The Strandbeests range in size from not much bigger than a human to stretching across a large room. Some of them are relatively simple contraptions that can be pushed around by humans or sails, whereas others operate on a system of a wind-powered compressed air mechanism. All the “beests” on display at the Exploratorium are built from PVC pipe — which is a yellowish color in the Netherlands for some reason — though Jansen has experimented with wood in the past.
If you’d like to check out the exhibit yourself it runs through September 5th. And you’ll have a chance to revisit your favorite Exploratorium exhibits while you’re at it, of course.