The "invisible" line in football is the Line of Scrimmage.
The Line of Scrimmage is the line that divided the offense from the defense, which is located at the tip of the football after it has been placed on the ground, also known as spotting the ball, by the referee. The line extends from sideline to sideline. Players cannot cross the line of scrimmage until the next play begins, and if they do a penalty can be called.
If the offense crosses the line of Scrimmage before the ball is snapped, the following penalties can be called:
If the Defense crosses the line of Scrimmage before the ball is snapped, the following penalties can be called:
line of scrimmage
its sort of the invisible line where the quarterback throws the ball, and once the ball is thrown the QB cant run forward. :) I think
An invisible line that forms east-west circles around the Earth is called both parallel and line of latitude. An imaginary line that circles the earth from north to south is called both meridian and line of longitude.
Its called the earth's axis
A Line of longitude is an invisible line going north to south on the earth. The main one is called the prime meridian.
The Invisible Line was created on 2008-03-25.
That line is called the line of scrimmage.
The Prime Meridian is the invisible line at zero longitude
nothing
The invisible line at 0 degrees longitude is called the Prime Meridian. It serves as the starting point for measuring longitude and divides the Earth into the Eastern and Western Hemispheres.
The equator.
Its called the International date line. See the related link for more information.