page says "never needs refilling". For $35 this is extremely overpriced.
@@desmond-hawkins price is what people is willing to pay
3:42 is when sponsor ad ends
6:00 I can smell this image.
A true forever pen would be when you stop looking at it for one second and the pen is still there on your desk
That you mentioned another pen using copper(?) makes me wonder how fast other metals wear down with use. Would be interesting to see a comparison of several metals based on cost and lifespan.
well, its largely just how hard you have to press, and how large the area you draw with, etc
kinda like how different grades of pencils work, like a 2B pencil is just way softer than HB, but doesn't mean it AUTOMATICALLY wears down faster, just that at similar pressure, it probably does, as you need way less pressure to make a mark
same with the metals, tin, lead, and silver, were historically used *BECAUSE* they were soft enough to draw with, you don't really want to have to push that hard while writing/drawing after all, makes it way harder to do stuff, and tires you out
silver was especially favoured as it was less blunting than lead and tin, and as such more accurate (and silver, itself, isn't actually all that expensive, jewelry and such is expensive because of the massive complex labour that goes into making them, both design and production)
It's definitely a point of diminishing returns thing. Obviously if it lasts longer it has to leave less material behind, thus it's way more difficult to write with and the marks are way less visible I imagine. Also, I wouldn't advise writing with lead, having traces of lead from writing, all over you and around you on papers can't be very healthy.
Lead actually works quite well too. The only issue is toxicity.
Copper or silver wire and a pin vise/lead holder would be a far more economical way to achieve this same effect. Kind of makes me want to get a lead holder....
I know it will shock you, but all metals are metallic. So they all basically reflect light. It will just depend on how much you rub it on and the color of the metal.
Whenever I have a question occur in my mind, action lab has answered many of them with experiments. Thank you. One of the only channels which has kept feeding curiosity for many years
I agree.
I Love that they’re sponsoring you to give us great content however, I don’t appreciate that they’re making you advertise false beauty products that WE THE SCIENCE COMmUnITy know doesn’t work.
Anyhow, I still love learning from your channel
I hope my science teacher was like you sir !
You’re explanations are really great and I can easily understand even the hardest topic from you!
2:38 Wow it's not April' fool's day yet. That's some quack product you're advertising.
Its real btw
It’s real, this guy has a science channel and he likes to review these weird products. He is not sponsored by them.
@@Aamir-2999 If you watch the video at 2:38 it's clearly an ad for compensation (for a quack product, which is sad because his channel is supposed to be about science).
@@gblargg ohhhhhh I thought you were saying he was advertising the pen.
@@Aamir-2999 Hah I see.
Pencil: Look what they have to do to match a fraction of our power
I literally just applied for a grant for metalpoint supplies. You can make any paper effective with metalpoint using silverpoint ground, which he mentioned, but is actually kind of like Gesso, where you apply it as a coating over the paper, and when it dries you can write on it way better
I have a bunch of FMJs that flew 1000 yards... never thought about doodling on stuff with those.
Oh no! The shock your body into shape fad is coming back. Last appearance was early 2000s. I bet they fixed it this time
3:30 modern day Quackery
Sidenote, that sponsored thing as a gift for significant other is terrible. I don't want anyone to obsess about "aging without aging" let alone my partner. She'll be just as gorgeous with wrinkles.
Thanks for the video review and also thanks to the commenters which provided some other interesting insights. I once put together an Altoid's box survival kit as part of a contest. Since space is limited, when possible, it is better that any particular item has more than one use. I added some Gremlin Green removable split shot made of tin as part of fishing portion of the kit. This avoided any lead contamination to the kit and I found one could write with them on paper if you needed to leave a note, or record some information.
So if it is just a metal alloy, I have a question. Are the drawings conductive? And if yes, can we draw electric circuits on paper? That would be awesome!
Even with a normal pencil you can have a conductive circuit
They have these already. They use a gallium amalgam kind of like an ink.
A pen is made of graphite. You can make circuits by drawing it. Yes.
@@aurelienyonrac no, a pen is not made of graphite
@@somemes9546 graphite is pretty resistive though
this product you are advertising not only sounds like nonsense. but knowing something about facial muscles i would like to point out that if you want a contoured look, you don't want the muscles stimulated because it makes them bulkier rather than slimmer. try going to the gym and you'll see, muscles get bigger when exercised. love your videos btw.
