It helps to have your name permanently engraved on valuable tools, but engraving is difficult. Rob shows an easy and inexpensive way to label your steel tools permanently.
That was a very practical technique. UA-cam tutorials today be like "to etch your name on a tool you'll need a 69 axis CNC, a CO2 laser cutter, an ASML photolithography machine, a flux capacitor, and a light saber"
UA-cam tutorials today are made by rich twats who just press buttons on tech that does all the work for them. This channel is more useful for people without infinite budget to buy the tech of CERN
Man, I miss this show. Simple and to the point, without trying to be hip and/or cool - a true genuine childrens programme. It was the only time I recall choosing an educational programme to watch for pleasure and I am still learning from watching it.
My father grew up with this show and tells us stories about all of the wonderful things you made. Many years later i have discovered it for myself on youtube. Thank you for this absolutely amazing show, Well done.
I'm an American coming to this show for the first time and I already love it. What a great mix of gentle, quiet amiability and practicality! I would have loved to have had this show when I was a kid.
Any needing to know - as mentioned Copper Sulphate can be found in garden/hardware stores but usually under some brand name. It is used as a Fungicide to prevent Black Spot on roses, so if the store doesn't know it by active ingredient, use that description to find it. Although the one I use comes in a powder, rather than crystals and is more opaque in liquid rather than transparent and will settle after some time.
just saying, the miracle grow blue crystals are copper sulfate and you can use it! when i saw this and he pulled out the solid stuff I instantly recognized it
This is a fantastic idea - thanks! I'm 45 now, and remember your show being the highlight of my day when I was a kid. I've been an engineer for the last 23 years, so you probably had an influence!
He forgot to mention that copper sulfate is nearly impossible to get out of clothing and it’s a skin irritant. If you get it on your skin in a lab, standard procedure states you wash the area under water for 15 minutes before continuing work. If you get it on your clothing or skin in this situation though, you gotta be pretty clumsy
I've used copper sulfate for years to inhibit algae growth in my pond. It stings in cuts, for sure, but I've never had it stain my clothes. My standard procedure for skin exposure outside of the lab has always been a vigorous 1 second swirl in pond water, followed by wiping my hand on my trousers (assuming it was my hand that was CuSO4'd, of course).
@@Berqist do you use an aqueous solution or the solid form? The solid form doesn’t stain, the aqueous form does. I can speak from experience as this happened to me just 2 weeks ago, as coincidence would have it, in a lab at university. My arm was itchy all day despite running it under the tap for 15 minutes and my clothing had to be put under hot water for a continuous 8 hours to get the stains out. It was only a .1M solution too. I made this comment only because the Copper Sulfate he uses in the video is in aqueous form.
@@ryanpohl2709 lmao. Psychosomatic for sure. Nocebo effect, or scrubbing your skin with toxic detergent in a panic caused irritation. Who would have thought.
I bought a cheap ($ 2) motorized engraver to do the job, but it is very difficult to control the writing because of vibration. Yours is a better, and easiest solution.
How have I not seen one of the UA-cam scientists do this recently? It'd be such a good video in modern quality and i know there's a few youtubers with the energy of Rob here. Absolutely amazing video.
One detail: He's not washing off copper sulfate, but rather iron(II) sulfate, since: CuSO4 + Fe -> FeSO4 + Cu that's why we see elemental copper showing up - it's a simple displacement reaction since iron is more reactive that copper (reacts with acids while copper is fairly unreactive)
He's washing off excess reactant (copper sulfate) to prevent further reaction along the tool that would "smudge" the etching. The iron sulfate won't react with the iron
I love this video, it’s straight to the point and it’s fun to watch. I looked at the thumbnail of the video and saw a toothpick and was thinking that you were simply using that to etch your name into the tool. Glad I clicked, it’s interesting! I don’t even have tools or do any projects requiring tools and this video is going in my playlist. This is like ASMR but better, lol.
Many thanks. I am not sure what ASMR is over there - here it is the Australian Society for Medical Research. Lots more videos at ua-cam.com/users/curiosityshow - spread the word - Rob
@@CuriosityShow ASMR is the name of a reaction some people have to certain auditory stimuli which makes their scalp tingle. People speaking softly and the sounds of writing are common examples, some people love Bob Ross for this reason. Essentially, it means that you have a great voice and that your show is very relaxing to watch, which I certainly agree with.
