Monday, December 29, 2008

weak magnets


"Magnetic storms occur when a mass of plasma containing trapped magnetic fields is ejected from the Sun and strikes the Earth and its atmosphere. This mass, sometimes called a plasma bubble, travels away from the Sun at about 2 million miles per hour. The bubble does not follow a straight course but rides the rotating three-dimensional spiral pattern of the Sun's magnetic field. If a bubble leaves the right place on the Sun to reach Earth, it travels the 93-million-mile distance in about 40 hours. Viewed from the Sun, our Earth is a very small target. Therefore, the vast majority of plasma bubbles miss Earth, and many that do reach the Earth are too weak to produce a significant storm."
Unless a grain of wheat falls into the earth and dies, it remains by itself alone; but if it dies, it bears much fruit. John 12:24

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