Solstice in STEM Education Cyclic Chemistry Driven by Light

This article presents an incredible simple version of the Photo-Blue-Bottle (PBB) experiment that works in sunlight. The fact that a considerable amount of green hydrogen is produced, as well as the interpretation of the reaction cycles taking place in spatially separated reaction sites, and the emerging equilibria make the experiment of high educational value with regard to the STEM education for sustainable development. The desired goal is a technosphere that works according to the model of the biosphere.