Many thanks. Curiosity Show was a national science program for children featuring Dr Rob Morrison and Dr Deane Hutton. It was made in Adelaide, South Australia and screened nationally in Australia as well as in Europe, Asia and Australasia (14 countries) from 1972-1990. Deane and Rob intentionally used everyday items around the house (like old cans) so that children could repeat the demonstrations with materials they had to hand. In 1984 Curiosity Show won the Prix Jeunesse International, the world's top award for children's TV programs. Rob and Deane are steadily uploading segments at ua-cam.com/users/curiosityshow Why not subscribe?
0:05. You haven't got an engraving tool, well that's rough. That comment made me crack up! The way he said it was perfect! Great channel, glad it was suggested to me!!
The school system could learn a lot from watching this show. I've been binging it since I found it. It really makes u want to learn so much more stuff. It sparked my brain
We can really see how far we have regressed after watching clips of The Curiosity Show. Rob and Deane presented to children like they were intelligent and responsible with no hint of any PC nonsense and as a result the show is timeless. You can't say that for shows of today.
We just got a bunch of kitchen tools for our charity team, been feeding Hurricane Harvey emergency responers. I am going to try this on our new stuff. Thanks for the informative video!
I did an experiment long back when I took some copper sulfate solution and put it in a small iron tin, Ended up with coper sulfate leaking out of it, and a small lump of copper powder. I thought it was a great idea to make copper, and wondered why everyone else haven't figured it out yet...
Best channel on UA-cam. Wish I could have seen this show in the UK. I'm going to have to try this sometime, thanks for the great videos, and also for replying to people in the comments. You have a really nice community on here! :)
You could probably also use masking tape to tape off large sections, cut out designs from the tape, and then apply the copper sulfate to the unmasked portions. Could maybe make some more intricate designs that way.
I feel like a little kid watching a educational kid's show on a saturday morning in the 90's again. Thanks for the video Rob and the rest of the team. I am hooked!
For larger surfaces you could also template a design in adhesive vinyl before spraying on the paint and removing the vinyl before it dries. Great for swords with intricate designs and the like.
Just etch it with the vinyl as the "stencil" instead of going through the hassle of painting it and removing the vinyl to use the paint as the "stencil". Whatever isn't covered in the vinyl is going to be etched.
This is a great, to the point video with no babbling! However, I would put the etching on the non working reverse side as you wouldn't want to ruin the edge of the etching when stoning your chisel.
@@okeyhehe1728 The difference in the accents is always most obvious in the vowels. We pronounce them completely differently, the rest is admittedly very similar.
will this work in all kind of tool steel like chrome- vanadium, Chrome-mohibdinum etc? If the tool have a coating of chromium (like most of the wrenches) will this method will work?
One thing I have discovered, is that thieves don't mind a toolbox full of tools with other peoples names on them. They must have had honest thieves in Aussieland, back then.
For us who grow up before cable TV we only had a few channels. Shows like this were popular and it as easy to find when we had only 1 or maybe 3 channels to choose. We also had newspapers and magazines that had lots of knowledge. Today there is too much of everything and everything has to have lots of special effects. In short, it seems people are getting less intelligent and it make me REALLY miss the old days.
Thanks. Curiosity Show was a national science program for children featuring Dr Rob Morrison and Dr Deane Hutton. It was made in Adelaide, South Australia and screened nationally in Australia as well as in Europe, Asia and Australasia (14 countries) from 1972-1990. Deane and Rob intentionally used everyday items around the house (like old cans) so that children could repeat the demonstrations with materials they had to hand. In 1984 Curiosity Show won the Prix Jeunesse International, the world's top award for children's TV programs. Rob and Deane are steadily uploading segments at ua-cam.com/users/curiosityshow Why not subscribe?
Yeah, I wish we were more limited in what we could watch and read about. Being able to find anything they want is making people stupid. Take what you're given and learn more than you ever could otherwise.
Good tip saw this on tools of the older dudes in the shop and thought it was made with an soldering iron. I have to say I like this show it’s quite relaxing and interesting no such thing as fast cuts every second.
