It's not diamagnetism at work here. It's the conductivity of silver and gold that creates Eddy currents from a moving magnet that's responsible for the drag force.
yup its the electric field generated in change of magnetic field that causes a reverse magnetic field to slow it down. its not too different why there is resistance in a copper coil magnet generator
Certainly an interesting experiment to see. I did notice that the paramagnetic effect of the Tungsten round was pushing it away from the magnets to the side. I'm not sure there is a clear enough difference to use it as a reliable test, especially considering the value of an ounce of gold. The counterfeiters use Tungsten as it has a similar specific gravity to gold, if they used copper like some of the comments suggest then the coin or bar would have to be twice as thick or larger in diameter to weigh the same as a genuine gold piece, which is exactly what you were pointing out with the fake Perth bar! I'm not sure how we can get people to understand this concept but hey ho, at least we try.
Hi Sal, try hanging a magnet just over the coin or bar and let it swing like a pendulum. It should slow down dramatically as it passes over the coin. This way nothing needs to contact the coin's surface.
It is not diamagnetic properties. It's because the magnets causes electric current induction in the coin. The less electric resistance a material has the more sliding resistance it will have. You can compare it to turning a dynamo. If you short it it's much harder to turn.
Yes and when it’s about coins particularly gold should be mixed with few amounts of harder metal “ mostly a combination of different metals” that’s is an ancient method on how to make golden coins to last for generations and not to vanish within ten years if it’s pure gold ! Thank you for sharing your video!
+SalivateMetal Sal is that true? Do you want to sell your staff? Maybe I'm interested in :D I'm looking for nice lady, fit blonde up to 25y. o. , 5'8" blue eyes, long legs, small feet :D tray could be optional :D haha
I believe you said that was a “fake” Gold Pert Mint bar...butit still seemed to show the diamagnetic properties of the real Gold Maple Leaf Coin. If this is true, then this would not be a good test to determine real OR fake Gold.
I live not to far from the Perth Mint (South Western Australia) I really can't see them producing fake gold seeing as though our country has 2 major Goldfields, but I guess we learn something new everyday!
It doesn't have anything to do with paramagnetism or diamagnetism. The rate of slowing down of a coin/magnet depends on the resistance of the metal that the coin is made out of. Changing magnetic field induces eddy currents in the coin that counteract the field change. This is why the coins slow down. The lower the resistance of metal the greater the effect. A coin has to move in a magnetic field for this to happen. Diamagnetic and paramagnetic interacts with a stationary magnetic field. Diamagnetic is being slightly repelled by magnet, paramagnetic is slightly attracted. For gold, silver or tungsten the interaction is so small that you can only measure it with a sensitive sensor.
I'm still trying to get caught up on everyone's videos. My daughter has been sick with the flu for a week and I had to have a minor surgery this past Monday so I'm really behind. Always enjoy your videos bud!
I think you would love it holding it in your hand. Stay tuned. I plan on doing a close up video on this coin. Thanks so much for watching and i hope you can get one soon.
Thanks SalivatingMetals. I look forward to the video review. I am currently deciding what gold coins would be best for me. I am thinking of getting in on the 1/4 ounce coins. Figuring some is better than none.
I have a copper round & the magnet slides at the same speed as 90% dollars or silver rounds. If im not mistaken even a clad quarter has the same effect with the magnet , that confused me?!?!?
Actually if it's thick enough to get to the gold weight, it may end up slower than thin silver one. Not sure. But even silver (31.1 grams) and copper (28.3 grams) side to side is quite hard to tell the difference for me. It seems less on magnet feel than on paper.
+Cloxxki You would need a copper coin that is twice as thick with the same diameter to be the same weight as a gold coin and about 17% thicker for a silver coin. That's why fake gold coins often have tungsten in them, since it almost has the same density as gold. It's always best (if you are unsure about a coin or bar) to weight it, measure it and use the slide test (especially with silver). The test is not as clear cut with gold.
