Eddy currents also known as Foucault currents...basically, as the magnets fall, the copper tube becomes a generator and an electromagnet at the same time; the magnet moving by makes the copper tube generate electricity which essentially turns the pipe into an electromagnet which the attracts the magnet as it's falling down. As the magnet slows down, it also reduces the amount of electricity it generates which in turn reduces the attraction...and so on...
The magnet moving through the pipe induces a current causing the pipe to become a weak electromagnet, thus lightly attracting the magnet and slowing it's descent. When the magnetic field stops moving, the current stops, and thus the pipe stops being an electromagnet.
What a great demonstration of Lenz's Law! An induced electromotive force (emf) always gives rise to a current whose magnetic field opposes the original change in magnetic flux.
As the magnet moves through the copper pipe, an excellent conductor of electricity, it induces a current in the pipe creating magnetic field that opposes the movement of the magnet down the pipe. Since it is not a perfect conductor of electricity, the magnet slowly falls through the pipe instead being completely stoppped
What happens if you move the pipe down (or up!) as the magnet is falling? Would moving it up cause the magnet to fall even slower? We did Lenz's law in Physics.... but I'd quite like to a video of suggestion
@TuneMaestro Yes, if you moved the pipe up fast enough, you could hold the magnet in a fixed position. That would be a fun demo for sure. Another fun one would be to suspend the magnet on a string and release the pipe with the magnet inside. Then the pipe would drop at a freaky slow speed.
The ultimate would be to try a high temp superconducting pipe!
Try this with some silicon steel if you can find it, its the stuff used in generators to boost the generator current by harnessing the current fields. Its non-magnetic too, but should create even stronger eddy currents, it might be fun to put silicon steel outside the copper pipe too.
@Eaversify no, the suspension is created by the magnet moving, and the induced field will always be weaker than the magnet itself, so it can only be slowed down.
@pseudotasuki Kewl...It seems like a meditation method...just continue putting that magnet in there, while deep breathing...and feel the stress melt away (and be pulled away by the magnetism : P)
This is because the copper tube "sees" a changing magnetic field from the falling magnet. This changing magnetic field induces a current in the copper tube.
The interesting thing is about the weight, when you drop the magnet through a copper tube and weigh it at the same time, you can observe that partial weight of the magnet is also added to the copper tube's weight. Since I don't have a very detailed testing equipment, I can only observe.
what would happen if you were somehow clothed in this magnet, and were dropped down a giant copper pipe? To my imaginative childish-like mind, that sounds very exciting! :D
obviously a jedi
MethodRips 19 hours ago in playlist V2Leanback5
he sounds like zach galifinakis a bit
sdyankz111 2 days ago in playlist V2Leanback5
I want one.
Mosley2 5 days ago
fucken magnets, how do they work?
Electfried 2 weeks ago
vsauce sent me....
Breez890 2 weeks ago in playlist V2Leanback5
Eddy currents also known as Foucault currents...basically, as the magnets fall, the copper tube becomes a generator and an electromagnet at the same time; the magnet moving by makes the copper tube generate electricity which essentially turns the pipe into an electromagnet which the attracts the magnet as it's falling down. As the magnet slows down, it also reduces the amount of electricity it generates which in turn reduces the attraction...and so on...
aluminum braking is another good example
mofoq 3 weeks ago 5
Where can you buy one a Type K Neodymium magnet?
BittenVenom 1 month ago
What would happen if you attached all those magnets to a person, and they went through a larger copper pipe? Would they float?
Reid1Reid1 1 month ago
@Reid1Reid1 they would fall slower than normal that is all
phunkyphantom619 3 weeks ago
I wish he would have dropped it once outside of the tube so we could see the difference
rainbowsandjessies 1 month ago
@rainbowsandjessies Never seen anything fall before?
jmstew0319 1 month ago
Epicness level: Maximum
haddib 1 month ago
what kind of black magic is this? o_O
dsbt1 1 month ago in playlist V2Leanback5
i was reading a book about anti gravity, it was imposible to put down
Sinapples 1 month ago in playlist V2Leanback5
dat logic
AlucardAnimation 1 month ago in playlist V2Leanback5
how elevator safety systems work
Koumajutsu 1 month ago
troll science?
miharbi0109 1 month ago
Now supercool it!
smileman66 1 month ago
Is heat generated in the pipe or magnet?
colt4667 1 month ago
The magnet moving through the pipe induces a current causing the pipe to become a weak electromagnet, thus lightly attracting the magnet and slowing it's descent. When the magnetic field stops moving, the current stops, and thus the pipe stops being an electromagnet.
