Laboratory centrifuge. A laboratory centrifuge is a piece of laboratory equipment, driven by a motor, which spins liquid samples at high speed. There are various types of centrifuges, depending on the size and the sample capacity.
In American football, each team is allowed 11 men on the field during a play, for a total of 22 players plus the officials.  If there are more than 11 players on the field foâ¦r a play, the team with too many players may be assessed a 5-yard penalty and any play that occurred may be nullified (at the discretion of the opposing team).
A mile contains 5,280 feet. The standard length of the field used for playing American football is 100 yards, or 300 feet. Dividing 5,280 feet by 300 feet yields 17.6, the number of football fields in a mile. Canadian football is played on a field of a different size, which measures 110 yards, or 330 feet long. A mile could hold 16 Canadian football fields placed end to end.