For a natural element that is awesome.. But would these properties hold or slide faster with a deeper current oxygen to blood or pulse to air or trapped air pull force..I'm asking not to be funny but can you relate with what material you have difference in temp as well.
I do not understant why diamagnetism has anything to do to slow down the sliding? The slide speed is determined by the Ohmic resistivity of the objects. The lower the resistivity, the stronger the interaction with B-filed, the slower the sliding. (Moving B-field -> Induced currents -> Interaction of currents with B-filed). Silver has the smallest resistance of all metals, so it is slowest. Tungsten has higher resistance than that of both, gold and silver. Gold has higher resistivity than Silver. Try Bismuth, it has high resistivity compared to all above, but also factor of 10 higher diamagnetism. I predict it will fall fast due to hight resistivity, otherwise it should be the slowest, right?
Hi sal. I just bought an eagle and it slides very fast. It passes all the other test tho. I bought it from my LCS. Looks good, weighs out, but it slides really fast. My maples slide like yours did. Should I be worried? Or is the fact that they have other metals in there changing things?
SalivateMetal it's my only eagle. The weight is right and the ping test is right. The strike looks solid under the scope. It's just that the slide doesn't work. But I have been reading a lot of people saying because it's not 9999 eagles don't have resistance on the magnet.
Hmmm, interesting! I like the slide, but I just don't fully trust the magnet test. A modern day quarter etc... acts the same way as a pure silver coin due to the copper. The fake must be copper, or mostly copper because it slid slowly as if it were silver. I want a verifier so bad! Lol. 😊
Very true. There are slight differences. Silver is more diamagnetc, but with quarters, you can see the difference. But, yeah, the verifier is cool. Thanks my friend.
the gold is abit difficult to see at first but recording each slide and then comapring the actual time helps. i normally slide every coin 3 times but with silver i only need one now. so far no fakes but 99% of stuff i buy from trusted sellers or dealers but still very useful the cct slide alot easier than a magnet and they look so great. thx for sharing i really would like a verifier and one day i will get one..
I'll admit, I have not tried this with a 1oz coin but I have tried this method on 10oz bars and the magnets reacted the same way on pure copper, as they did on silver.
+Joe Silver Based on my experiments, the magnet moves slightly slower on silver than on copper. Maybe I could measure the transit times and figure out a percentage difference. There's enough of a difference to be clearly noticeable. Actually I'd really like to try it on a platinum round, but I don't have one.
very very interesting stuff my friend. I love those slides so well done. thank you for sharing this with us Sal. your the man!!!
Thanks so much Shiny. I really enjoy my slide too!
It's not diamagnetism at work here. It's the conductivity of silver and gold that creates Eddy currents from a moving magnet that's responsible for the drag force.
That's right.
yup its the electric field generated in change of magnetic field that causes a reverse magnetic field to slow it down. its not too different why there is resistance in a copper coil magnet generator
The intro is so weird
Awesome bud! I love my CCT slide. Great lesson today. And the key word is control!!👍🏼🍺🥓
Thank you sir. Yes, control is key.
The only issue I can see is that if some adds enough copper to a fake coin then it would still have the same effect.
Great presentation and info! One of these days I'm going to break down and buy one of those CCT slides.
It certainly has come in handy. Thank you so much Lanie!
This is so cool ! what a great pc. of knowledge my friend. Thanks from all !
Thank you so much Dean!
Been playing with the CCT slide for the past 2 months since we received. Now you gave us something else to try...lol Good stuff Sal!:)
Thank you so much sir! :)
This was actually a huge help! Only video I could find someone trying it!
Thank you. Glad it helped
Well this is very good information to know that the magnet test not only works for silver but it works for gold as well. Thanks for sharing.
Thank you sir. Thought it would make a good experiment. Thanks so much for taking the time to watch.
