| Have you ever noticed how many people claim to | | | | We need to teach children about magnets and |
| have built a perpetual motion machine? And most | | | | magnetism to get them into the sciences. A child |
| of these people use magnets and magnetism. It | | | | who is introduced to this concept is more likely to |
| all looks like magic, but we know it isn't, and one | | | | consider math and science as a future profession, |
| has to ask if it is really perpetual motion because | | | | and somewhere to concentrate their schoolwork. |
| it didn't take energy to magnetize those magnets, | | | | In the future we will need more scientists, as our |
| and we cannot forget about that energy. and one | | | | nation progresses forward. Magnets are used |
| has to ask if it will last forever, we know that | | | | everywhere in our society, we use them in our |
| magnets over time stop working. So therefore, | | | | telephones, the ringers, doorbells, cabinets, |
| are these perpetual motion devices really | | | | telegraphs, tape recorders, and so many other |
| perpetual? | | | | places, which the author points out. |
| For these reasons and others like them we must | | | | It is my contention that although this book was |
| as these very good questions, if you like thinking | | | | written in 1963, the laws of physics haven't |
| about this topic, or would like to learn more about | | | | changed. And therefore, this good book is just as |
| magnetism, perpetual motion, and magnets then | | | | great today as it was back then. And that is why |
| I'd like to recommend a very good book for you. | | | | it still resides in my science library. If you can find |
| This is a book that I have in my science library, | | | | a copy on the Internet, and I see them from |
| and the book is; | | | | time to time, then I recommend that you |
| "Magnets and Magnetism; How and Why Book" by | | | | purchase it for yourself. I hope you will please |
| Paul Blackwood, 1963. | | | | consider this. |