a boy's voice stops changing after puberty.
a boy's voice stops changing after puberty.
when does a boy's voice stop changing?
after puberty
Na
Na
1247 memoria









































1247 memoria, provisional designation , is a dark themistian asteroid from the outer regions of the asteroid belt, approximately 37 kilometers in diameter. it was discovered by marguerite laugier at uccle observatory in 1932, who later named it "memoria" in memory of her pleasant stay at the discovering observatory.









































section::::discovery.
1247 memoria