GAL: Gradient Adaptive Lattice: GAL: Guggenheim Aeronautical Laboratory: GAL: Gas Analysis Laboratory: GAL: George A. Lincoln (WWII General) Gal: Galindian (linguistics) GAL: Guinea Airways, Ltd. GAL: Groupe Antiterroristes de LibÃ©ration (French: Anti-Terrorist Liberation Group) GAL: Gathering Arm Loader (mining) GAL: Graphics Adapter Language: GAL: Gimbal Angle Loss: GAL
1 If the distance between two magnets is doubled the magnetic force between them will fall to a quarter of the initial value. #(F//4)#.  If the distance between two magnets is halved the magnetic force between them will increase to four times the initial value. #(4F)#.
Objects that are surrounded by a magnetic field can become magnetized for a time and be able to have other objects stick to it. If you attach a nail to a permanent magnet, the nail itself will be caught within the magnetic field and acts as a magnet itself, forcing other nails to attach to it. Sometimes, the magnetic field is too strong for it to disappear right away that an object can retain its magnetism long after it was magnetized.