It should in theory. Chromium is well above copper in the metal reactivity series so it should displace copper in solution. Chromium metals reacts with both dilute hydrochloric acid (forming chromium(II) chloride) and conc. hydrochloric (forming chromium(III) chloride). However, chromium tends to build passivation layer when in contact with concentrated and/or oxidizing acids. I think you might have success with copper(II) chloride solution - which can get more concentrated and is more corrosive than the sulfate. Safety gear is a must!
& you've got about an inch of usable steel to sharpen away until the edge is compromised by the non-flat back of the chisel, with a blunt bit where the letters are. Do it on the spine, front side.
No one uses up that much of their chisels. And if they do, they're clearly using them for rough work and a slight blemish on the edge won't matter none.
Tonis Piip I’ve got several chisels I use for carving sharpened down to about 2” from the bolster. They are old, and the steel is good. And it does make a difference to a super sharp edge, as does any corrosion. . Stick to commenting on what you know about.
The paint isn't even touch-dry at the point that you etch it, so much of that remaining paint will just come off with a bit of mineral turpentine and elbow grease.
Please don't take this offensively - - this VID appears to be vintage 70's. Don't get me wrong, it was VERY well done, learned lots & quite enjoyable! Cheers from Aurora, CO. U.S.A.
Why would that be offensive? these segments were from Curiosity Show, which was on air from 1972 to 1990, so you are spot on with your assessment - keep watching, as we are steadily uploading segments from those 18 years of broadcasts; Rob
+CuriosityShow - - I didn't want to sound like I was condemning the video for not being a little more current. That's what is nice about the science, it still holds value today. Thank you so much for your kind response - - I'll look up your other VID's as well.
I really think it is a generational thing, some people have grown up in a society that tells you that you have to be in fear of offending another at any moment. That you are you a horrible person if you offend someone even though you may not have intended to, therefore it puts you on the defensive constantly because you never know how or why you have caused offense especially with all the victims this society creates. Being a victim is currency now days.
I remember watching you guys in black and white on my Grans old AWA set. Great memories, you guys really helped create in me a need for knowledge of how things work. This show fascinated me and my cousins. Great to see you are still kicking about and thanks for all these nostalgic uploads. Thanks to you both.
gading Jp It depends a bit on what kind of pewter. Old Pewter is largely lead, but that is toxic, so modern pewter is mostly tin. Sulphuric acid should attack both, but it is dangerous. You could try this copper sulphate, which is safe, but I don't think it would leave a visible bit of writing the way it does on iron and steel. - Rob
If you look at the electrochemical series, Fe3+ wants to grab electrons more than does the Cu2+ in copper sulphate. Ag+ is even more hungry for electrons (even stronger oxidiser). So you could try ferric chloride or silver nitrate, however these are more toxic. Ferric chloride is good at etching copper.
Steel tool, perfectly clean, painted and scratched above. Etching solution is water and ordinary salt, rather than copper sulfate. Copper sulfate is fine, but it has a built-in limit to how deeply it can etch and doesn't work with all metals. Steel is connected to + of 9 volt radio battery. Metal collar of small paint brush is connected to - of same battery, using salt water as 'paint'. 'Painting' salt solution with the charged brush strips steel selectively thru the paint. The longer one paints, the more steel is removed. Works on any common metal and most of the Nobles.
That was a very practical technique.
UA-cam tutorials today be like "to etch your name on a tool you'll need a 69 axis CNC, a CO2 laser cutter, an ASML photolithography machine, a flux capacitor, and a light saber"
Thanks - much appreciated - Rob
'Be like'. Damn that's an annoying phrase.
UA-cam tutorials today are made by rich twats who just press buttons on tech that does all the work for them. This channel is more useful for people without infinite budget to buy the tech of CERN
@@runneypo Like DIY Perks for instance. It's disingenuous.
lol
"If you're imprisoned here like me" this man's humour is great 😂
It is Australia after all
boy was this ahead of its time
I will use this technique to right my name on the Main Socity gate lol
I'm going to put my enemies name on my shiv so they can't pin it on me! 🤣🤣🤣
Clip is at 2:20 for those wondering
so this is the Bob Ross for tools? ;D
Yesssss, we all need more tool Ross
Rob Boss it is
No
For everything, for literally any subject you can be curious about
Pretty much, yeah :DDD
Man, I miss this show.
Simple and to the point, without trying to be hip and/or cool - a true genuine childrens programme. It was the only time I recall choosing an educational programme to watch for pleasure and I am still learning from watching it.
