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Referring to the Fraser-Smith discovery, the May, 1996 issue of Scientific American featured an article called Detecting Natural Electromagnetic Waves which describes how the amateur scientist can make their own antenna to detect these earthquake precursors. The article on page 98 stresses that this is an inexpensive undertaking:

The April, 1996 issue of Scientific American featured an article called The New Backyard Seismology, which describes how the amateur scientist can make their own seismograph. This personal seismograph is now an inexpensive undertaking due to the availability of a new product.

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