GryffinDarkBreed 1 month ago
Someone report this bug to god
Mrsteelkiller 1 month ago
45 seconds of my life i won't get back
PhantomOdin130 1 month ago in playlist V2Leanback5
@PhantomOdin130 Fuck off..
kikook222 1 month ago
@kikook222 anger management
PhantomOdin130 1 month ago
Fucking magnets, how do they work?
shenkiin 1 month ago in playlist V2Leanback5
MIND BLOWN
AHSProductionsNo 1 month ago in playlist V2Leanback5
when u throw it in the inside of the pipe.. does it feel heavier?
KouReaC 2 months ago in playlist Trending Videos of the Week (8/13)
Are you some kind of wizard?
WadaHolic 2 months ago
Suit made of magnets + Huge copper tube = Low gravity slide!?!
flypiefilms 2 months ago 11
awesome way to power elavators
magmaboarder 2 months ago in playlist V2Leanback5 4
This comment has received too many negative votes show
"I can do this all day". Well good for you, I can't...I have a life.
Cool nevertheless.
truthseeker9261 2 months ago
How old are you? That was my 3rd grade Science project.
skillitt1 2 months ago
I wonder what the feasibility would be for a relatively cheap method for atmospheric re-entry...
MrSgtYork 2 months ago
DAMN YOU, PHYSICS!
thunktank 2 months ago 30
I remember my HS physics teacher showing me this. It blew my mind then and still does now.
timmyp112 2 months ago
the movement of the magnet reminds me of the TARDIS spinning through space!
strongbad2795 2 months ago
definitely very cool.
jamie1707 2 months ago
Comment removed
GettingStrange 2 months ago
High school physics. Look it up on wikipedia, it's shameful how few people are blown away by this.
tofucyborg 2 months ago
What a great demonstration of Lenz's Law! An induced electromotive force (emf) always gives rise to a current whose magnetic field opposes the original change in magnetic flux.
As the magnet moves through the copper pipe, an excellent conductor of electricity, it induces a current in the pipe creating magnetic field that opposes the movement of the magnet down the pipe. Since it is not a perfect conductor of electricity, the magnet slowly falls through the pipe instead being completely stoppped
ZachreyCA 2 months ago 2
WHAT WIZARDRY IS THIS?!
PwnforceFrank 2 months ago 2
What happens if you move the pipe down (or up!) as the magnet is falling? Would moving it up cause the magnet to fall even slower? We did Lenz's law in Physics.... but I'd quite like to a video of suggestion
TuneMaestro 2 months ago
@TuneMaestro Yes, if you moved the pipe up fast enough, you could hold the magnet in a fixed position. That would be a fun demo for sure. Another fun one would be to suspend the magnet on a string and release the pipe with the magnet inside. Then the pipe would drop at a freaky slow speed.
The ultimate would be to try a high temp superconducting pipe!
ZachreyCA 2 months ago 4
@ZachreyCA You sir, have some great ideas!!
JamesRB1995 2 months ago
I saw this in physichs class lawl
stoadame0530 2 months ago
Comment removed
Eggbert1x 2 months ago
AWESOME!
DaltonHon009 2 months ago in playlist V2Leanback5
anti gravity my ass. Eddy current. nuff said
jimday666 2 months ago
@jimday666 if you pay attention you will notice that he mentions eddy currents both in the video and the description.
styx85 2 months ago
@styx85 yes. eddy current. that's what I said, not bullshit anti-gravity.
jimday666 2 months ago
Try this with some silicon steel if you can find it, its the stuff used in generators to boost the generator current by harnessing the current fields. Its non-magnetic too, but should create even stronger eddy currents, it might be fun to put silicon steel outside the copper pipe too.
holychitlingravy 2 months ago
where's my hoverboard!
zychozyborg 2 months ago
Does this mean a small enough "Neodymium Magnet" could stay suspended in the pipe?
