Welcome to the 1520 Perfect Dictionary
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| Decay constant | |
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| DECAY CONSTANT Definition: The constant ratio of radioactive atoms disintegrating in a given short time interval to the total of those intact at the beginning of the interval. ____________________________________ See perfect ratio. ____ See perfect form (1). See perfect constancy (1). ____ See perfect interval (1). | |
1520 Products |
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1520 Products was established in 2005 with the purpose of entertaining and teaching us on key and important aspects of life (such as marriage, sex, etc) through the playing of games which will allow us to laugh but at the same time pass a message of what is the right or ideal way. |
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 1520 Sex Game |
 1520 Puzzles |
 1520 Marriage Game |