Not even my largest magnet...
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- Опубликовано: 7 апр 2010
- This video featured my largest neodymium magnet back in 2010 which also happens to be one of the largest in the world today. I hadn't seen neodymium magnets larger than 6 inches for sale (I had heard about some that were 8 inches in one dimension). Now, www.magnetportal.de has a D200 mm x H50 mm for sale. Check my video unboxing it here: • Unboxing a MONSTER | E...
Music credit:
Royalty-free music from RickVanMan: Music4YourVids.co.uk
Tracks used:
Lonely Piano1
Film - Atmosphere
FAQ:
A lot of people ask what the magnet costs. The normal price for this magnet used to be €349 which was around $470 (February 2011) but neodymium has exploded in price since:
[Update August 2011: The price is now 799€. I guess neodymium is getting very expensive very fast!]
[Update January 2013: It's getting cheaper again: € 599 or $ 785]
[Update March 2013: It's getting cheaper still: € 530 or $ 700]
Another commonly asked question is: How do they ship this magnet? I show you this in another of my videos: • How is a 6" neodymium ...
The text on the magnet is german: 'Die stärksten magnete der Welt' which translates to 'The strongest magnets in the world'.
This was my first HD-video on RUclips. It was shot with a Canon HF10 in 1920x1080i AVCHD and edited on a Dell Studio XPS with Pinnacle Studio HD Ultimate Collection (version 14).
The recorded sound is not so good in this video because of a lot of background noise. This is not the video camera's fault. I had to shoot this video with the camera far away from the magnet and then zoom in. This is to avoid any damage to the camera from the strong magnetic field, flying shrapnel etc. In more recent HD-videos I have recorded in 1080p, since RUclipss compressor hates interlaced formats and adds the digital artifacts you see in this video. 
Наука
-"There has been a disturbance in the force.... Have you felt it?"
-"Yeah.. It's that guy playing with the magnets again..."
Yeah, that's my dick.
iliek a disturbance, not a flea
I ordered one months ago but it must have gotten "stuck" in the mail.
haha! good one.
nice one
i wouldnt doubt it lol... i bet the box they come in, is the size of a refrigerator!
Where did you order it from?
Gord Baker I was just making a joke, I didn't actually order one.
Music makes it seem like someone died.
RIP plate D':
"This will not be my last video"
+Scias Like some cheesy forensic soundtrack
+Scias I recognized it from Dead Frontier.
+MePlayZGaming i did too lol
I am a plate and i find this both offensive and corrupting :/
Stefano Pewds Oh dear. Then you definitely shouldn't watch this video either: ruclips.net/video/ih-rg6VuJDc/видео.html
I'm not sure why I end up breaking plates in my videos x)
Stefano Pewds i am offensive and corrupting and i find this plate
+Jupiter the Gas Giant I am and and find i plate this offensive corrupting.
+Ty The Potato good try
@@elainehovious1150 nope, it wasn't
2:03 the magnetic field is so strong the can already starts to slow as it gets close to it. Lenz's Law at its best
This is a super heavy knife! Demonstrates it by smashing a plate
+Cal Tony lmao ikr
It was from the magnet, You're that fuckin dumb😂😂😂
and the Kill3rhound award goes to NoShit Sherlock!
Lol that was a cute answer.
it took me a while to realize, the magnet is probrably on the floor under the table.
On magnetportal'de (€530) or magnet4less'com ($669).
More details in the description under the video (click 'Show more').
Thanks for watching!
@Walkingdeadman1991 :
No problem. You should watch one of my other videos called 'Separating large neodymium magnets'.
Thanks for watching!
now thats a magnet...
I have no interest in magnets but i have watched 5 videos like this in a row,the youtube effect.
I had no interest in magnets, but now I do.
You probably find them attractive
Check the link in the description or search directly for my video 'How is a 6" neodymium magnet delievered?'.