Thanks, Matt - lots more segments at ua-cam.com/users/curiosityshow - Rob
Mathew Holt amen to that. Deane and Rob where my after school carers. They created Cyber MacGyver 25 years ago 👍
Flat tire by 6c vvc bn but 5th j Cole is bbto to hh
So goddamn refreshing compared to today!
Yeah, none of that fellowkids vibe or talking down to kids
Back in the time they knew how to deliver knowledge in a simple, pleasant and efficient manner.
Right to the point, as I love.
OMG! I saw this episode in the 90's and tried it.
Etched my initials into dad's best chisel. I still have it !
Thanks so much for the flashback 👍👏😀
My pleasure. I still have the chisels that i did this segment with and the name is still quite clear - Rob
I really want to try this now!
lol you have stolen and marked it as yours ?
How much copper sulfate to mix with 2 quarts of water???
samir pasic way too much water. Just a few drops!! And then as much CuSO4 as will dissolve.
My father grew up with this show and tells us stories about all of the wonderful things you made. Many years later i have discovered it for myself on youtube. Thank you for this absolutely amazing show, Well done.
Very kind of you and thanks. Lots more at ua-cam.com/users/curiosityshow - subscribe if you haven't yet - Rob
I'm an American coming to this show for the first time and I already love it. What a great mix of gentle, quiet amiability and practicality! I would have loved to have had this show when I was a kid.
Many thanks - Rob
Any needing to know - as mentioned Copper Sulphate can be found in garden/hardware stores but usually under some brand name. It is used as a Fungicide to prevent Black Spot on roses, so if the store doesn't know it by active ingredient, use that description to find it. Although the one I use comes in a powder, rather than crystals and is more opaque in liquid rather than transparent and will settle after some time.
Thank you.
It might be because it has impurities. You can try crystallising pure Copper sulphate out of it
just saying, the miracle grow blue crystals are copper sulfate and you can use it! when i saw this and he pulled out the solid stuff I instantly recognized it
Might also be found in vet or feed and seed stores as it's used as a foot bath for hooved animals to help prevent/ treat hoof rot
Yes I have a ton of miracle grow and it's blue
This is a fantastic idea - thanks! I'm 45 now, and remember your show being the highlight of my day when I was a kid. I've been an engineer for the last 23 years, so you probably had an influence!
Many thanks, kind of you - Rob
He forgot to mention that copper sulfate is nearly impossible to get out of clothing and it’s a skin irritant. If you get it on your skin in a lab, standard procedure states you wash the area under water for 15 minutes before continuing work.
If you get it on your clothing or skin in this situation though, you gotta be pretty clumsy
I've used copper sulfate for years to inhibit algae growth in my pond. It stings in cuts, for sure, but I've never had it stain my clothes. My standard procedure for skin exposure outside of the lab has always been a vigorous 1 second swirl in pond water, followed by wiping my hand on my trousers (assuming it was my hand that was CuSO4'd, of course).
@@Berqist do you use an aqueous solution or the solid form? The solid form doesn’t stain, the aqueous form does. I can speak from experience as this happened to me just 2 weeks ago, as coincidence would have it, in a lab at university. My arm was itchy all day despite running it under the tap for 15 minutes and my clothing had to be put under hot water for a continuous 8 hours to get the stains out. It was only a .1M solution too. I made this comment only because the Copper Sulfate he uses in the video is in aqueous form.
@@ryanpohl2709 lmao. Psychosomatic for sure.
Nocebo effect, or scrubbing your skin with toxic detergent in a panic caused irritation. Who would have thought.
@@goodbye8995 wasn’t even scrubbing, just held it under water. My arms were red most of the day though.
@@ryanpohl2709 Sounds like you had an allergic reaction. Copper Sulfate really ain't that bad.
“if you’re imprisoned here like me” oh rob what are they doing to you...
I bought a cheap ($ 2) motorized engraver to do the job, but it is very difficult to control the writing because of vibration. Yours is a better, and easiest solution.
Thanks. The chisels that i used for this segment 40 years ago still show the names quite cearly, so it does last - Rob
Yes, it relies on a simple solution (chemist joke). Thanks Curiosity Show for fostering my interest in science all those years ago.
@@ccox7198 His name etched on his butt is still legible.
