Incoming Resources
- Pulleys in action, Gillian Gosman
- Make this!, building, thinking, and tinkering projects for the amazing maker in you, Ella Schwartz ; photographs by Matthew Rakola
- Inclined planes in action, Gillian Gosman
- Five hundred and seven mechanical movements, embracing all those which are most important in dynamics, hydraulics, hydrostatics, pneumatics, steam engines, mill and other gearing, presses, horology, and miscellaneous machinery, and including many movements never before published and several which have only recently come into use, by Henry T. Brown
- Inclined planes and wedges, by Sally M. Walker and Roseann Feldmann ; photographs by Andy King