Should answer yours questions :)
There's a link for an 'unpacking' video in the description under the video (click 'Show more') or just search for my video 'How is a 6" neodymium magnet delivered'. Feel free to ask if you have further questions.
Thanks for watching :)
Lol, I kinda want to buy one and then just put it in a bag of some sort and just walk around bricking people's phones
Till you get close to a metal pole or car and you bag goes flying towards it.
Josiah Alderden First of all obviously I'd never actually do this, secondly I wouldn't be stupid enough to walk near a massive metal object, and I'm pretty sure i'd feel the bag starting to get pulled as I approached anything metal anyway.
Tactical Turd
I would assume you aren't that stupid, it was supposed to be more of a hilarious mental scenario.
Josiah Alderden I did laugh a bit when I first read it :D
Les cartes mémoires actuelles sont immunisées contre les champs magnétiques,
et si ton sac est attiré par un poteau tu ne pourras pas le retenir, quand t'u t'en rendra compte l'aimant aura bougé de + de 10 cm et la force est environ inversement proportionnelle au carré de la distance, alors elle augmente vite!
I pray that none of your friends have piercings.
How about iron piercings
I have put a link in the description to one of my other videos where I show this.
Info on price is in the description under the video (click 'Show more').
Thanks for watching!
In reality the electromagnetic force is 1,000,000,000,000,000,000,000,000,000,000,000,000 (one trillion trillion trillion) times stronger than gravity. The magnet shown has a magnetic effect which is far smaller than this theoretical value.
Even so, it is powerful; if the Earth was instantly turned into a magnet with a similar relative strength, the iron core of the Moon would be ripped out and would accelerate towards the Earth and impact us within a few seconds, totally destroying both.
*****
"When we look at macro level, we see that gravity is stronger."
Depends what you mean by 'macro level'.
Its obvious to anyone from the above experiment that the electromagnetic force is trillions of times more powerful than gravity, since this tiny magnet exerts a force on these weights which is plainly stronger than the whole Earth.
*****
"The force of gravity can be strong enough to prevent even photons from escaping - because it is only dependent upon mass and distance "
You are talking about black holes; the main factor in operation here is density. When the density of a mass is such that it can distort space-time enough to create an event horizon, then photons cannot escape from this gravitational well because the escape velocity is higher than the speed of light.
"Natural magnetism is as weak as gravity"
Even a weak magnet is trillions of times stronger than the Earth's gravity.
*****
"In the middle of the galaxy there is a big black hole which keeps everything together, even our Sun. "
I'm sorry, but I had to laugh out loud at this one.
I am an astronomer; - should have told you that I guess; so its hard to get away with BS on space facts with me.
Sag A, the black hole at the center of our galaxy is far too small to have any such effect.
What keeps everything together (including the Sun) is the gravitational mass of the Milky Way, most of which is dark matter.
But you are right that gravity predominates on these large scales.
Justin Hlas
"...has anyone actually seen a black hole?"
Depends what you mean by 'seen'.
Of course, a black hole cannot be seen in the usual sense, because light cannot escape from it to be detected by our eyes.
However, some black holes have an accretion disk which certainly can and has been seen; jets of relativistic particles can also be emitted from the disk.
The accreting matter often comes from a companion star which eventually gets ripped apart by the black hole. Inner parts of the accretion disk lose angular momentum to the outer parts and this results in material infall.
These disks can be millions of degrees in temperature and so emit high-energy x-rays. This is often how these disks are detected in the first place; we look for sources of x-rays.
There are 3 classes, or sizes of black holes.
Justin Hlas It is impossible to "see" black whole, that would require light to bounce of the black whole and hit your eye or the telescopes lens. Since all light that hits the black whole is trapped there. We can see the absence of light when other light is passing by it. Thats how we know there is something obsorbing the light and not letting it excape, because we can't see it. So no, no one has ever actually seen a black whole!
