Die Spitze eines befestigten Triebes der Zaunwinde führt Zirkumnutationsbewegungen aus. Auf die Berührung einer Stütze reagiert sie mit Windebewegungen. Zeitraffung.

Rawitscher's film about twining plants shows conclusively in twining plants, which have a constant direction of coiling, that unimpeded circular motion occurs without twisting. This is demonstrated by direct registration with india ink. In this way a convincing picture of the characteristic circumnutation is given both in free-coiling and in coiling around a support. The film, however, also confirms that the well-known geo-, photo- and autotrophic reactions - when combined with circumnutation - suffice to bring about an orderly entwining of a suitable support.