Gold never reacts to any kind of magnet but it does to electricity...
A longer slide where you could time the slide for different metals would be useful.
Great video and info . Thanks for sharing
Thank you so much!!
Very nice! I don't have a slide but clearly a slide is ONE of the tools helpful in detecting fakes.
That's right. It's one of several that could be useful.
Certainly an interesting experiment to see. I did notice that the paramagnetic effect of the Tungsten round was pushing it away from the magnets to the side.
I'm not sure there is a clear enough difference to use it as a reliable test, especially considering the value of an ounce of gold.
The counterfeiters use Tungsten as it has a similar specific gravity to gold, if they used copper like some of the comments suggest then the coin or bar would have to be twice as thick or larger in diameter to weigh the same as a genuine gold piece, which is exactly what you were pointing out with the fake Perth bar! I'm not sure how we can get people to understand this concept but hey ho, at least we try.
Well said CCT! It got a lot of dislikes, but I found the experiment fascinating and a good tool if the dimensions & weight were similar.
As you and I both know, the dislikes are totally irrelevant to anything whatsoever, you still got 800 views in just one day! Now that IS relevant.
Checking out some of your older videos. Cool
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I'm now subscribed. I like metal, I like silver. This is more my speed. Good video mate
I am replying to your comment verbally on a live stream and shouting you out!
Thank you so much for sharing. Bought some gold and didn't know that it had a small reaction with neodymium magnets.
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Great test. Thank you showing
Thank you for checking it out sir.
That open is so nice, not sure why you cut it from newer videos
Hi Sal, try hanging a magnet just over the coin or bar and let it swing like a pendulum. It should slow down dramatically as it passes over the coin. This way nothing needs to contact the coin's surface.
That's a good idea!
Very cool information, I wondered if gold would be effected by the magnets.
Thanks Walt!!
He sounds like pennywise from it.
My partner and I thought a relation of Steve-O maybe?
It is not diamagnetic properties. It's because the magnets causes electric current induction in the coin. The less electric resistance a material has the more sliding resistance it will have. You can compare it to turning a dynamo. If you short it it's much harder to turn.
Yes and when it’s about coins particularly gold should be mixed with few amounts of harder metal “ mostly a combination of different metals” that’s is an ancient method on how to make golden coins to last for generations and not to vanish within ten years if it’s pure gold ! Thank you for sharing your video!
1:19 Mister, Your Gold Eagel looks like Canadian Maple Leaf :)
Good Tips it's a rare silver plated gold eagle.
Right. And that tungsten round probably has a solid gold core.
Yeah, mispoke. Brain fart there.
Good Tips Canadian maple leaf ,he tray to sell his staff
+SalivateMetal Sal is that true? Do you want to sell your staff? Maybe I'm interested in :D I'm looking for nice lady, fit blonde up to 25y. o. , 5'8" blue eyes, long legs, small feet :D tray could be optional :D haha
I believe you said that was a “fake” Gold Pert Mint bar...butit still seemed to show the diamagnetic properties of the real Gold Maple Leaf Coin. If this is true, then this would not be a good test to determine real OR fake Gold.
The best fakes of gold are made of tungsten which has much different diamagnetic properties. I didn't have one of a similar size to compare.
I live not to far from the Perth Mint (South Western Australia)
I really can't see them producing fake gold seeing as though our country has 2 major Goldfields, but I guess we learn something new everyday!
@@staceyatkins9544
🛫
🙄
@@staceyatkins9544 are you daft? OF COURSE THE COMPANY WOULD NOT PRODUCE FAKE GOLD BARS. CHINA however would LOVE to.
Nice I learned something new good information
Thank you :)
Very nice. Very interesting indeed.
