Sound Waves Visualized With Water
131 Views, 2 Favorites
A Smartphone Attached Spectrometer ! Education With Colors of the Rainbow
1.0K Views, 13 Favorites
Ball Puzzle : a Complex 3D Printed Puzzle Which Looks Very Simple
764 Views, 6 Favorites
A Unique Text Puzzle With 120 Different Word Combinations
259 Views, 3 Favorites
Unique Food and Water Dispensing Bird Feeder Open Source With 3d Printable Files
1.1K Views, 25 Favorites
Vertical Axis Wind Turbine Along Locomotive Tracks/railway Tracks for Renewable Electricity Generation
343 Views, 5 Favorites