"where have i been for 6 years" ? New suscriber
Awesome! Welcome aboard. Much more to come :)
I'm in too 😁
Well me too
didier banegas Nice! You're more than welcome :)
EloNaj Thank you - welcome to you too :)
Link in the description for how this magnet was delivered/how I store it ;)
There's a link in the description for a video where I show how it was shipped (or search for my video ' How is a 6" neodymium magnet shipped?').
lol imagine if you had a magnetic implant. You would be having a bad day
+asshair Might only hurt just a little bit
asshair stealing diamonds from a distance is pretty cool
thats pretty scary actually, magnets many times smaller than this could rip one right out of the head if accidentally placed near
Diamonds aren't magnetic...
I have buckshot in my chest. I'm actually quite scared to get my newly extracted Nd hard Drive magnet (Only got one, sadly, because the second is screwed down and I don't have a small enough hex key to get it. Tried filing away at the other side of the crew but didn't work), which I've already cracked a bit trying to bend the shielding bracket (the magnet is still extremely strong, even with a crack) anywhere near the small buckshot lodged in my arm, near the surface of my skin. Much less my computer. I mean, a magnet that small can pick up hog ring pliers (which are rather heavy) without any trouble, and a pretty large (probably about a pound) claw hammer without issue. I even picked up an entire Allen key set with that little prick. Keep in mind, this was a laptop HDD, so it isn't even as big as some that you've probably seen. tbh, being filled with metal, I don't know what I was thinking trying to remove the shield, because that thing would be completely ruthless without it.
0:28 Im a big metal fan too xD😂
I have another one I used to be a big metal fan but now i am a air conditsioner i hope i wrote that right. XD
As I wrote in the credits at the end of the video it's from music4yourvids'co'uk. As I remember I used the tracks 'Film-Atmosphere' and 'LonelyPiano1'.
Thanks for watching!
@Walkingdeadman1991 :
Thank you for your suggestion. I have a lot of ideas for videos but only limited time to realize them. And I try keep my videos high quality = time consuming.
I do have a lot of different sizes of magnets and I guess I could make a interesting video comparing the lifting force of them. It's now on my 'future ideas' list :)
Children in Africa could've eaten that plate >:(
Skittle Fiddle thats very rude and immature whether it was a joke or not, grow up. Have you not experienced how tough it is and your joking about them eating plates. Some people.
Skittle Fiddle wow
+ChickenLicken fucking lol at dude who fails at letting things go.
How do they ship something like that? I have this vision of the delivery guy wondering why every other parcel in his van is stuck to yours.
dedokta he have a seperate video on how to deliver the monster magnet
As I wrote in the credits at the end of the video it's from music4yourvids'co'uk. As I remember I used the tracks 'Film-Atmosphere' and 'LonelyPiano1'.
Price for magnetportal is in Euro ;)
Thanks for watching!
seeing that butter knife cleave through a plate using only gravity and magnetism, now that showed me that you don't fuck with these magnets.
pls make a video of you throwing knives near the magnet
Yes please
Higher grade like N52 over N45 will make the magnet stronger even though of same size. More about grades in my video 'Buyer's Guide: Grades of Magnets'. And maybe a surprising conclusion about size vs. grade in the video 'Testing my magnet collection'.
Thanks for watching :)
Luckily it is a little shielded when shipped - link for 'unpacking video' in the description or search for my video 'How is a 6" neodymium magnet delivered?' for more details.
Thanks for watching!
u wanna kill someone by "accident" buy a few of these magnets
That sounds like background music for Dead Frontier.
Mercury would very mildly be repelled by this magnet since mercury is diamagnetic. Much more about this in my video 'Exotic Metals vs. Magnet (including uranium).
Thanks for watching!
I was using the layman term 'magnetic' for something that will attract a magnet strongly. In the video it is the eddy currents stopping the alu can and not it's very weak paramagnetisme. More details in my video called 'Exotic Metals vs Magnet'. Thanks for watching and commenting.
I Wonder what one the size of a bus could do!
