A United States quarter-dollar coin, minted in 1964 or later, weighs 5.670 grams, or 0.200 ounces. The weight of the quarter has varied somewhat since the date of its first issuing, in...
Sibling Rivalry â  Sibling Abuse: Parents Beware! Sibling abuse can be more damaging than you might think... Sibling rivalry is considered a normal and routine part of family life these days. Bickering, teasing and fighting among siblings can be seen everywhere from school bus stops to our television sets.
According to the Urban Dictionary, a sister complex means excessive love for one's sister, beyond what is considered normal for an ordinary sibling relationship. The term is often used to tease or insult someone who is overprotective of his or her sister, and is a common reference in Japanese anime.