@@antechinus23 thanks for curiosity stream for sponsering this video
@@CuriosityShow This is from 1980? or so
Oh mighty UA-cam algorithm, thank you for elevating this 7 year old video into our feed for reasons unknowable to us mere layman.
How have I not seen one of the UA-cam scientists do this recently? It'd be such a good video in modern quality and i know there's a few youtubers with the energy of Rob here. Absolutely amazing video.
The copper sulphate would probably eat right through the chineseium they make tools out of these days.
Yea it needs to be redone, not enough shilling and advertising in it
I don’t think this show was ever on here in the US but I would have absolutely loved this as a kid- luckily I like watching these now!
Good man - make sure to subscribe if you haven't and please spread the word - Rob
Indeed PBS should have imported this show.
One detail: He's not washing off copper sulfate, but rather iron(II) sulfate, since:
CuSO4 + Fe -> FeSO4 + Cu
that's why we see elemental copper showing up - it's a simple displacement reaction since iron is more reactive that copper (reacts with acids while copper is fairly unreactive)
He's washing off excess reactant (copper sulfate) to prevent further reaction along the tool that would "smudge" the etching. The iron sulfate won't react with the iron
@@p3ter9000 You're correct. It's mixture copper(II) and iron(II) sulfates actually as the copper is in excess and reacts only on the metal surface.
I always loved these little practical chemistry projects as a kid, im surprised I never went into chemical engineering or some such field
Redox reaction actually. Fe loses it's electrons and Cu gains them.
I didn’t understand a word of that but I’m glad you did
Rob and Deane's line, _"I've already done that"_ was the precursor to _"Here's one I prepared earlier."_
I loved this show as a kid. Didn’t realise the 2 blokes were captives though😂
I remember seeing this when it first aired, and have been quoting and suggesting this method since the 80s.
One of the best Aussie shows ever
Alternate title: how to make a detective’s life a hell of a lot easier
2:19 "or, if your imprisioned like me here..." who is holding Rob hostage, so he can make 90's lifehack videos?
I’m a simple man. I hear the world “oodles”, and you’ve instantly gained my trust.
The one kid who scratches their initials on everything for some reason will be UNSTOPPABLE with this
Rob - "If you can wield a paintbrush"
Bob - "Anyone can wield a paintbrush"
this man is so polite despite being imprisoned in a little room inside a TV
That man’s demeanour is incredibly oddly pleasant. What a nice person.
still holds up today! etched my best pocket knife this way and it's as neat as ever, even for such a small blade. thanks rob!
I love this video, it’s straight to the point and it’s fun to watch. I looked at the thumbnail of the video and saw a toothpick and was thinking that you were simply using that to etch your name into the tool. Glad I clicked, it’s interesting! I don’t even have tools or do any projects requiring tools and this video is going in my playlist. This is like ASMR but better, lol.
Many thanks. I am not sure what ASMR is over there - here it is the Australian Society for Medical Research. Lots more videos at ua-cam.com/users/curiosityshow - spread the word - Rob
@@CuriosityShow it means ass and scrotum to mouth romance. He's saying your show is better than sex
@@CuriosityShow ASMR is the name of a reaction some people have to certain auditory stimuli which makes their scalp tingle. People speaking softly and the sounds of writing are common examples, some people love Bob Ross for this reason.
Essentially, it means that you have a great voice and that your show is very relaxing to watch, which I certainly agree with.
@@corncobjohnsonreal 🤔
Rob is the best! LOVED watching you as a kid! Still enjoy now!
Many thanks. Curiosity Show was a
national science program for children featuring Dr Rob Morrison and Dr Deane
Hutton. It was made in Adelaide, South Australia and screened nationally in
Australia as well as in Europe, Asia and Australasia (14 countries) from
1972-1990. Deane and Rob intentionally used everyday items around the house
(like old cans) so that children could repeat the demonstrations with materials
they had to hand. In 1984 Curiosity Show won the Prix Jeunesse International,
the world's top award for children's TV programs. Rob and Deane are steadily
uploading segments at ua-cam.com/users/curiosityshow Why not subscribe?
Rob is the best? You don't want to find yourself out the back of a pub with a bunch of Deane bovver boys mate.
What does that even mean labidum?
No bullshit, no tryharding, just straight to the point information with a sprinkle of humor.