+Forest Gump
It would actually rip itself apart due to internal stresses :)
brainiac75 Really? A Giant bus sized Solid magnet?
+brainiac75 would it make difference if you stacked a bus sized one with these 2 inch ones and maybe use some elastic material in between each magnet
+Brainiac75 Is there a known maximum volume?
Legokingmi Jade Not really. But 6-8" seems to be the maximum that manufacturers attempt.
what if you plated yourself with magnets that were of the same charge, could you fly like magneto?
Vishal Gupta Magnets don't have a charge, they have poles.
Only once and at a cost of €670 (>$800) in broken magnets so don't expect me to do it ;)
Thanks for watching and commenting.
Most metals used for 'medical' purposes are not that magnetically active so you would probably be fine.
But then again I'm not a dentist so it could be a painful experience if they e.g. used a type of stainless steel for braces which is pulled strongly to this magnet. Caution is always advisable with this size of magnet ;)
Thanks for watching and commenting.
what if i was wearing braces ???
+TheBrokenDreams get ready for dentures if you get to close, i presume
+Ryan Schultz Get ready for a new mouth.
+TheBrokenDreams braces arent magnetic
mine are
TheBrokenDreams Are they from 1950?
Why would anyone want to buy one of these?
Eh, did you even watch the video?
+Olivier Duineveld to build a monster speaker
+Olivier Duineveld Could also build an extremely powerful wind turbine if you had a few of them to make a longer rod. Would be extremely dangerous to use magnets this large around other magnets this large tho, I've seen videos where magnets half this size and smaller basically explode on impact because of the extreme pull forces bringing them together.
for shits and giggles. Every scientist and garage experiment enthusiast needs a big ass (and also rather fragile, as Neodymium is rather brittle, at least in my experience) magnet
A big piece of steel would be very difficult to pull directly of this magnet. Luckily it is much easier to slide things sideways of the magnet. I use a wooden 'cutter' to separate large neodymium magnets (search for the video 'Separating large neodymium magnets'). I could use the same setup to remove big metal pieces from the magnet. It is very likely to scratch the magnet though...
Thanks for watching!
Music credits are at the end of the video (3:03). It's a completely free download - great for an amateur video maker like me :)
I store it far away from metal in the box is was delivered in. Watch my my video 'How is a 6" neodymium magnet delivered?' for more details.
That would be an epic copper pipe :)
My largest copper sample (5 kg bar) can be seen interact with smaller neodymium magnets in the video 'Eddy currents ad libitum'. Too small for this large magnet...
Thanks for watching!
You are right!
But in the setup shown in this video the paramagnetic effect is negligible. I show the paramagnetic effect of aluminium in a very sensitive setup in my video 'Exotic Elements vs. Magnet'.
Thanks for watching and commenting.
I have some eddy current experiments with up to 5 kg copper in my video called 'Eddy currents ad libitum' and 'How to improve eddy currents experiments'.
Not with this magnet though since I can't find a copper piece large enough to match it ;)
Thanks for watching!
Check my video 'Exotic Elements vs. Magnet | Cesium and pyrolytic carbon | Part 2/3'. I show that aluminium does have various reactions to a magnet. It is just very weak compared to the ferromagnetic iron etc.
The stopping effect shown in the above video is due to eddy currents. This happens because Al is a very good electrical conductor (more than 3 times better than iron) so eddy currents are generated in the Al. These eddy currents have their own magnetic field that opposes the magnet's.
Based on pictures from their website: The manufacturer that delivers to magnetportal measures the pull force on a machine with big massive steel cylinders on both sides of the magnet. Their machine only goes to around 550 kg before it gives an error so the 1200 kg is an extrapolation from the measurement of a smaller magnet (= a qualified guess). A 120x120x20 mm N45 magnet maxes out their machine. The shown magnet in the video has 3 times the volume :)
Yes - one magnet is enough to make a simple electric generator. You just need an external energy source to turn a coil (or the magnet) around. There should be several videos of this on RUclips already (don't trust the 'free energy' devices though - you need an external energy source for the generator).
