Magnetism

It has 64 colorful pages that answers everything! From questions like What are magnets and magnetism? to How does a telephone work?.

Contents:

1. Magnetism
2. Magnets and magnetism
3. How did magnetism get its name?
4. What are magnetic poles?
5. What is the law of magnetic poles?
6. How can you cause magnets to float in the air?
7. What are magnetic materials?
8. How does a vending machine reject slags?
9. What are lines of magnetic forces?
10. What is a magnetic field?
11. How can you make a magnetic slag-rejector?
12. Can magnetism pass through materials?
13. What is a non-magnetic watch?
14. What is the smallest magnet?
15. How can you make a magnet?
16. What is a permanent magnet?
17. How can you demagnetise a magnet?
18. How can you make a magnetic belt?
19. What is geomagnetism?
20. Difference between geomagnetism and gravity
21. Why is a magnet's north pole really a south pole?
22. What is a compass?
23. How do you use a compass?
24. How does a mariner use a compass to guide his ship?
25. What is magnetic declination?
26. How the Earth's magnetic poles wander?
27. How do prospectors use magnetism to find ore?
28. What causes the Aurora Borealis or Northern Lights?
29. How did Oersted discover electromagnetism?
30. What is an electromagnet?
31. How can a magnet produce electricity?
32. What part do magnets play in radios and microphones?
33. How does a doorbell work?
34. What is a dynamo?
35. How does an electric motor use magnets?
36. How can you make an electric motor?
37. What part do magnets play in atomic research?
38. How are magnets used in a telegraph?
39. How can you make a telegraph set?
40. How does a telephone work?
41. Glossary
42. Index