Magnets can move objects without even touching them—but how is that possible? This video breaks down how magnetic fields work, how poles interact, and why magnets attract or repel. Discover the ...

Why would you want to detect metal? Oh, I don't know … maybe you want to find some gold in the ground. You could dig up ALL the dirt, or you could find the location that has the gold before you dig.

The magnet is the characteristic substance that draws in the ferromagnetic material like iron or nickel by the force of attraction. Individuals depend on magnets for industrial and commercial use.