Thanks for watching!
As I wrote in the description the cost of this magnet is constantly changing due to changes in the cost of neodymium. Current cost has fallen to €600 ($785) but magnetportal does not ship to USA.
You can find a similar sized 6 x 2 inch neo magnet on US eBay for $800 + shipping in grade N48. Nice magnet!
Oh the fun I could have with a 45 tesla magnet ;) I would really like to work there...
Thanks for watching and commenting.
No.
A fridge is made of thin sheet metal so the power to take the magnet off again wouldn't be enormous. But the magnet could easily bend the sheet metals of the fridge and scratch the surface so it would be a mess :)
Thanks for watching and commenting.
And some stainless steels are not even ferromagnetic despite the high iron content. But this big magnet will find even small amounts of iron/steel :)
Thanks for watching and commenting!
As I wrote in the video I bought it at magnetportal.de. But they don't ship to USA. There's a similar sized 6 x 2 inch magnet for sale on eBay for 799$ right now in grade N48 (so should be a little stronger!).
I was under the impression that they use electromagnets or even superconducting electromagnets. But that doesn't make them less cool :) Maybe some of the older ones use/used permanent magnets?
Thanks for watching and commenting!
@Lollocide :
These weights are quite heavy. They are not gonna randomly roll around and fly through the air unless close to the magnet. I made sure that the weights approached the center of the magnet. This way they are not gonna roll towards the magnet but only be attracted to the magnet from the direction I chose. Gravity and the magnetization of the weights themselves also play a part in stabilizing the weights. No tricks here - just carefully planned science in the extremes :o)
That would not work very well because the aluminum in the can is very thin so the eddy currents are small and faint. With large, solid pieces of aluminum it would work much better - even better with copper, which is a better conductor.
In my video 'Eddy currents ad libitum' I show how a neodymium magnet reacts with up to 5000 gram copper. That gives some serious eddy currents :) Thanks for watching and commenting.
Except from the nickel coating that can give you allergy from long term exposure (and the danger of being crushed between the magnet and whatever it decides to attract) there's no known health issues with this magnet. Permanent magnetic fields doesn't seem to affect human bodies.
Some scientists work near much, much more powerful electromagnets on a daily basis.
Thanks for watching!
The magnets do interact with the electrons in our bodies - that's how magnetism works in the first place by interaction between unpaired electrons in the shells around the nucleus but the electrons stay in orbit so nothing dramatic happens with the electrons in your body near a magnet.
The forces are unnoticeable because our bodies are mostly made of water (very weakly diamagnetic). Search for 'levitating frog' if you want to see a frog being repelled by a super strong magnet :)
It has more than enough power to lift a person in a repelling setup with other magnets - the problem is balancing the setup and preventing the magnet to turn around and attract in stead of repelling :)
Depends on where you live. eBay or Amazon are the generic sources. For Europe you could try magnetportal.de or supermagnete.de. For US/Canda magnet4less'com seems OK.
Thanks for watching!
The iron in our blood is part of large protein called hemoglobin - it is not pure iron like they sprinkle in some types of corn flakes. Pure iron is ferromagnetic but a lot of iron compounds like hemoglobin is not ferromagnetic. So there is no noticeable effect on the human body near this magnet.
This magnet is scary but for other reasons than the iron in our blood :)
Thanks for watching!
I would probably need to build a monster version of the magnet splitter I use in the video 'Separating large neodymium magnets'.
Thanks for watching!
Can you do a video separating them? If you can't it's ok
Just keep ferromagnetic metals and other magnets away from it and it is harmless ;)
Thanks for watching!
It's called eddy currents and is an effect of Lenz's law. It works visibly with metals with very high conductivity.
Very short: electricity is induced in the alu-can when it passes through a changing magnetic field over the magnet. Whenever you have electricity you also have a magnetic field so the electricity in the alu-can has it own magnetic field that reacts with the magnetic field of the magnet. This slows down the alu-can.
