Topic: magnetic field

Book 2

Book 2 in which a scarecrow gives Millie a brilliant idea about magnets is a humorous introduction to magnetism based on the orientation of electron spins. In this adventure, Millie wants to know what it is like to be an electron; she learns about magnetic fields, attractive and repulsive forces, a...…
in books
Book 2

Magnet fishing

Magnet fishing is a growing hobby that involves using a long rope and strong magnet to retrieve lost or hidden metal objects in water. It can help to clean up waterways and improve the environment by removing discarded trash. Magnet fishing is possible because water does not block or weaken a ma...…
in exercises
Magnet fishing

Electromagnetism

Magnetism and Electromagnetism are two related but different concepts. Here's a simple way to understand them: Magnetism is the property of magnets or materials like iron that can attract or repel certain objects. It's what makes fridge magnets stick or compasses point north. For all details re...…
in macroscopic concepts
Electromagnetism

Magnetic materials

A magnetic material is a special kind of metal that can pull certain objects toward it, even without touching them! Most magnetic materials contain iron, nickel, or cobalt. In these materials, some electrons have their spins naturally line up in the same direction creating a magnetic field...…
in macroscopic concepts
Magnetic materials

Magnetic poles

In Book 2, Millie feels confused when the electrons mention their North and South poles. She’s surprised to learn there are two types of poles: geographic poles and magnetic poles and they’re not the same thing! Let’s use Earth as an example to understand the difference. 🌍 Geographic...…
in macroscopic concepts
Magnetic poles

Magnetism

A magnet is a special metal that has the invisible power to "pull" certain objects toward it without even touching them. This pulling power, called the magnetic attraction force, works mostly on specific metals like iron, nails, and paper clips, as well as on other magnets. But not all metals a...…
in macroscopic concepts
Magnetism

Magnetoreception in animals

In Book 2, Millie becomes fascinated by the idea that birds might be magnetic! She even imagines of catching them with a magnet. But soon, she learns the truth: migrating birds aren't magnetic, but they can sense the Earth's invisible magnetic field. It's like they have a built-in compass to hel...…
in macroscopic concepts
Magnetoreception in animals

Does a magnet work under water?

Water does not block or weaken a magnetic field, so the magnet will attract objects as usual underwater. That's why Magnet fishing is possible. Materials like wood, plastic, glass, and rubber let the magnetic field pass through them without weakening it. All these materials do not interact mu...…
in questions
Does a magnet work under water?