Thank you
It doesn't have anything to do with paramagnetism or diamagnetism. The rate of slowing down of a coin/magnet depends on the resistance of the metal that the coin is made out of. Changing magnetic field induces eddy currents in the coin that counteract the field change. This is why the coins slow down. The lower the resistance of metal the greater the effect. A coin has to move in a magnetic field for this to happen. Diamagnetic and paramagnetic interacts with a stationary magnetic field. Diamagnetic is being slightly repelled by magnet, paramagnetic is slightly attracted. For gold, silver or tungsten the interaction is so small that you can only measure it with a sensitive sensor.
with all that gold maybe sell one and get those choppers filed
I live in Perth where that gold is from.
I never knew that about gold. Thanks for the demonstration.
Thanks so much Silver Bear.
Hi Sal, That's risky business. Know your dealer! Thanks, Donald
Yes, very true. Thanks Donald!
Great video .
Those are cool. I need to get one of those.
It really is a fine crafted piece and the angle is perfect for sliding.
Thanks for sharing Sal
Thanks so much B Davis!
I very much appreciate your viewership as always!
I'm still trying to get caught up on everyone's videos. My daughter has been sick with the flu for a week and I had to have a minor surgery this past Monday so I'm really behind. Always enjoy your videos bud!
I would test my Gold but my filling is attached.
lol I hear ya! lol
allways teaching us something new 😀
Thank you sir.
I wanna get one of these and slide my retainer down it to see what happens
That would be awesome!!
Golden Arms Do it!
Boy does that gold maple look beautiful! I think I need to start getting my hands on some gold.
I think you would love it holding it in your hand. Stay tuned. I plan on doing a close up video on this coin. Thanks so much for watching and i hope you can get one soon.
Thanks SalivatingMetals.
I look forward to the video review. I am currently deciding what gold coins would be best for me. I am thinking of getting in on the 1/4 ounce coins. Figuring some is better than none.
I have a copper round & the magnet slides at the same speed as 90% dollars or silver rounds. If im not mistaken even a clad quarter has the same effect with the magnet , that confused me?!?!?
They have to be pitched just right I think. Get the CCT slide and you can time the fall.
Ahhhhhh. I bet that's it. Thanks a bunch! 😉
Throw back video!!! Whatsup Sal
I am responding to your comment verbally on a live stream at this very moment!
Hello. Where you buy tungsten disk 1oz in this size ? I would like to have one for testing.
Try Ebay
Where can I get one of those small neodymium button magnets?
Michaels or any craft shop will have them
If the thick gold bar is copper, it will see the magnet slide down quite slowly, right?
+Cloxxki Yes, but not as slow as silver.
Yes, that is why you always check weight AND dimensions. If they are wrong, then the coin or bar is wrong, simple.
Actually if it's thick enough to get to the gold weight, it may end up slower than thin silver one. Not sure. But even silver (31.1 grams) and copper (28.3 grams) side to side is quite hard to tell the difference for me. It seems less on magnet feel than on paper.
+Cloxxki You would need a copper coin that is twice as thick with the same diameter to be the same weight as a gold coin and about 17% thicker for a silver coin. That's why fake gold coins often have tungsten in them, since it almost has the same density as gold.
It's always best (if you are unsure about a coin or bar) to weight it, measure it and use the slide test (especially with silver). The test is not as clear cut with gold.
I am responding to your comment verbally on a live stream at this very moment!
For a natural element that is awesome.. But would these properties hold or slide faster with a deeper current oxygen to blood or pulse to air or trapped air pull force..I'm asking not to be funny but can you relate with what material you have difference in temp as well.
I'm sure there are other factors that can have an affect on it's diamagnetic properties. It's an scientific test that can be done with little control
I do not understant why diamagnetism has anything to do to slow down the sliding? The slide speed is determined by the Ohmic resistivity of the objects. The lower the resistivity, the stronger the interaction with B-filed, the slower the sliding. (Moving B-field -> Induced currents -> Interaction of currents with B-filed). Silver has the smallest resistance of all metals, so it is slowest. Tungsten has higher resistance than that of both, gold and silver. Gold has higher resistivity than Silver. Try Bismuth, it has high resistivity compared to all above, but also factor of 10 higher diamagnetism. I predict it will fall fast due to hight resistivity, otherwise it should be the slowest, right?
