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Now what they found was if you take a beam of neutrinos from the atom smasher in Geneva, Switzerland, shoot the beam through the mountains from Switzerland to Italy over a distanceof 454 miles, the neutrinos out-raced a light beam by a distance of 60 feet, 60 feet overa distance of 454 miles.
Listen to native speakers pronounce “454” in real conversational contexts with synchronized timestamps and subtitles.