| 11. | Radiolysis from gamma rays can create strongly active free radicals in solution.
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| 12. | Gamma ray bursts were discovered in 1967, but the phenomenon remains mysterious.
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| 13. | Gamma rays, discovered in 1967, are observed once a day on average.
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| 14. | Internal shocks within the ejecta presumably trigger the initial gamma ray burst.
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| 15. | The gamma ray burst was detected Saturday morning by two orbiting observatories.
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| 16. | One instrument recorded an 80-second gamma ray burst from the constellation Orion.
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| 17. | This fleeting nature of gamma ray bursts has frustrated scientists for three decades.
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| 18. | It seems to be gamma rays just glowing like nobody's business.
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| 19. | Resolution figures are given with reference to specified gamma ray energies.
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| 20. | A gamma ray spectrometer analyzed the chemical composition of the crust.
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