a figure eight follow through is the most commonly accepted knot for climbing and rescue.
It like when u resque your friend or your pet from dangrous..u use it to help your friends or pet when they are in dangrous and they are asking u for help u should resque them right ..?
No
resque memento
Those lines are "isobars."
Unmanned Aerial Vehicles
isotherms
isotherms
coordination, help and search resque
isobars
isobars
Longitude lines stay right where they are at ... on the surface of the Earth, joining the north and south poles.
The two diagonals, and the two lines joining the midpoints of opposite sides.