HAPPY BROWNIES
Luisin Roldan   Chimbote, Ancash, Peru
 
 
Gozuuu de Gozuuuus!
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HAPPY BROWNIES 24 mar 2018, ore 15:16 
ds² = dx² + dy² + dz² - c² dt²

HAPPY BROWNIES 24 mar 2018, ore 15:12 
ds² = dx² + dy² + dz² - c² dt²