United States
In U.S. high school track and field, boys typically throw a discus weighing 1.6 kg (3 lb 9 oz) and the girls throw the 1 kg (2.2 lb) women's discus. Under USATF Youth rules, boys throw the 1 kg discus between the ages of 11-14, and transition to the 1.6 kg discus as 15-18 year olds. Girls throw the 1 kg discus as 11-18 year olds.
Under US high school rules, if a discus hits the surrounding safety cage and is deflected into the sector, it is ruled a foul. In contrast, under IAAF, WMA, NCAA and USATF rules, it is ruled a legal throw. Additionally, under US high school rules, distances thrown are rounded down to the nearest whole inch, rather than the nearest centimetre.
US high school rules allow the use of a solid rubber discus; it is cheaper and easier to learn to throw (due to its more equal distribution of weight, as opposed to the heavy rim weight of the metal rim/core discus), but less durable.
Read more about this topic: Discus Throw
Famous quotes related to united states:
“We can beat all Europe with United States soldiers. Give me a thousand Tennesseans, and I’ll whip any other thousand men on the globe!”
—Andrew Jackson (1767–1845)
“I incline to think that the people will not now sustain the policy of upholding a State Government against a rival government, by the use of the forces of the United States. If this leads to the overthrow of the de jure government in a State, the de facto government must be recognized.”
—Rutherford Birchard Hayes (1822–1893)
“... while one-half of the people of the United States are robbed of their inherent right of personal representation in this freest country on the face of the globe, it is idle for us to expect that the men who thus rob women will not rob each other as individuals, corporations and Government.”
—Susan B. Anthony (1820–1906)
“Steal away and stay away.
Don’t join too many gangs. Join few if any.
Join the United States and join the family
But not much in between unless a college.”
—Robert Frost (1874–1963)
“United States! the ages plead,—
Present and Past in under-song,—
Go put your creed into your deed,—
Nor speak with double tongue.”
—Ralph Waldo Emerson (1803–1882)