Books etc

Making a magnet

How to make a homemade magnet Materials Needed A metal object that is attracted to a magnet (like a nail, paperclip, or screwdriver). A strong magnet. (Optional) A small bowl of paper clips or pins to test your magnet. Instructions 1. Choose a Metal Object Pick an item...…
in exercises
Making a magnet

How strong is a magnet?

Measuring the strength of a magnet Activity: How Many Paper Clips Can Your Magnet Hold? Materials Needed A magnet. A box of paper clips. A ruler. Instructions 1. Set Up Your Experiment Place your magnet on a flat surface. Gather your paper clips in a p...…
in exercises
How strong is a magnet?

Discovery of electron spin

In 1922, Otto Stern and Walther Gerlach, two German physicists, conducted a groundbreaking experiment that demonstrated that electron spin and magnetism were related. To understand it, let’s imagine you have a strong magnet and a bunch of tiny beads. If you throw the non-magnetic beads through the m...…
in history
Discovery of electron spin

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