[1][2][3] Altar contributed to the mathematical and conceptual underpinnings that were verified by Appleton's research, in collaboration with Dr.
[4] Due to the poor job market post World War I, Altar, in 1925, moved to his uncle's home in London.
[1] From 1935 to 1937 he served as a researcher at the Frick Chemical Laboratory at Princeton University, working on a study of optical rotatory power in organic molecules.
On several occasions, Altar had tea and discussions about physics with Albert Einstein in their native German language.
[citation needed] During his time in King's College, Altar and Appleton made slow progress every day.