Military Department, Military Department "Folder exercises" on working with a telescope. In theory, there is a formula for calculating the distance type: D (distance) = U (angle) * B (distance) * 1000 (D = U * B * 1000). For ease of memorization, the subterfuge advised to read as "Due in a thousand". So here we stand on the stadium, measuring the distances.
To calculate the distance, use the formula...
(C) the subjects: ? to O_o (no one remembers natural)
P (for a long time): Dooui... (wait to continue)
In the Hueyoui!! to