Eaversify 2 months ago
@Eaversify no, the suspension is created by the magnet moving, and the induced field will always be weaker than the magnet itself, so it can only be slowed down.
Iwantbrokenlaptops 2 months ago
v-sauce ?
V0dk4n4tion 3 months ago
The guy sounds like zach galifianakis.
haha
jormalk 3 months ago
hmm that magnet must v been made in mexico so lazy ...
FranchTickler 3 months ago
where did you get the copper pipe? i looked in home depot, but they only had small diameter pipes. is that 2 inch pipe?
thanks,
rutica 3 months ago
haha everybody is watching the vsauce leanback
theonlyonimod 3 months ago in playlist V2Leanback5
WHERE IS YOUR GOD NOW?!
jujubean1984xx 3 months ago 2
so if I cover my self in neodinium magnets and jump down a copper tube when i land i wont get hurt(well not to badly)
spartan7126 3 months ago in playlist V2Leanback5 2
does the pipe get heavier?
robotsandownage1 3 months ago in playlist V2Leanback5 2
ahahahaa antigraaaaaaaaaavity MACHINE
xminervaxszf 3 months ago in playlist V2Leanback5
this guy MUST be the double rainbow guy
Northstable1234 3 months ago in playlist V2Leanback5
How did I not know about this?
richd506 3 months ago in playlist V2Leanback5
Anti gravity machine. I'm saying it like that from now on
MtvRuinedMe 3 months ago in playlist V2Leanback5
This has been flagged as spam show
I would really appreciate it if you me the EXACT website you got the magnets from.
OddAdam 3 months ago
The magnet isn't going slow, he's just moving his hand very fast.
michaelgrella 3 months ago in playlist The Universe EXPLAINED!
lol. Lenz's Law
IceCreamUnity 3 months ago in playlist V2Leanback5
I live right by u lol
kdogsminecraft 3 months ago
if only they added this feature to the nanosuit in Crysis 2......
Naruto73176 3 months ago in playlist V2Leanback5
my hobby- posting 'reactions' that don't envolve the video. in this case 'ouch'.
caocoll10 3 months ago in playlist Trending Videos of the Week (8/13)
Comment removed
caocoll10 3 months ago in playlist Trending Videos of the Week (8/13)
Can i have it?
Coles109 3 months ago in playlist V2Leanback5
Its cool, but to do this all day ,so stupid
oasiskurabu 4 months ago
shadow looks like a dick
geniusmrlai 4 months ago
definitely a glitch in the matrix
ianokenny777 4 months ago in playlist V2Leanback5 198
hermoso y desconocido...
TheBastaldo 4 months ago
i liked it when someone snorted when he said special effects.. :D
michlaseven 4 months ago in playlist michlaseven's favorites
I love when top comments are hilarious
bydrew333 4 months ago
That's awesome!
bddblade 4 months ago
There is no spoon
UHLANDUS 4 months ago
Mind fuck
airsoftoverkills 4 months ago in playlist V2Leanback5
will it slow down if u drop it from a high distant?
wotvp 5 months ago in playlist V2Leanback5
those magnets are so expensive
NiceQuietkid 5 months ago in playlist V2Leanback5
You guys are defiantly stoners...
Bodysmoker 5 months ago in playlist V2Leanback5
give me that and a few tabs of acid, and i'd be good to go
DMrsAR 5 months ago in playlist V2Leanback5
what is this witchcraft?!?! somebody please think of baby jesus! lol
Ssddftw 5 months ago in playlist V2Leanback5
@pseudotasuki Kewl...It seems like a meditation method...just continue putting that magnet in there, while deep breathing...and feel the stress melt away (and be pulled away by the magnetism : P)
Lucidreamable 5 months ago
is that zach galifianakis talking?
sytrix14 5 months ago
God already patched it...
djracab25 5 months ago in playlist V2Leanback5
i would like a suit made of neodymium magnets and throw myself down a giant cooper tube
GipTukeMan25 5 months ago in playlist V2Leanback5
This is some fucking druid black magic
Battlefield2Pilot 5 months ago
This is because the copper tube "sees" a changing magnetic field from the falling magnet. This changing magnetic field induces a current in the copper tube.