Yes, I often do that when combining large neodymium magnets - you may have seen some of my instructions videos - this video is anything but a safety video :)
My hands would still be crushed in a full-on accident gloves or no gloves - but small pinches could be prevented by thick gloves...
Hey thank you so much for making these awesome videos and replying to the questions I have asked. You have inspired me to buy some cool and somewhat big magnets and metals that I just can't stop buying and collecting. So thanks again and keep on doing what your doing.
Neo-magnets is quite a new invention. It was patented in 1983 by a team from General Motors, Sumitomo Special Metals and the Chinese Academy of Sciences. They developed a grade N35 material. Today much stronger N54 magnets are easily available.
Nd is more common than lead in the Earth's crust. The problem is that eg. lead can be found in quite concentrated ores and is easily separated whereas Nd is only found in low-grade ore and therefore expensive to extract (and difficult to separate). Nd has actually fallen in price recently after a big price increase in 2011 when the Chinese put restrictions on their export of it. But yes, the good mines for neodymium will quickly run out with the need for Nd in electric cars and wind mills...
Living in Europe I know next to nothing about the Australian market. Magnetportal does not ship to Australia and there are not many dealers with this size in stock.
I know magnet4less'com has one for sale and ships by sea freight world wide. But it may be a very costly and slow project. $669 for the magnet + cost of shipping by sea freight + import taxes (maybe, I don't know about this in Australia).
Thanks for watching - hope you find a solution and is careful :)
Put one at the bottom of the stairs and now my ' Slinky ' is finally working.
Thank you. It weighs around 6.6 kg (~14.5 lbs). I am uploading a video right now where I struggle to hold it in stretched arms :)
@ACafe141 :
Moving this magnet takes planning. If it gets stuck to a large metal object (like a radiator) the magnet can't be removed without destroying it... Small objects are 'easily' removed from the magnet because they don't have much metal for the magnet to apply its force on.
Actually no warning on the box as that would scare the postman (see my new video to see the box it was delivered in). Hopefully people know what they are getting into if they are willing to pay for this magnet!
It goes up and down in price following the price on neodymium (details in description). Current price has fallen to €530 ~ $700.
Nope. A laser beam is light (electromagnetic radiation) without charge so it is not deflected by a magnet.
Thanks for watching and commenting.
No. Discovery Channels Mythbusters actually tested it in real life by firing a bullet right over a huge array of neodymium magnets. They couldn't see a difference with or without magnets. If the bullet was made of iron I believe it could be curved a tiny bit, but it would probably hardly be noticeable.
Hmm, I doubt it. The Moon is believed to have a small iron core so it may be affected but magnetism doesn't work at large distances. Mars certainly wouldn't be affected. You need gravity to bend space and time to work over such large distances.
Thanks for watching!
I take care not to get this magnet too close to the camera although I have tried that the autofocus is bumped when turning the magnet even at large distance. The camera is quite far away and zoomed in on the magnet.
The weird distortions in this video was made by YT's converter that apparently doesn't like interlaced 1080i in PAL standard. I'm now filming and uploading in progressive 1080p which seems to work much better.
But you're right that this magnet could make the camera misbehave :)
In my video titled 'Some more fun with uncool things!" I show that this magnet can turn south and north upside down on a compass at a distance of 170 cm (5 feet 7 inches). Further away it still affects a compass but can't turn the needle a complete 360 degrees around. I haven't measured the max distance where it can make the needle wiggle just a little bit but it is probably well over 3 meters.
Beckham sometimes seems to defy the rules of science. Guess he was never taught about them ;)
But a laser beam will not be bend by a magnet. It's electromagnetic radiation whicht isn't affected by a magnetic field despite it's name.
You can bend alpha and beta radiation with it though because they have an electric charge (protons and electrons). Gamma radiation is not bend because that is also electromagnetic radiation like light - just with much higher energy.
