Senator Claghorn, the unreconstructed Southerner who refuses to use a compass because it points north, can now take his constitutional in the deepest woods. General Electric has a new compass which points east and west. The needle is made of silmanala new alloy of silver, manganese and aluminumwhich can be magnetized across its width instead of lengthwise, as standard compass needles must be.
But silmanal has more important work to do. Its strong resistance to demagnetizing influencessuch as strong electrical fieldsmakes it useful in electrical control equipment.
Other new permanent magnets:
¶ Cunico (copper, nickel, cobalt) and cunife (copper, nickel, iron), used...