The Origin of the Name Navajo. Navajo is a Spanish adaptation of the Tewa Pueblo word navahuâu, meaning farm fields in the valley..Early Spanish chroniclers referred to the Navajo as Apaches de Nabajo (NabajÃ³ apaches who farm in the), valley which was eventually shortened To.. navajohe Origin of the Name Navajo. Navajo is a Spanish adaptation of the Tewa Pueblo word navahuâu, meaning farm fields in the valley..
The next time you go out for tennis practice, or to play a match, you might want to consider checking the balls being used on courts adjacent to you, and then use a different number. That is the one single reason why tennis balls have numbers on them.he number on a tennis ball is meant to help you identify your ball. Kind of like personalizing the ball so it doesn t look like everyone else s. All tennis players have experienced their ball bouncing or rolling onto the next court.
The force of friction of the court on the ball affects the balls spin and horizontal speed, but plays not role in determining its final vertical speed after the bounce. For all tennis courts, the COR and COF of a tennis ball on the court are between 0.5 and 1.0.