Nancy Barkhouse asks

How can we re-magnetize old magnets when they've lost their power? We have a number of old magnets...

m from the Internet asks

Does water affect a magnet's strength? Do magnets lose their strength in cold temperatures? Are...

Anna asks

Does the temperature of a magnet affect its strength?

Todd asks

I am curious. What if two magnetic field lines were to intersect each other? What would this imply...

Toby asks

I have seen in a TV show that by a very high magnetic force field even non-magnetic substances...

Tracy from the Internet asks

Why is a magnet classified as dangerous goods when shipping by air?

Erin Price asks

How can I demonstrate the relationship between magnetism and organisms?

Joey Bergen asks

Do permanent magnets lose their strength when they are dropped and if so, why? I took two magnets...

Gareth Cook asks

How do "security tags" in shops work? I'm referring to the white plastic, bar-coded tags containing...

Marty Ellis from Pittsburgh asks

Can a sintered ore magnet be re-magnetized in a different configuration of its poles? Does it need...

Charles Kern from Detroit Lakes, Michigan asks

Is there a high permeability magnetic shield that does not have iron in it?

Ryan Martinez asks

Why do magnets erase magnetically recorded data? Are there some generally accepted guidelines for...

justine van der Werf from Tiaro asks

I have read that when oxygen is condensed to a liquid state, or indeed to a solid state it becomes...

Rod from canterbury asks

Is there any magnetic shielding material which is not itself attracted by a magnet?

Ryan from Maryland asks

I'm doing a science experiment with magnets and was wondering, do magnets lose their strength over...

Ed from Port Orchard, Washington, USA asks

Do magnets become less massive over time? It requires energy to hold a magnet on the refigerator...

Jesse from Ottawa, Ontario asks

Why do ceramic magnets lose their strength in extremely cold temperatures like dry ice?

Duane from the Internet asks

If two magnets are in contact with each other or close proximity to each other either repulsing or...

Ed Kasica from Oldsmar, florida asks

Why does a magnetic field in the form of a bar magnet effect the movement of a planaria? Does it...

E.H. from AOL asks

I understand about the Curie tempurature but I am wondering if an electromagnet has a Curie...

Sara asks

What happens to a compass when it is held exactly on magnetic north? Does it just spin?

Charles Tramble asks

What can I use to block magnetic lines of force? I have been working on an rf transmitter project...

Ruben from Miami asks

I would like to know if there is any way to magnetize a 6x4x1/2 inch ceramic 8 non magnetized...

Steve Rock asks

I'd like to model magnetic fields on my computer, but I can't find any software. Can you point me...

Kiran Gupta from Singapore asks

Why does a rare earth magnet fall slowly in an aluminium tube but it falls really fast when I toss...

Dallin Shaner from the Internet asks

What is the scientific explanation of why a magnet's magnetism would decrease or increase when its...

Gabby Stec from Harrisburg asks

Why, specifically, do ferrite magnets gain strength in low temperatures?

Matt from Ottawa asks

Knowing the basic functions of magnets (dipoles, domaines...) I still don't understand WHY two...

M Harish from Mumbai asks

Why does a bar magnet repel when it breaks?    n====|====s

Tsiadimos Nick from Athens, Greece asks

If we put a current-carrying conductor inside a magnetic field (i.e. between two permanent...

Ashé from Taree, Australia asks

Why is there no magnetic field in the centre of a bar magnet?