I miss TV like this
0:05. You haven't got an engraving tool, well that's rough. That comment made me crack up! The way he said it was perfect!
Great channel, glad it was suggested to me!!
Rob, you're wonderful. Useful videos like this is a great way for a lad to learn how to make himself useful.
My great pleasure - Rob
The school system could learn a lot from watching this show. I've been binging it since I found it. It really makes u want to learn so much more stuff. It sparked my brain
We can really see how far we have regressed after watching clips of The Curiosity Show.
Rob and Deane presented to children like they were intelligent and responsible with no hint of any PC nonsense and as a result the show is timeless.
You can't say that for shows of today.
Very kind of you, and appreciated. Lots more at ua-cam.com/users/curiosityshow - Rob
PC nOnSeNsE lol get a grip
"You can't say that for shows of today" - of course you can, you just don't watch children's shows anymore.
We just got a bunch of kitchen tools for our charity team, been feeding Hurricane Harvey emergency responers. I am going to try this on our new stuff. Thanks for the informative video!
I hope it helps. It sounds as though you need all that you can get - Rob
This is the coolest guy I've never seen or heard of before. Damn I wish I had had access to his show when I was a kid.
"well that's rough." This guy is great.
Many thanks - lots more at ua-cam.com/users/curiosityshow and subscribe if you haven't already done so - Rob
I bet those tools would be worth a small fortune to fans today.
I did an experiment long back when I took some copper sulfate solution and put it in a small iron tin,
Ended up with coper sulfate leaking out of it, and a small lump of copper powder.
I thought it was a great idea to make copper, and wondered why everyone else haven't figured it out yet...
Best channel on UA-cam. Wish I could have seen this show in the UK. I'm going to have to try this sometime, thanks for the great videos, and also for replying to people in the comments. You have a really nice community on here! :)
You could probably also use masking tape to tape off large sections, cut out designs from the tape, and then apply the copper sulfate to the unmasked portions. Could maybe make some more intricate designs that way.
Or if you have a vynil cutter, which are typically MUCH cheaper than laser cutters
I feel like a little kid watching a educational kid's show on a saturday morning in the 90's again. Thanks for the video Rob and the rest of the team. I am hooked!
Our pleasure - Rob
"Engravings, give you no tactical advance whatsoever"
- Ocelot, Revolver
2:20 “if you’re in prison, like me”
Nathan Ast imprisoned
Lol!
"Have present"
still means the same thing
Well, you don't want the other inmates stealing your shanks, do you?
He means he cant leave to go to a sink. "Imprisoned" to the set.
For larger surfaces you could also template a design in adhesive vinyl before spraying on the paint and removing the vinyl before it dries. Great for swords with intricate designs and the like.
Just etch it with the vinyl as the "stencil" instead of going through the hassle of painting it and removing the vinyl to use the paint as the "stencil". Whatever isn't covered in the vinyl is going to be etched.
Idk why this old videos are relaxing
This show is the best recommend on UA-cam.
I will try it on some dog tags. Maybe I will leave the copper reaction as a plus. Thanks for the technique!
I don't think dog tags are steel - Rob
No idea why you'd want to do that. your tags are already personalized and unique to you.
Wow, been a machinist for years and never knew this!
Messed up the instructions, engraved myself. At least I won't get lost.
This is one of the best things i ever learnt on you tube
There needs to be shows like this on tv nowdays
Thanks, subscribe at ua-cam.com/users/curiosityshow for loits more if you haven't already - Rob
This is a great, to the point video with no babbling! However, I would put the etching on the non working reverse side as you wouldn't want to ruin the edge of the etching when stoning your chisel.
Fair enough - it was easier to show to camera like this -Rob
love to see the intaglio influence on this very practical technique
_”Cop a sulphate name on that”_ … I shall remember that, cheers rob.
THIS IS AWESOME ESPECIALLY SINCE WE CAN USE A CRICUT TO MAKE OUR OWN LETTERS NOW 👍🏻
Could you put this solution into a refillable pen such as a Rapidograph? That would be really cool for precise writing.
Until you wake up one day and realize you're me and have been sucking on the tip of the pen
Still rate the idea tho, would buy three
Also, humor is subtle and well delivered
Clear and straight to the point. This will never age
On a side not, I miss that generation of Australian accents. My grandpa sounded like that. Seemed to have died out in the late 70s/early 80s.