New idea: instead of wood round the outside, you could use a hollow plastic tube with another smaller one inside. The smaller tube would be hollow and contain some sort of liquid that could stain the paper.
It could also have a small metal device on the end made up from an outer shell that holds a small ball bearing that would spin freely when it is dragged against a surface,(such as paper), this contraption would slot on the end of the tube and the liquid Inside the small tube would seep down the inside and coat the ball bearing which, in turn would rotate against the paper and stain it. Nice!
You should patent that idea right now, else a time traveler might steal it and distribute it many years ago!
@@BierBart12 😂😂
@@BierBart12 Good idea!
that’s just an ordinary ballpoint pen.
@@stripyd007 That's the joke.
I think the term forever just means it's going to last a really long time. You're not going to cover all whole paper with the forever pain it's kind of more if you need to like sign a check or just quickly jot down something you'll be able to write quite a bit. And then she won't have to worry about if the ink exploded or keep shaking it because the Ink's not at the bottom which is always a pain so this is pretty cool.
I'm a bit worried about you hawking the micro current device. It sounds pretty Woo.
This bothers me too.
Well, the guy isn't a scientist. He talks to the viewers like they're eight years old. This shouldn't come as a surprise.
Same. There's no way a science based show could believe that crap works. Very disappointing
He also has some kind of mark on his cheek. I like to imagine that Goop ass thing he's shilling did that.
@@virionspiral I’m pretty sure that’s a mole. They’re normal.
7:22 The term pencil lead comes from graphite which was confused with lead ore and called plumbago (Latin for "lead ore") because of this it is called a pencil lead even though pencils never used lead tips
I've got a crippling case of Lumbago
Lumbago
You are top-notch, brother. Great science from you and just as good review!
Fun fact: many of the Renaissance drawings are not lead or graphite, but are in fact silverpoint drawings
The forever-pen can write in any orientation. Also, because it is not easily erasable, I would think it could probably be used for signing documents. Then it would last longer. One main advantage is there is no ink to leak, ruining your shirt, in the hot summer. :-)
Officially signed documents is a great use case for it! You could probably create a special alloy for yourself and upon further analysis, determine a forgery
It is also awesome for lefties because of the lack of smearing.
Well for important documents we dont know if the metal can be removed via a chemical that doesnt interact with rest of the paper but does so with the metal, thus opening a way of forging papers. With normal ink its pretty hard to erase that.
@@k.mankeiru8359 The only way to effectively remove the metal traces would be dissolving them. Without using very corrosive acids, I could maybe see this being possible using a method involving the principles of electroplating, but it would be considerably difficult. Ink can easily be removed from paper using solutions of water, alcohol, maybe some hydrogen peroxide or bleach, etc. No matter what you do, it will probably involve liquid of some kind, necessitating ironing out the wet paper to get it flat after being wrinkled from water
@@k.mankeiru8359 nah metal would be harder to erase
Still an amazing concept for a pen
nothing new though, as James said, the term "pencil led" comes from the times when actual led was used to write with :)
its really noy, at all
It's literally a stick of metal. Not amazing at all. We have just had better writing instruments for so long that it's been forgotten about.
I own some that works in a similar way, and is advertised as being an "endless pencil", because it is erasable, so erasable versions do exist.
Also mine are really cheap and can compete with pencils in economics easily, especially because you can screw out the tips and replace the tips only.
The main benefit of them is that they are like an erasable pencil, but you do not need to sharpen them for a very long time.
Having a 30 dollar non erasable pencil like you say you have, doesn't really seem worth it, I agree.
Can you check what material it is?
The best and easiest thing to find as a “forever pen” is the metal wire from a spiral notebook. I used to write on everything with that in school 😂
A gift for your loved one!
"Here love, you're looking rough, use this to sort your face out! Love you!" 🤣🤣👌✌
There are metal Carabiners that are used as key-rings, bottle-holder, during paragliding, wall climbing and even camping. If you scratch the carabiners against while wall or even white paper, it will leave a greyish mark. I think the chemical property of forever pen is also the same. BTW during my school days, I wrote everywhere in classroom wall using the metal Carabiner.
Around 50 years ago, I worked in an office. Some days we would be wrighting in books all day. One morning I got a new pen. I needed a second just before the end of my shift.
Lemme guess.. not forever?
_💀_
@@Duolingo5476 Duo from Duolingo? 😲😲😱😱
@@Duolingo5476 Please don't hurt my family.