Thanks for watching!
I think I used the tracks 'Lonely Piano1' and 'Atmosphere' for this video.
You could make a wheel spin by moving a magnet back and forth. But as I said: it takes energy to move the magnet back and forth. You might as well just use that energy to spin the wheel directly on the axle?
Yes, it is quite heavy: around 6,6 kg or 14.5 lbs.
You would need to move the magnet back and forth to turn a wheel with strategically placed steel plates or magnets on it. That takes energy that you might as well just use directly for the generator with higher efficiency :)
I think you're right. They have tried to shield this magnet a little in the package (as I show in my video 'How is a 6" neodymium magnet delivered') but I'm pretty sure that this would still cause some mayhem in an automated package handling system...
It's called being experienced ;)
I actually had a mishap with one of my wrist watches near a neodymium magnet. It has a titanium casing so it's not powerfully attracted to the magnet. But some of the inner workings are of steel and suddenly the analogue stop watch wouldn't reset right. Luckily I found a function for correcting the zero point manually...
Keep expensive watches away from these magnets :)
Cubes have the best length/width/depth ratio for high strength for a given mass of magnetic material so yes - you should go for a cube. But combining disc magnets will give you a bar magnet as I wrote :)
If the vehicle was crushed into a solid piece of steel so the magnet had a lot of metal close by to work on: yes - it could potentially lift the weight of a small car.
But a vehicle is typically made of thin steel sheets where most of the metal would be far away from the magnet no matter where you placed it on the vehicle - so no, it can't lift a normal car.
Yes, though I can't guarantee it is legal in all countries (I've heard that Norway has restrictions?). The lowest price I have found for this size is $500 (~€370) + shipping. But start with something smaller if you are inexperienced with neodymium magnets :)
I've got some good ideas for further experiments - just need the time to film it but summer vacation is coming up, so... have a little patience :)
You're right. It would be a nightmare to get something large stuck to this magnet. Luckily small items are not that hard to remove from the magnet since they are 'saturated' magnetically. A paper clip for example only takes 280 grams of force to be removed from this magnet (see my video 'Testing my magnet collection').
With the large magnets I'm very careful so I haven't had any serious mishaps (yet).
I haven't had any electronics close to this for safety reasons ;)
For permanent magnets you can't find anything stronger than a grade N52 neodymium magnet in that size. At max 2 inches it can't really be 'extremely strong' but it will be the strongest unless you go for an electromagnet.
I actually did get it through a parcel service. Check my video 'How is a 6" neodymium magnet delivered?'. They shield it a little in the packet.
another nice video, I have recently purchased a 3inch x 1inch N45 disc magnet and cant believe the power. I can only imagine what this thing is capable of.
Yes, this magnet should definitely be kept away from electronics. Especially away from devices with data you don't want to lose...
If it is kept 1 meter /1 yard away it shouldn't give permanent damages but I recommend even more distance just to be safe with this size.
CRT screens will get odd colors from quite a distance. I am trying to get hold of an old CRT-TV (not flatscreen) and have a little fun with this magnet and the TV in a video :)
That's true,but the risk is there and when someone asks I will not be held responsible for any vital data loss so I have to answer like I did :)
The magnets in HDD are actually also specialized: they are magnetized with 4 poles (like two magnets stuck together on their sides with opposite poles pointing upwards) and they are placed inside larger metal brackets. Therefore the magnetic field is strong very close to the magnet but much limited outside the brackets. Keep neo magnets away from HDDs!
For Europeans: watch 1:56 into the video.
US and Canada: magnet4less'com has a similar magnet (they have just lowered the price to $500 which is a very good price for this size. Magnetportal charges the equivalent of $680 - you lucky Americans :)
Oh yes. He said that he has two ½" neo magnets. That can mean a whole lot of pinching of skin when combining/separating the magnets.
People with a little practical experience with neo magnets are very likely to have tried to loose a little skin or even flesh when handling larger neo magnets...