27th annual Kinetics Sculpture challenge
Erin writes – “This weekend, during the fabulous power tool races, was the incredible annual Kinetics Sculpture Challenge in Boulder, CO. These hand-made, human-powered crafts have to face an incredibly difficult over land-and-water-and-combinations-thereof course, which the fastest team completed in hour-and-a-half. Three-and-a-half hours later the last team to make it under the deadline drug their […]