I couldn't tell if it was an old kiwi or old australian, seems like the neighbouring grandfathers might have sounded quite similar back in the day :O
@@okeyhehe1728 The difference in the accents is always most obvious in the vowels. We pronounce them completely differently, the rest is admittedly very similar.
It's mildly poisonous, but its so safe...
Unless you're a fish, then 1 drop will kill you...
forever! It is very poisonous to aquatic life .
soon we gonna see the copper sulfate challenge xD kids fucking stupid these days xD
Bart Layman well we ain’t fish are we
Alucard accepts the challenge
@Never Gonnatell pretty sure it's poisonous whether or not you eat it.
I don’t even own any tools, I don’t know why I clicked this but I couldn’t stop watching.
That "well that's rough" at 6 seconds in had all of the sincerity of a politician haha.
will this work in all kind of tool steel like chrome- vanadium, Chrome-mohibdinum etc? If the tool have a coating of chromium (like most of the wrenches) will this method will work?
Sadly, no. It needs iron or steel that would rust so that the copper can replace the iron - Rob
Why did it take me so long to find out about this video? :D
Many thanks. If you haven't already, why not subscribe at ua-cam.com/users/curiosity for hundreds more segments - Rob
Very cool I'm in my 50s and just learned this! Thanks
One thing I have discovered, is that thieves don't mind a toolbox full of tools with other peoples names on them.
They must have had honest thieves in Aussieland, back then.
Awesome, iron shall henceforth be known as "the stuff".
For us who grow up before cable TV we only had a few channels. Shows like this were popular and it as easy to find when we had only 1 or maybe 3 channels to choose. We also had newspapers and magazines that had lots of knowledge. Today there is too much of everything and everything has to have lots of special effects. In short, it seems people are getting less intelligent and it make me REALLY miss the old days.
Thanks. Curiosity Show was a
national science program for children featuring Dr Rob Morrison and Dr Deane
Hutton. It was made in Adelaide, South Australia and screened nationally in
Australia as well as in Europe, Asia and Australasia (14 countries) from
1972-1990. Deane and Rob intentionally used everyday items around the house
(like old cans) so that children could repeat the demonstrations with materials
they had to hand. In 1984 Curiosity Show won the Prix Jeunesse International,
the world's top award for children's TV programs. Rob and Deane are steadily
uploading segments at ua-cam.com/users/curiosityshow Why not subscribe?
Yeah, I wish we were more limited in what we could watch and read about. Being able to find anything they want is making people stupid. Take what you're given and learn more than you ever could otherwise.
Without a doubt the most informative & beautiful thing my eyes will see today. Now I must go find my turtle-neck.
Good tip saw this on tools of the older dudes in the shop and thought it was made with an soldering iron. I have to say I like this show it’s quite relaxing and interesting no such thing as fast cuts every second.
he said he was etching onto IRON tools. Does that mean this process would not work on stainless steel tools?
No, it doesn't. They need to be something like mild or hardened steel or iron - Rob
For stainless steel you can use salt water and etch by electrolysis. Plenty of videos here.
I don’t own tools nor do I want to etch my name into them but I’ll be dammed if I didn’t enjoy this video
Why do I keep thinking Mulligan and O'Hare? Type them in to UA-cam , trust me, it is hilarious. Vic and Bob I love you.
Great vid for people without tools to watch in 3 in the morning
Hi Rob!
Will the copper sulphate react with chromium protected tools?
No, I'm afraid not - Rob
That's unfortunate. I've used the paint marker method to highlight the embossed writing. Thanks!
It should in theory. Chromium is well above copper in the metal reactivity series so it should displace copper in solution. Chromium metals reacts with both dilute hydrochloric acid (forming chromium(II) chloride) and conc. hydrochloric (forming chromium(III) chloride). However, chromium tends to build passivation layer when in contact with concentrated and/or oxidizing acids. I think you might have success with copper(II) chloride solution - which can get more concentrated and is more corrosive than the sulfate. Safety gear is a must!
Well that's rough...
This is my favorite segment of this show.
"Hey it's not your does it have your name on it?"
"No but does it have your name on it?"
"YES look here..."
& you've got about an inch of usable steel to sharpen away until the edge is compromised by the non-flat back of the chisel, with a blunt bit where the letters are. Do it on the spine, front side.