I am replying to your comment verbally on a live stream and shouting you out!
Hi sal. I just bought an eagle and it slides very fast. It passes all the other test tho. I bought it from my LCS. Looks good, weighs out, but it slides really fast. My maples slide like yours did. Should I be worried? Or is the fact that they have other metals in there changing things?
Check the thickness on it. If it's thicker than a usual eagle, that's a sign. Also compare the slide with a genuine eagle.
SalivateMetal it's my only eagle. The weight is right and the ping test is right. The strike looks solid under the scope. It's just that the slide doesn't work. But I have been reading a lot of people saying because it's not 9999 eagles don't have resistance on the magnet.
I know my maples show some resistance although not as much as silver, there is some.
Can you try one of yours for me please?
I tried it on my 1/10th ounce eagle and same thing slides right off with no residence
Ok, so what happens if we have a fake gold bar with tungsten core and let the magnet slide down ? What will be the result then ?
It depends on how thick the gold covering is. The ONLY way to truly tell is to compare the slide result with a genuine bar.
I´ll try it out.
Thanks for your valuable lessons. Perhaps they each taste different!?
Perhaps so!
Hi, where can we buy this magnetic slide? Thanks
Cybercurtain twitcher makes them.you can contact him on how to obtain one
that intro tho
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Salv is seeing eagles on Queen Victoria's face!
Yeah, misspoke there.lol
Diamagnetic means repulsion, it's induced magnetic field, not diamagnetic.
It's the repulsion that causes the slow slide.
The fake gold bar seemed to have diamagnetic properties.
Yes, It has copper in it.
2:13 hello shiny! i like you 🤑🤑🤑
🤤🤤🤤
Hmmm, interesting! I like the slide, but I just don't fully trust the magnet test. A modern day quarter etc... acts the same way as a pure silver coin due to the copper. The fake must be copper, or mostly copper because it slid slowly as if it were silver. I want a verifier so bad! Lol. 😊
Very true. There are slight differences. Silver is more diamagnetc, but with quarters, you can see the difference. But, yeah, the verifier is cool. Thanks my friend.
the gold is abit difficult to see at first but recording each slide and then comapring the actual time helps. i normally slide every coin 3 times but with silver i only need one now. so far no fakes but 99% of stuff i buy from trusted sellers or dealers but still very useful the cct slide alot easier than a magnet and they look so great. thx for sharing i really would like a verifier and one day i will get one..
Thank you sir. Yes, the slide is a great non destructive way to test if you don't have a verifier.
Gold is diamagnetic while tungsten is paramagnetic.
I'm wondering if there is a simple setup to test that ...
Good question. Not sure
🤙
Where'd you get that fake gold bar?
Alibaba. Did a video about it about a week ago.
Those Chinese counterfeit everything.
Don't try a copper round or bar on that contraption, you'll be disappointing. It will act exactly like silver.
Actually, it won't. See my video Can you trust the magnet test? to find out why
I'll admit, I have not tried this with a 1oz coin but I have tried this method on 10oz bars and the magnets reacted the same way on pure copper, as they did on silver.
+Joe Silver Based on my experiments, the magnet moves slightly slower on silver than on copper. Maybe I could measure the transit times and figure out a percentage difference. There's enough of a difference to be clearly noticeable. Actually I'd really like to try it on a platinum round, but I don't have one.
I have a fake silver eagle and it slid just like being a silver coin, it really fooled me!!! so the magnet diamagnetic test is not foolproof!!
copper fakes will pass this test
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Gross !
2nd
I am responding to your comment verbally on a live stream at this very moment!
1st
I am responding to your comment verbally on a live stream at this very moment!