TerrorrLA 5 months ago
Science!
dmatranga7 5 months ago
The interesting thing is about the weight, when you drop the magnet through a copper tube and weigh it at the same time, you can observe that partial weight of the magnet is also added to the copper tube's weight. Since I don't have a very detailed testing equipment, I can only observe.
zizuvi 5 months ago
"ANTI-GRAVITY MACHINE" his voice is EPIC. xD
d34thg0d99 5 months ago in playlist V2Leanback5 2
Vsauce2 sent me here
RobtheKing7 5 months ago in playlist V2Leanback5
thumbs up if you've seen this on HouseHoldHacker already :)
kamielftw 5 months ago in playlist V2Leanback5 24
wooow doudle rainbow all the way (^-^)
Carlitos15311 5 months ago in playlist V2Leanback5
its not antigravity, its still falling.
There is no antygravity at all!
soadhusky 5 months ago in playlist V2Leanback5
eddy currents! wow, i remembered something i learnt in physics..
FrozenFlame333 5 months ago in playlist V2Leanback5
I realised that the Neo Magnets i have bought are actualy really small for im fine in buying a 15mm Copper Pipe.
rankiju 5 months ago in playlist rankiju's Favourited Videos
you sound like xcal
DjGranSasso 5 months ago in playlist V2Leanback5
Eddy currents!!! :D
sinecurve9999 5 months ago in playlist V2Leanback5
Woah, Rockford.
PhreakIck 5 months ago
what would happen if you were somehow clothed in this magnet, and were dropped down a giant copper pipe? To my imaginative childish-like mind, that sounds very exciting! :D
cutiepie316289 5 months ago in playlist V2Leanback5
syntax error: gravity expected near earth
SkippyLeDoo 5 months ago
>.> are you god?
TheEsotericKid 5 months ago in playlist V2Leanback5
thats trippy as fuck.. do not look at this when stoned.
MikeyD9 5 months ago 3
Error occurred :(
sarasingslots 5 months ago in playlist V2Leanback5
VSAUCE ARMY
teddykruk 5 months ago in playlist V2Leanback5
holly shit
stupidticks 5 months ago in playlist V2Leanback5
So Its Just Copper Pipe And Magnet
MegaHarris470 5 months ago in playlist V2Leanback5
@MegaHarris470 Neodymium Magnet
rankiju 5 months ago in playlist V2Leanback5
@rankiju Ahhh So There Is A Catch !!!
MegaHarris470 5 months ago
@MegaHarris470 I ordered one for about £5 for 4 of them, you can get some smaller ones for like £2 for 50.
rankiju 5 months ago
@rankiju Thankx FOr The Info
MegaHarris470 5 months ago
@MegaHarris470 Anytime.
rankiju 5 months ago
how does this work? I am confused..
electroneticTV 5 months ago in playlist V2Leanback5
ANTI GRAVITY MAHCHEENE!
thecheatlord999 5 months ago in playlist V2Leanback5
0:24 ARE YOU BUTTHEAD? lol
GillFrogMusicMan 5 months ago in playlist V2Leanback5
i know why that is happening wo had this in school once
MachineOnTube 5 months ago in playlist V2Leanback5
thums up if you saw this and the goussian gun on household hacker
TheBoooogieMan 5 months ago in playlist V2Leanback5
BURN this WITCHCRAFT! lol
darkbluemars 5 months ago in playlist V2Leanback5
Even the guy says "its weird stuff". I think it was Jesus, maybe even God
stuch11 5 months ago in playlist V2Leanback5
flip the tube around with the magnet in it XD
chopsticks 5 months ago in playlist V2Leanback5
THE WORLD MUST KNOW
TahniRose 5 months ago in playlist V2Leanback5 2
try that submerged in water and see wat would happen
ricebag 5 months ago in playlist V2Leanback5
I want a suit made of this, and a giant tube...
thormaxtwo 5 months ago in playlist V2Leanback5 180
Holy gravity batman!!
MegaMridontknow 5 months ago in playlist V2Leanback5
VSAUCE!!!!!!!!!!!!
