Water moved with magnet :confused:

Vulkanyaz · 10th December 2006, 12:46 PM

My science teacher was telling us a few days back that if you held a particularly strong magnet next to a tap with running water, the water could possibly bend

Googled it, only came up with some sorta magnet treatment stuff.
What's your take? Why would a magnet make water bend/move towards it anyway?

brokenback · 10th December 2006, 1:58 PM

the water would have to have "iron" properties, which it does not. Or the other thing i'm thinking of is that the water has a charge (electric charge), which in general it does not.

noboundaries-au · 10th December 2006, 2:03 PM

IIRC you can bend a stream of falling water with a charged rod (like those ones you rub the cloth against in class)

dakiller · 10th December 2006, 2:07 PM

I remember back in high school, year 8 probably, where we rubbed nylon rods with wool and use that to bend water straight out of the tap

Static, yes
Magnetic, NO

mordy · 10th December 2006, 2:41 PM

water is attracted to static, perhaps the magnet was slightly static and that did it, perhaps the pipes in ur school are extremely rusty, that could also cause the water to become slightly magnetic.

noboundaries-au · 10th December 2006, 2:45 PM

And yeah, itd have something to do with the polar shape of the molecule (which you'll learn all about if u do chemistry)

Basically the Oxygen has a slight negative charge, and the Hydrogen a slight positive charge, as the Oxygen is more electronegative (ie. it can pull electrons better)

brokenback · 10th December 2006, 2:53 PM

yeah agree, the water must have some ionic charge.

edit:

I'm enrolled in chemistry units 1 & 2 next year (2007).

rodgrech · 10th December 2006, 2:55 PM

your taps are connected to earth for your house, maybie the magnet is pushing the water away with its field?

brokenback · 10th December 2006, 3:05 PM

Many new homes use poly plastic type pipes for water, which of course is not grounded.

Vulkanyaz · 10th December 2006, 3:13 PM

Thanks for the replies guys

I'll have to try that static one at home, no magnets here that I know of.

So if the water has plenty of minerals in it there would be a higher chance of it being moved by a magnet?
Seems sorta unlikely now that I think of it

Anyway I'll have a go at that nylon rod+wool thing

Cheers

Katunka89 · 10th December 2006, 3:31 PM

just your average plastic biro will do the trick (rub it in your hair then try it), we did that a lot in physics when explaining fields and stuff

Sureshot · 10th December 2006, 3:46 PM

Water is ever so slightly diamagnetic, so if you have a strong enough magnet, you can attract or repel water.

http://en.wikipedia.org/wiki/Diamagnetism

n000b · 10th December 2006, 5:01 PM

Quote:

Originally Posted by Katunka89

just your average plastic biro will do the trick (rub it in your hair then try it), we did that a lot in physics when explaining fields and stuff

Yeah, our teacher always used to get out a glass rod and rub it with a cloth and it would bend the water coming out of the tap

Vulkanyaz · 10th December 2006, 8:42 PM

Tried the biro thing with two biro variants, didn't work,
though still willing to have a shot at some of the other techniques.

Sounds pretty amazing actually, bending water (great magic trick

)

noboundaries-au · 10th December 2006, 8:49 PM

Quote:

Originally Posted by Sureshot

Water is ever so slightly diamagnetic, so if you have a strong enough magnet, you can attract or repel water.

http://en.wikipedia.org/wiki/Diamagnetism

Youd need a rare earth magnet i imagine

10th December 2006, 2:03 PM	#3
noboundaries-au Member Join Date: Jan 2005 Location: Canberra, ACT Posts: 7,600	IIRC you can bend a stream of falling water with a charged rod (like those ones you rub the cloth against in class) __________________ Successful Trades: inspectr, reetzy, sammy_b0i, Mr_LeE

10th December 2006, 2:07 PM	#4
dakiller (Oscillating & Impeding) Join Date: Jun 2001 Location: SE Melb Posts: 6,153	I remember back in high school, year 8 probably, where we rubbed nylon rods with wool and use that to bend water straight out of the tap Static, yes Magnetic, NO __________________ In memory of Cheers Z

10th December 2006, 2:45 PM	#6
noboundaries-au Member Join Date: Jan 2005 Location: Canberra, ACT Posts: 7,600	And yeah, itd have something to do with the polar shape of the molecule (which you'll learn all about if u do chemistry) Basically the Oxygen has a slight negative charge, and the Hydrogen a slight positive charge, as the Oxygen is more electronegative (ie. it can pull electrons better) __________________ Successful Trades: inspectr, reetzy, sammy_b0i, Mr_LeE

10th December 2006, 2:55 PM	#8
rodgrech Member Join Date: Jul 2002 Location: 2fort. Dispensor:Goin' Up Posts: 555	your taps are connected to earth for your house, maybie the magnet is pushing the water away with its field? __________________ Panasonic Toughbook CF-18D 1.2ghz Intel Centrino M, 1.2ghz Ram, 120gb HDD, 10" Touchscreen Green machine AMD Phenom II x4 945 @ 3ghz, 4gb DDR3, Radeon x800 GTO wrapped in a custom green+purple Antec Ninehundred

10th December 2006, 3:46 PM	#12
Sureshot Member Join Date: Mar 2002 Location: Sydney Posts: 1,137	Water is ever so slightly diamagnetic, so if you have a strong enough magnet, you can attract or repel water. http://en.wikipedia.org/wiki/Diamagnetism __________________ Intel I5 2500K 4.5Ghz \| Gigabyte GA-Z68X-UD3-B3 \| 2 X ATi 5870 \| Corsair Series 3 120GB SSD 16 GB RAM \|Silverstone Raven RV01 \| Triple Eyefinity Dell 2405FPW \| Logitech G15

10th December 2006, 1:58 PM	#2
brokenback Member Join Date: Jun 2001 Location: Melbournia, Arsetralia Posts: 1,245	the water would have to have "iron" properties, which it does not. Or the other thing i'm thinking of is that the water has a charge (electric charge), which in general it does not.

10th December 2006, 2:41 PM	#5
mordy Member Join Date: Aug 2001 Location: melb Posts: 5,116	water is attracted to static, perhaps the magnet was slightly static and that did it, perhaps the pipes in ur school are extremely rusty, that could also cause the water to become slightly magnetic.

10th December 2006, 2:53 PM	#7
brokenback Member Join Date: Jun 2001 Location: Melbournia, Arsetralia Posts: 1,245	yeah agree, the water must have some ionic charge. edit: I'm enrolled in chemistry units 1 & 2 next year (2007).

10th December 2006, 3:05 PM	#9
brokenback Member Join Date: Jun 2001 Location: Melbournia, Arsetralia Posts: 1,245	Many new homes use poly plastic type pipes for water, which of course is not grounded.

10th December 2006, 3:31 PM	#11
Katunka89 Member Join Date: May 2004 Location: Perth Posts: 812	just your average plastic biro will do the trick (rub it in your hair then try it), we did that a lot in physics when explaining fields and stuff