You guys admire Ed for wrong reasons
Ed was a curious individual and he read a lot of the electricity books at local library. What most of you consider PMH was Ed's discovery, I have news. PMH was discovered long before Ed's time. And now you all take it as his invention only because you did not know it from the school books.
While is still in the public domain, I recommend you to download this book (http://www.archive.org/download/davi...00davirich.pdf) and learn what is not thought in nowadays manuals. In the original document page 80 you will find the figure 54 with the PMH and on the next page you will read:
Note 1: For all of you truly interested in research, start with this manual; there are things not thought in nowadays manuals.
Note 2: Ed's genius was not the PMH as it was common knowledge in his time. He found it in the books and tried to make it a learning tool. As an example is the commonly known transformer (which BTW is not built as in old times on U+I shape core but rather E+I shape nowadays). I believe though he accomplished more than he described in his writings. We may never know what his patent application was all about. However, his genius took the PMH (again not his discovery) as a start point and found a way to fulfil his vision.
So just replicating an experiment considered common knowledge [at least] in 1842, won't put you on Ed's imagination. If you have yours, go nuts. At least this is what I try.
Ed was a curious individual and he read a lot of the electricity books at local library. What most of you consider PMH was Ed's discovery, I have news. PMH was discovered long before Ed's time. And now you all take it as his invention only because you did not know it from the school books.
While is still in the public domain, I recommend you to download this book (http://www.archive.org/download/davi...00davirich.pdf) and learn what is not thought in nowadays manuals. In the original document page 80 you will find the figure 54 with the PMH and on the next page you will read:
If, however, the armature is applied to the poles, and the flow of the current is stopped while it is attached, it will continue to adhere for weeks or months with great force, so as to be able to sustain one third or one half as much weight as while the current was circulating. But if once removed, nearly the whole magnetism will disappear, and the magnet, if of good iron, will not even be able to lift an ounce.
Note 2: Ed's genius was not the PMH as it was common knowledge in his time. He found it in the books and tried to make it a learning tool. As an example is the commonly known transformer (which BTW is not built as in old times on U+I shape core but rather E+I shape nowadays). I believe though he accomplished more than he described in his writings. We may never know what his patent application was all about. However, his genius took the PMH (again not his discovery) as a start point and found a way to fulfil his vision.
So just replicating an experiment considered common knowledge [at least] in 1842, won't put you on Ed's imagination. If you have yours, go nuts. At least this is what I try.
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