UrbanSniperWTF69 5 months ago in playlist V2Leanback5
VSAUCE!!!!!!!!!!!!!!!
beinggirl13 5 months ago in playlist V2Leanback5
VSAUCE IS BOSS!
jeffsshow 5 months ago in playlist V2Leanback5
There are actually some vehicle brakes that work like this.
guyboy625 5 months ago in playlist V2Leanback5
householdhacker
MrTang99 5 months ago in playlist V2Leanback5
For some reason this reminds me of portal!
dragonrider4141 5 months ago in playlist V2Leanback5
why is a conversation about buying magnets on top comments
"HOLY SHIT THAT WAS A GREAT COMMENT, OH THAT ONE TOO IMUST GIVE THEM A THUMBS UP"
lollolol youtubers these days
oPuppet 5 months ago in playlist V2Leanback5
hahaha awesome
xkingxx00 5 months ago in playlist V2Leanback5
hold it sideways
itztheJL 5 months ago in playlist V2Leanback5
@EveryoneIsBoring ho watch HouseHoldHacker they should have one vid about them
treez1k 5 months ago in playlist V2Leanback5
elevators anyone?
ThatBossGuy 5 months ago in playlist V2Leanback5
mesmerizing
nintendoatarikiller 5 months ago in playlist V2Leanback5
new elevator idea ;p
340shorty 5 months ago in playlist V2Leanback5
Real life is lagging.......
AnotherNutJob 5 months ago 3
i could do this all day
IMaSUPERman2 5 months ago in playlist V2Leanback5
FUCKIN MAGNETS
Spielzeit85 5 months ago in playlist V2Leanback5 2
he is a wizard
hotdarkmagiciangirl 5 months ago in playlist V2Leanback5
Don't worry, God is patching this next.
ughatjsp 5 months ago in playlist V2Leanback5 124
@ughatjsp Hahahaha this is the most clever comment I've ever read on youtube!
eriegz 4 months ago
Take two copper pipes and switch the top pipe to the bottom pipe as the magnet goes down.
jetblack297 5 months ago in playlist V2Leanback5
VSAUCE ARMY, GET ME ONE OF THESE!
PCJews 5 months ago in playlist V2Leanback5
MABE HES JUST A GIANT!?!
MRdiggy727 5 months ago in playlist V2Leanback5
VSauce
GreatBritishGamers 5 months ago in playlist V2Leanback5
I saw this before on HouseholdHacker!
peach 5 months ago in playlist V2Leanback5
Woohoo! Go Rockford Illinois!
CabezaQuesa 5 months ago in playlist V2Leanback5
Vsauce Brought me here
blackbears200 5 months ago in playlist V2Leanback5
they should make a big hole and a magnet suit for people to jump down! :D
humudu 5 months ago in playlist V2Leanback5
The way it twists and stuff is awesome.
3icemonkey 5 months ago in playlist V2Leanback5
I saw this one before vsause. :P
KeenuTehUneek 5 months ago in playlist V2Leanback5
VSAUCE FTW
guitartutorials482 5 months ago in playlist V2Leanback5
You know you dont have a life when you could stand with a tube and a magnet all day, pushing the magnet trough the tube
casinomann 5 months ago in playlist V2Leanback5
we did this last week in school :)
Alien590 5 months ago in playlist V2Leanback5
i love physics
MrJarth 5 months ago in playlist V2Leanback5
Someone ingeniously invent a toy out of this.....
TheGradical 5 months ago in playlist V2Leanback5
I remember household hacker had made something like this
b34113411 5 months ago in playlist V2Leanback5
you can use a pipe made of aluminum instead of copper pipe.
noname0907 5 months ago in playlist V2Leanback5
WTF
1816cheese 5 months ago in playlist V2Leanback5
he sounds like peter coffin
TheCrazedGamer100 5 months ago in playlist V2Leanback5
VSAUSE ARMY
hyppaa1 5 months ago in playlist V2Leanback5
Sweet!!
hypersonamyguy 5 months ago in playlist V2Leanback5
LEANBACK
eliteguy720 5 months ago in playlist V2Leanback5
Does the pipe feel heavier when the magnet falls through it?
snomimons 5 months ago in playlist V2Leanback5
Works with aluminum too! :D