"Diamonds are forever"
Lets just make a diamond forever pen that costs 1mil
@@Duolingo5476 i did my Spanish lessons please release my family
This reminded me of my grade school days, when the eraser would wear down on the pencil, and thereafter leave black streaks until you decide to get a new pencil or stop using that eraser. The metal that holds the eraser to the pencil is super soft.
I have never heard of a forever pen but it really makes sense for certain applications where conditions are not normal like a vacuum or under water or at very high or low temperature. I wonder why NASA never used them on the various space programmes?
Thanks as always for the really interesting content
i've done something similar with the tarnished copper bolster of a knife that i made it left a dark coppery streaks on the wooden self that i used to use as a desk and worked surprisingly well as a way to clean and polish tarnished metals.
I'd be interested in seeing a similar experiment with one of Pininfarina's "forever pens", as they claim that their pens micro-scratch and oxidize the paper rather than leaving metal behind. I'd love to see if it's just marketing BS or actually something new
I'm pretty sure oxidizing (normal) paper means burning it... which I guess you could do, but I'm not sure it sounds like a great idea.
@@jlco burning is a way to oxidize, but not every oxidation reaction is burning.
@@FAB1150 You're right. Still, sounds like something that might work inconsistently on paper not formulated for such a thing... idk, I'd have to look into it further
@@jlco yep, they're super secretive about it though, so it's pretty hard to find information about it.
It does leave a much lighter line than the "pens" in this video though, so... Maybe? It's called ethergraf if you wanna look into it
@@FAB1150 Their site says it doesn't work with paper that has certain additives, so I'm inclined to believe it's legit.
Though, the video on the site seems to say it works by the same principle shown here, so... I'm not really sure what the deal is.
When I was a kid, I didn't have a pencil handy, so I used the soft lead bullet tip of a live hunting round. Wow, did that freak out the 2nd grade teacher.
45 years later, I find out I was doing something that's been used for centuries, known as "metal point" writing. Nice.
Hm... would something like that work for preparing parts to be electroplated? Or for making really thin surface electrical circuits? Maybe if you do a thin circuit along the line where two prints will be joined so they get power when touched together along with a kill switch, you could touch them to heat and fuse them. Sand it, draw thinner lines at the joint, draw thicker lines to the edges. Use the thicker lines to hook up one lead of a power supply. Clamp together, turn on, wait for indication of part fusion. Turn off, remove leads. Sand off conductive pathing if desired.
I remember these, they were "space pens"
Space Pens still used ink. They have a pressurised cartridge that allowed it to work upside down.
@@mikevsamy and now you know
The BIC pen will write, per specs, 1 km of linear writing. The "forever" pen, from your tests, write for 4 km of linear writing.
I believe the only advantage is for signing checks and documents, since it is non-erasable.
For signing important documents, I do prefer the Fisher pen, which is pressurised with nitrogen and uses a pigment ink, which is very hard to erase...
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Space Pens are cool af
3:03 Following sponsor instructions and questioning lifegoals at the same time
Question. If it writes on almost everything, could you write on your skin, and would you not be able to wash it off or erase it?
the fact its small and on a key chain is nice, no ink to accidentally get on you or explode in your pocket. you can write on pretty much anything, and it can be used under water is huge. like being able to communicate while scuba diving is pretty important lol. I like this thing, it may not last long but its pretty neat as a little key chain add on. I think ill get one.
Its not like scuba divers can't communicate through radio or anything..
It would be cool to sign a deep sea contract though
@@Lopeped-Cring You typically can't because you have the regulator shoved in your mouth. (though there are masks that don't do this, they are expensive and less practical). There are writing boards available though and they're often resetable since you wouldn't want to be messing with a sheaf of paper
@@Lopeped-Cring "scuba divers communicate through radio"
What scuba divers have you seen?
@@GAMER123GAMING none, its the perfect example of "if you don't know EXACTLY what you are talking about, you should probably shut up"
Now let me live in peace, forgetting I ever said that
@@Lopeped-Cring Bro calm it
Always remember that metals can be absorbed through the skin. Nice job, thanks.
human boody needs some metals
Some metals can be absorbed through the skin. Only heavy metals (except bismuth) are toxic. Most lighter metals aren't absorbable through skin contact or are such low toxicity that their effects would be negligible. That means things like aluminum and copper are not dangerous when used like this.
