%0 Journal Article %T TiltTray: A 3D-Printed Apparatus to Teach Inclined-Plane Physics Through Smartphone Portrait-Landscape Transitions %A Larnder, Chris I. %J The Physics Teacher %V 59 %N 7 %P 542-543 %@ 0031-921X %D 2021-10-01 %I American Association of Physics Teachers %~ DeepDyve