摘要
This magnet was created on a 3-D printer at Oak Ridge National Laboratory in Tennessee.(A ruler is shown for scale.)The method wastes less material than other ways of making magnets.A group of researchers at Oak Ridge National Laboratory have found a novel way to build magnet with 3-D printers.
This magnet was created on a 3-D printer at Oak Ridge National Laboratory in Tennessee. （A ruler is shown for scale.） The method wastes less material than other ways of making magnets.