@@bri4rpatch129 Isn't lead (the very same he's holding at the end of the video) dangerous as well?
@@YellowMilk14 Not really just by handling, but don't lick your fingers
@@TitaniusAnglesmith @Bri4rPatch thank you, I thought skin exposure was an effective route for building up intoxication
I use the cheap amazon knockoff forever pens that’s 2 for $5 and you can get 20 replacement tips for $5. I just like them because they never dry out or have problems writing and you don’t have to sharpen them like a regular pencil. A mechanical pencil would probably work as well, but they can have cheap plastic mechanisms that break etc. I just like the cheap forever pens for being solid metal and dirt simple with no moving parts.
I don't know about it but I used a pen made of aluminium or some steel alloy and it worked too. I used to think it's because of some dust on pen. Never knew it was forever.
Their current claim on site: "last as long as 500 pens". Original idiegogo said "lasts practically forever". This is old tech, abandoned long ago because it does not work well. It writes too light. Plus, you can easily make your own with soldering metal (even lead free)
according to the experiment in this video, it seems like it only lasts as long as 5 pens
Why didn't you use a regular pencil to compare it to those two? That would have been interesting.
I'm glad I watched your video before purchasing one of these pens, I believe I will stick to a regular ballpoint pen. Thank you for your review. It was very informative.
I remember having done this with the bismuth crystal I own, discovered this property by pure chance but I did not know it woks with other metals as well
Out of curiosity, could the “forever” apply more to the drawing created with the pen? A “permanent” marker mark will fade with time/sun exposure/friction. I have no idea about marks from one of these “forever” pens and am curious.
The nice thing abou the forever pen is that if you DON'T write a lot, you never (forever never) have to worry about the ink drying up or gumming up the ball. So this would be a "forever functioning" pen at the limit of its ability to have enough writing "fuel," per se.
I keep one of these tiny pens in my backpacking kit for note taking/writing on my maps if I need to.
I actually did a similar thing with a chunk of bismuth, and it was sure as heck interesting!
I don't get all these comments dissing a microcurrent device on a science channel? Microcurrent has been proven to be an effective cosmetic treatment in-office as well as for at home use. Some of you need to go outside, touch some grass lol
I really like this channel and I don't mind this ad, because this device delivers quality (speaking from my own experience). He still has my trust - he is 100% valid
@@moniqueatkins5011 agreed, people just want to be negative for the sake of being negative. They put creators on some imaginary pedestal and hold them up to some impossible standards...
@@vivianachessari4866 Yes! Everything is so black and white these days, nuance is lost and there's no room for informed discourse anymore. So what if it's a paid advert? If the channel was to come out with a video about microcurrent treatments in medicine and/or cosmetics, I'm sure people would be all over it; but when it's part of an advert? Forget it, must be rubbish. And it's not just on the internet anymore, people are like this in real life too...
yeah, people like to critisize youtubers promoting stuff... meanwhile this one is actually great, I have the mini one- love it.
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Action lab scribbling randomly, " I can definitely feel it getting duller as I 'WRITE' with it."
this has happened to me when putting metal parts on paper and such. I didn't know they made pens using this sort of writing.
Bought one of these on Temu a few days ago, appare tly uses carbon and zinc alloy for the tip.
Had me thinking about a lump of silver I melted a while ago, might try make a pen tip
bro what the hell was your sponsor???
Thanks for the calculations of the wearing out. This was very informative.
used to do that in class with the rounded parts of paperclips
One thing i see in favour of the forever pen is that depending on the alloy it is made out of it seems alot more environmentally friendly compared to the plastic pens that are contributing to landfill, atleast what is left of the forever pen could probably be fully recycled
Or you could just use a pencil.
Or you could refill your pens
This is the quality content i come to CZcams for.
Really? You gonna buy the micro-current device and make those skin cells stronger?
@@Briaaanz this is about a forever pen. But I do own a micro current device just not sure how that's related to this video. Perhaps your CZcams wires got crossed.
@@ayannadivineempathpsychict9838 if you watch the video, he does sponsored advertising in the middle of it
@@Briaaanz I skip the sponsored stuff CZcams premium you just click past it.
Acts like those silver pencils that people used in the 1600s for drawings
almost nobody nowdays actually knows/remembers that, though, outside of accidentally rediscovering it all the time (just like quite literally scraping any metal thing on paper hard enough, lol, like a metal ruler, or whatnot)
@@jan_harald who would "remember" that?
