@bouzaglo3 Watch the video to the right called "Beer Levitation - Sixty Symbols." It's basically the second part of this one, where magnetic levitation is described and demonstrated with a droplet of beer.
This video is incorrect in many things. A fridge magnet does NOT generate a magnetic field, because magnetic fields are generated ONLY by moving charges. A fridge magnet generates an amplified electromagnetic field from the aligned polar atoms...essentially the same force that keeps you from falling through objects. A magnetic field has to do with the spin quantum number of a particle and also in the end acts through EM-forces to create relative motion between two charged particles.
@katulobotomia I'm not an expert but I'm pretty sure that's not right. If you hold a fridge magnet next to a current carrying wire, the wire will be deflected. This can only be due to a magnetic field, because the wire is neutral overall so a purely electric field would not cause it to move. Magnetic fields are generated by moving charges, but there are moving charges inside a fridge magnet, when you look at the atomic level.
Magnetic field can be defined in many equivalent ways based on the effects it has on its environment. For instance, a particle having an electric charge, q, and moving in a magnetic field with a velocity, v, experiences a force, F, called the Lorentz force..
part 2
Alternatively, the magnetic field can be defined in terms of the torque it produces on a magnetic dipole. You have a good grasp on this.
Magnetic field can be defined in many equivalent ways based on the effects it has on its environment. For instance, a particle having an electric charge, q, and moving in a magnetic field with a velocity, v, experiences a force, F, called the Lorentz force. See force on a charged particle below. Alternatively, the magnetic field can be defined in terms of the torque it produces on a magnetic dipole. Thats how it is taught.
@kristijanadrian I'm not going to argue this point with you, mostly because I believe you probably know more about it than I do. but I can say that there is no sheilding on most cpus and magnets seem to have no adverse effect on the chips. cheers
yes, it affects how the camera physically works, as in components you can see magnetic fields if you put a magnet next to an old tv screen as the field will project onto the screen, but it will fuck your tv
it could potentially affect the electronics in the camera since moving a conductor through a magnetic field will induce a current. So electronics might go haywire in a strong magnetic field. Although you can protect the electronics by building them inside a Faraday cage.
Hi Richard - What do you think happens to the human body when close to such magnets? I believe water can be magentised..? - Oh what woudl happen to someone having a close look with mercury fillings... ouch! Checked out your other channel - more videos please... ;-)
Microchips are very easily effected by magnets. They contain wires of various lengths, all of which when passed through a magnetic field will have a current induced in them. Not only will this disrupt the precise charges which govern normal operation, it can also push those currents beyond safe levels and permanently damage the hardware itself. Most chips have some level of magnetic shielding for this reason.
@Phage0070 in theory you make a good point, on the other hand I've held up a rather large n45 magnet directly to the surface of ram and a cpu on a running machine with no adverse effects. and at that proximity thats a pretty extreme magnetic field.
I think that if it's strong enough, at most, you can feel a little bit weird. Not enough for your blood to suddenly pop out of your skin like in X-Men.
Cause, although you have paramagnetic elements in your body, you're almost 99% made of diamagnetic elements, that are combinated with your paramagnetc elements inside of you.
So, to do something like, ripping the iron from you're blood is totally impossible, cause if you had that stronge magnetic field on you, you would be bashed away much more early than that could happen.
lol... I posted the comment about the superconducting magnet before the video got to that section (I was pleasantly surprised). I noticed that there was a closeup camera shot of the drop of fluid in the hollow. Is that camera immune to magnetic fields, or will all cameras work... just not the actual recording device (HDD for example)?
Magnetism occupied much of my time when I was very young. I want a superconducting magnet... just for bragging rights. (I wouldn't have any actual use for one)
i wonder if those magnets cracked apart if they would still stick together in the shape they were previous to the cracking...
crazystrongtower 3 weeks ago
This has been flagged as spam show
but what is magnetic levitation? and how does it work ??
bouzaglo3 1 month ago
but what is magnetic levitation? and how does it work ??
bouzaglo3 1 month ago
@bouzaglo3 Watch the video to the right called "Beer Levitation - Sixty Symbols." It's basically the second part of this one, where magnetic levitation is described and demonstrated with a droplet of beer.
