Sentences with phrase «since magnetic poles»

There would presumably be a partner for the third pole, since magnetic poles always come in pairs, he adds.

Not exact matches

The poles have never completely reversed since, but for the past 160 years, the strength of the magnetic field has been decreasing at an alarming rate.

Since north poles are attracted to south poles, the «north» arrow on your compass actually points toward the earth's south magnetic pole, which is the one up north.

That was surprising, since aside from their polarity, the properties of a pair of magnetic poles should be exactly the same, leading to identical radio emissions, says Hankins.

And since both sets of rocks contained palaeo - magnetic evidence of the north and south poles» periodical reversals, researchers were able to calibrate the evidence and arrive at an accurate calendar of changing climate conditions, every 405 millennia.