We have no meanings for "magnetic polarity" in our records yet.
1 Then comes another change of magnetic polarity .
2 This will then lead us to a joint study of the nature of electric polarity and magnetic polarity .
3 The crucial difference between MRAM and DRAM is that Parkin's chip operates without electricity, relying on magnetic polarity to store data.
4 First observed in 1843, the solar cycle lasts on average 11.1 years, with sunspots switching magnetic polarity at the beginning of each new cycle.
5 Probably the magnetic polarities of jewels, rather than their brilliancy, constitute their chief potency as talismans.
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