OOZ662 1 month ago 2
@bouzaglo3
Motherfuckin Miracles
PretendedDeafMute 1 month ago
@sixtysymbols
What about a video on EM and James Clerk Maxwell?
LeconsdAnalyse 5 months ago 2
Piercings in your mouth or ears or elsewhere = LOL
Khaielaash94 6 months ago
Comment removed
mikero1369 7 months ago
I was gonna say: I could've sworn one of the keys they were dangling next to the magnet had a transponder on it. That would be a bit expensive.
MultiPaulinator 7 months ago
About 6:58 I was quite afraid he was about to whip out his prince albert.
AleifrLeifrson 7 months ago
Wait! you're taping this? isn't a digital camera?
jimo1150 9 months ago 5
@jimo1150 Some digital cameras use tapes (MiniDV is an example). It's digital information stored on magnetic tape.
CritikalMind2008 7 months ago
This video is incorrect in many things. A fridge magnet does NOT generate a magnetic field, because magnetic fields are generated ONLY by moving charges. A fridge magnet generates an amplified electromagnetic field from the aligned polar atoms...essentially the same force that keeps you from falling through objects. A magnetic field has to do with the spin quantum number of a particle and also in the end acts through EM-forces to create relative motion between two charged particles.
katulobotomia 9 months ago
@katulobotomia I'm not an expert but I'm pretty sure that's not right. If you hold a fridge magnet next to a current carrying wire, the wire will be deflected. This can only be due to a magnetic field, because the wire is neutral overall so a purely electric field would not cause it to move. Magnetic fields are generated by moving charges, but there are moving charges inside a fridge magnet, when you look at the atomic level.
wowsa0 5 months ago
This has been flagged as spam show
@wowsa0
he is not correct,
part 1 of definition
Magnetic field can be defined in many equivalent ways based on the effects it has on its environment. For instance, a particle having an electric charge, q, and moving in a magnetic field with a velocity, v, experiences a force, F, called the Lorentz force..
part 2
Alternatively, the magnetic field can be defined in terms of the torque it produces on a magnetic dipole. You have a good grasp on this.
CandelaCenter 3 weeks ago
@katulobotomia
Magnetic field can be defined in many equivalent ways based on the effects it has on its environment. For instance, a particle having an electric charge, q, and moving in a magnetic field with a velocity, v, experiences a force, F, called the Lorentz force. See force on a charged particle below. Alternatively, the magnetic field can be defined in terms of the torque it produces on a magnetic dipole. Thats how it is taught.
CandelaCenter 3 weeks ago
Is that Brady at 6:55?
pauldve 1 year ago
@pauldve yeah, he films all of the videos for Nottingham: Periodic videos, Test Tube, Sixty Symbols.
MusicBent 11 months ago
I thought He had stud in his penis, and he will .... :)
micol018 1 year ago
@kristijanadrian I'm not going to argue this point with you, mostly because I believe you probably know more about it than I do. but I can say that there is no sheilding on most cpus and magnets seem to have no adverse effect on the chips. cheers
gtq838 1 year ago
Who's dat guy at 0:04?
aashish7kumar5 1 year ago
Very nice video, but it doesnt say much about magnetic fields :)
I would love to see a new version of this video which goes a little bit more into detail of magnet fields.
morto360 1 year ago
Thumbs up to whoever loves this sereis and whoever admires Brady Haran.
aashish7kumar5 1 year ago
where can I get neodymium magnets?!?
brenoakiy 1 year ago
@brenoakiy ebay
gtq838 1 year ago
I'm glad he took 8 minutes to tell me something that could have been done in 2.
membery782 2 years ago
not as super as said
MyGamerTV 2 years ago
What if the camera is digital? does magnetic effects the storage as well?
OBI0131 2 years ago 3
It only affects tapes, not cds, dvds or memory sticks or something like that.
It also affects a computer's hard drive, because it works in the same way as a floppy disk.
FrostPegasus 2 years ago
yes, it affects how the camera physically works, as in components you can see magnetic fields if you put a magnet next to an old tv screen as the field will project onto the screen, but it will fuck your tv
hughescorpell 2 years ago
it could potentially affect the electronics in the camera since moving a conductor through a magnetic field will induce a current. So electronics might go haywire in a strong magnetic field. Although you can protect the electronics by building them inside a Faraday cage.