@@dawgma People who lived in the 1600s should remember it, but, unfortunately, we are a species with amnesia.
There’s also nothing forever about your sponsor. I’d actually like to see you test your genius wrinkle remover using science like on the rest of your awesome, very respectable videos!
I love the commercial, perfect gift for a birthday; telling them they look old.
I wonder if the keychain version wore even faster as it wrote most of itself out inside your pocket...
Anyway, I have to admit I still like the idea, maybe as a memorabilia (retirement gift from colleagues), or for special occasions.
Nice video, is the trace left by the forever pen conductive ?.
should be if the base metal is conductive, although depending on how thick you color the line would determine a resistance value until its a more solid connection
my great great grandfather had a writing desk with a journal and pencil tbat he travelled the world with.... except it wasn't a pencil, and we always wondered what it was until now!
Paper made using "ground" ... The paper is mixed and pressed with the ground in it's solution before the water is squeezed out. This makes the paper more brittle or stiff, but does make the paper very rough to the touch like fine sandpaper. Talc pumice, chalk, plaster, calsium carbonite all can be used in a medium for grounds, in paper they do the same thing to imbibe porosity into the paper.
That's interesting. In Chinese word: pencil = 鉛筆, 鉛 = lead, 筆 = pen
Also in German: Bleistift.
I wanna try this, finally something that won't smear
Cool video. You should put a bit through a mass spectrometer and see what metals are in it.
Things written from it will be seen as "Manuscript" thousands of years later , how cool is that
I used a coin when I was younger to scribble on a white paper because I saw that it made line marks. I only did it for fun because I was curious. So this doesn't surprise me at all. 😆
Are the traces conductive? Can you draw a circuit with it?
It would be interesting to measure the resistance 🤔
They should be as conductive as the material being used
I think metal loses conductivity when oxidized
@@kamal3777 Depends on the oxide. Aluminum oxide for example is an insulator. Copper(II) Oxide is conductive. Copper wire for example has a resistivity of 0.00000177ohm*cm. Copper(II) Oxide 10ohm*cm. Aluminum oxide 1*10^14ohm*cm. While copper oxide is not an insulator, it's not really a great conductor but you could use it to draw a resistor on paper.
Can you measure the resistance of the pencil markings?
I invented the "forever stick" it writes on any sand, dirt, mud, you name it
An electrician gave me a carbon arc rod he used as a pencil 30 years ago. I still have it in my toolbox.
Carbon? In which form, graphite?
@@TiagoTiagoT Inanimate
@@TiagoTiagoT yes, graphite
@TiagoTiago i doubt he'd give him a solid diamond rod so graphite
This must be why it is called pencil lead, even though it's really graphite. I bet at one time it really was lead.
It was. In fact, the school I teach at had some pencils with bonded lead in them from a long time ago.
He literally said so in the video lol
@@fatherofdragons4880 yep, made the comment right before the video ended
@@insidejazzguitar8112 lol I'm guilty of that from time to time!
NOBODY: forever pen made of metal.
Magneto: This is Perfect. Now let me do my magic, HOLD MY BEER.
'it can wright on anything"
That one piece of paper that refuses to let me wright on it: "You dare oppose me mortal"
I was wondering how long the Forever Pen would last. It does pretty well compared to the cheap ball point, but still that's not exactly overwhelming!
Another thing to point out when comparing with the standard biro is that this mini forever pen is only 2.5 cm long and can fit on a keyring, and is very unlikely to fall apart like I imagine an equivalent ball-point would if it were a tiny, plastic 1 inch biro. I still thing it's an overpriced gimick but still, could be handy for some people I guess.
@@marcosolo6491 I'd rather use the keyring, lol, keys tend to be rather sharp
also I do have a rather similar size pen, lol, it's a combo of a tiny (like half a finger's length?) phone "stylus" for a keychain, which you can unscrew in half, and one half remains stylus, other half is just a tiiiiny pen ;P
best part is, you can always refill it, just get any cheapo pen's core and snip it to short enough ;P
I used to use the metal part of a pencil that holds the eraser to do the same thing
I have used many thousands of cheap ball point pens in my life, and I think I only ever used ONE until it was empty.
They would usually break, fail or get lost long before they ink ran out. The exception is my expensive fine roller balls. But they only sit on my desk.