Chaim Gross historian Lewis Jacobs made a 30-minute feature of Gross carving, called "Tree Trunk to Head", showing Gross at work in his East Village studio on a portrait of his wife Renee, who models in the film. In 1949 Gross sketched Chaim Weizmann, President of Israel, at several functions in New York City where Weizmann was speaking. Gross began a portrait in clay and then traveled to Israel in the summer of that year hoping to be able to meet Weizmann and have him sit for a portrait. Weizmann was too ill, but Gross completed the bust in bronze later that
Chaim Weizmann he displayed a talent for science, especially chemistry. While in Pinsk, he also became active in the Hovevei Zion groups there. He graduated with honors in 1892, and decided to pursue chemistry as a profession. In 1892, Weizmann left for Germany to study chemistry. He began his studies at the Polytechnic Institute of Darmstadt. To earn a living while studying, he worked as a Hebrew teacher at an Orthodox Jewish boarding school. In 1894, he moved to Berlin to study at the Technische Hochschule Berlin. While in Berlin, he joined a circle of Zionist intellectuals. In 1897, he moved to