I would like a homemade magnetic board I can hang for my kids in their bedroom to put magnets and photos and toys and natural magnets. Not from walmart (too lightweight and dont think strong enough) Are there any geologists or metal workers who know about this stuff? The kids would love something like that. Thanks !!
Limestone (or other carbonate rock) bedrock caverns disappearing streams springs sinkholes collapsed cavern ceilings
These are depicted in some Chinese paintings. basixcally the landscape is flat but with dramatic and steep thrusts of rock protruding vertically from the flat land. It is a very interesting landscape.
any sheet that is iron or steel based is the board. the magnets have the magnetism Iron is made magnetic if it is near a strong magnet or or a electric current all magnetism is electric charge in motion if there is no obvious current it is the atoms be careful with very small magnets. any small child that eats several can get their intestines stuck' some have died , many have required surgery
