How to pronounce“riffles”in English

Pole and the South Pole of the sun flip, it releases a burst of electromagnetic energy called the sunspot cycle that then eventually hits the earth. We now know that if you lookat the solar activity of the sun, these solar sunspots are like riffles and they will eject huge bursts of energy like a riffle. But the earth is very small and outer space is huge,so for the most part we dodge the bullet. But, going back in the history books, we now realize that many times in the past the earth came close to being hit, and in fact,