Jokker88 2 years ago
@OBI0131 if there is a HDD or tapes in there then yes otherwise not :D
uut0 1 year ago
@OBI0131 It will erase everything, but it wont destroy it. I think.
nafativedec 1 year ago
Hi Richard - What do you think happens to the human body when close to such magnets? I believe water can be magentised..? - Oh what woudl happen to someone having a close look with mercury fillings... ouch! Checked out your other channel - more videos please... ;-)
AlexFate101 2 years ago
very cool little video - down to earth... magnetism that is ;-)
AlexFate101 2 years ago
If you're interested in finding out more about how this works, there's a link to our homepage in my profile (click on 'ppzrjah').
- Richard (the bloke in the video)
ppzrjah 2 years ago
I hate B! My IB physics exam is in 3 days and I have to remember the stupid formulae!
He wasn't kidding about snapping fingers btw. A couple of good Neodymium magnets can snap a pencil like a twig.
Envergure 2 years ago
Some keys contain microchips. I hope you could start your car.
Digeridude 2 years ago 23
Yes, I wondered that too, just after I did the video... but it works fine. Phew :-)
-Richard
ppzrjah 2 years ago 2
@Digeridude microchips arent effected by magnets. even ram chips operate by electrical charge... your thinking of a hard drive...
gtq838 1 year ago
@gtq838
Microchips are very easily effected by magnets. They contain wires of various lengths, all of which when passed through a magnetic field will have a current induced in them. Not only will this disrupt the precise charges which govern normal operation, it can also push those currents beyond safe levels and permanently damage the hardware itself. Most chips have some level of magnetic shielding for this reason.
Phage0070 1 year ago
@Phage0070 in theory you make a good point, on the other hand I've held up a rather large n45 magnet directly to the surface of ram and a cpu on a running machine with no adverse effects. and at that proximity thats a pretty extreme magnetic field.
gtq838 1 year ago
@gtq838
Hence the shielding I was talking about.
Phage0070 1 year ago
oh goodie. a brief glimpse at the filmmaker. to paraphrase Mae West:
"Is that a magnet in your pocket or are you just happy to see me?"
asifyoucare41 2 years ago
I'm learning about magnetic field in physics now! :D
trunkszetto 2 years ago 2
absolutely brilliant !!!
we all would love to see more of this kind
brilliantfranz 2 years ago 21
@brilliantfranz speak for yourself, only.
zurechtweiser 10 months ago
cool. magnetism is one of my favorite topics, and the video was really great :P
wwishbear 2 years ago
Can these super magnets be dangerous enough for iron in your blood ?
PhantasyStarOST 2 years ago
I think that if it's strong enough, at most, you can feel a little bit weird. Not enough for your blood to suddenly pop out of your skin like in X-Men.
blicblak 2 years ago
I dont think that's possible.
Cause, although you have paramagnetic elements in your body, you're almost 99% made of diamagnetic elements, that are combinated with your paramagnetc elements inside of you.
So, to do something like, ripping the iron from you're blood is totally impossible, cause if you had that stronge magnetic field on you, you would be bashed away much more early than that could happen.
Draxis32 2 years ago
Yeeesh, having worked around an NMR before I got really nervous when he held his keys next to it. One slip and they'll go flying.
tumest 2 years ago
Woah Brady got a bit frisky there!
DeoMachina 2 years ago
lol... I posted the comment about the superconducting magnet before the video got to that section (I was pleasantly surprised). I noticed that there was a closeup camera shot of the drop of fluid in the hollow. Is that camera immune to magnetic fields, or will all cameras work... just not the actual recording device (HDD for example)?
Kargoneth 2 years ago
Magnetism occupied much of my time when I was very young. I want a superconducting magnet... just for bragging rights. (I wouldn't have any actual use for one)
Kargoneth 2 years ago
Sweeeeeeeet!!!
Magnetism and magnetic fields is my favorite thing about life :3
NAMLegolas 2 years ago
longest so far
yared94 2 years ago
"Vomit Comet"
^_^
Glad to see a video on Magnetism it's my favourite topic within physics.
XxDEBUGxX 2 years ago
awesom !
HAMMERON825 2 years ago