Natural Sciences as a Constitutive Element of Modern Adult Education Imparting natural scientific knowledge to a socially broad audience was already quite common in manifold forms before adult education as such was really constituted in the last third of the 19th century. Some of the questions raised when natural science spread in the 18th and 19th centuries are still or again relevant in the 21st century. This paper tries to demonstrate that notion in a summarized form on the basis of an ex…