Post Tagged with: "hummingbird"

Harold the Hurried Hummingbird Video

Harold the Hurried Hummingbird Video

Simple mechanism makes┬áthe wings flutter fast By David Wakefield Harold the Hurried Hummingbird’s mechanism is simpler than many others. In fact, if you can drill holes, you can make this mechanism. Scroll down to see Harold in action.

by March 16, 2016 Videos