No one uses up that much of their chisels. And if they do, they're clearly using them for rough work and a slight blemish on the edge won't matter none.
Tonis Piip I’ve got several chisels I use for carving sharpened down to about 2” from the bolster. They are old, and the steel is good. And it does make a difference to a super sharp edge, as does any corrosion. . Stick to commenting on what you know about.
If you're not using up every last bit of your chisel, you're not doing it right.
The paint isn't even touch-dry at the point that you etch it, so much of that remaining paint will just come off with a bit of mineral turpentine and elbow grease.
Please don't take this offensively - - this VID appears to be vintage 70's. Don't get me wrong, it was VERY well done, learned lots & quite enjoyable! Cheers from Aurora, CO. U.S.A.
Why would that be offensive? these segments were from Curiosity Show, which was on air from 1972 to 1990, so you are spot on with your assessment - keep watching, as we are steadily uploading segments from those 18 years of broadcasts; Rob
+CuriosityShow - - I didn't want to sound like I was condemning the video for not being a little more current. That's what is nice about the science, it still holds value today. Thank you so much for your kind response - - I'll look up your other VID's as well.
Go to ua-cam.com/users/curiosityshow for the whole collection. More each week - why not subscribe? - Rob
I really think it is a generational thing, some people have grown up in a society that tells you that you have to be in fear of offending another at any moment. That you are you a horrible person if you offend someone even though you may not have intended to, therefore it puts you on the defensive constantly because you never know how or why you have caused offense especially with all the victims this society creates. Being a victim is currency now days.
I remember watching you guys in black and white on my Grans old AWA set. Great memories, you guys really helped create in me a need for knowledge of how things work. This show fascinated me and my cousins.
Great to see you are still kicking about and thanks for all these nostalgic uploads.
Thanks to you both.
cheers for that one UA-cam recommendations
Bloody hell the Curiosity Show, what a blast from the past....👍
Can you use on stainless steel?
No, a different chemistry. The nickel in stainless steel will prevent the reaction and therefore a visible mark left by the copper sulphate - Rob
I have engraved tools but it doesn't really help against losing them! Do i need special engravings? The ones that don't get lost?
Yeah, mate, just write "STAY!" on it.
Binding spell, thieves curse.
Wow, this is amazing. The quality of the information presented and his voice is so soothing.
Every woodworker died when you etched that face of the chisel.
What name a liquid for etching pewter/tin?
gading Jp It depends a bit on what kind of pewter. Old Pewter is largely lead, but that is toxic, so modern pewter is mostly tin. Sulphuric acid should attack both, but it is dangerous. You could try this copper sulphate, which is safe, but I don't think it would leave a visible bit of writing the way it does on iron and steel. - Rob
If you look at the electrochemical series, Fe3+ wants to grab electrons more than does the Cu2+ in copper sulphate. Ag+ is even more hungry for electrons (even stronger oxidiser). So you could try ferric chloride or silver nitrate, however these are more toxic. Ferric chloride is good at etching copper.
Hope he has a loicense for that pen knoife
2:20 "if you're imprisoned like me here"
when this man has been imprisoned in the studio to consistently give you great advice D:
Can we appreciate how neatly his handwriting was
Fat?!?!? What have you been up to?
Maybe he was juggling his chisels after eating fried chicken. Happens to me all the time.
“Boss. That cargo you extracted, you guessed it, metallic archea.”
What a fantastic show! I never got to experience this as a child. Thank you for posting it to UA-cam !
“or if you’re imprisoned like me here”
truly a sign. we must help him.
Great foresight from him. Australia really has become a prison colony again
Steel tool, perfectly clean, painted and scratched above.
Etching solution is water and ordinary salt, rather than copper sulfate.
Copper sulfate is fine, but it has a built-in limit to how deeply it can etch and doesn't work with all metals.
Steel is connected to + of 9 volt radio battery.
Metal collar of small paint brush is connected to - of same battery, using salt water as 'paint'.
'Painting' salt solution with the charged brush strips steel selectively thru the paint.
The longer one paints, the more steel is removed.
Works on any common metal and most of the Nobles.
This is Rob Boss, the Bob Ross of tools.
I wish I could write that neatly on metal.
Don't know how I got recommended this but this is awesome.