Rachel Znamirowska was born in
Kalush,
Poland on the
eve of Passover 1904 to Gittel and Hanoch Znamirowski, a
Hassidic family. Her father was a lumber merchant, and she grew up in Kalush. Her father taught her, and her siblings the importance of independence. As a young girl, she was determined to learn Hebrew even though her father forbade it. Aged fifteen, she decided that she wanted to attend a Jewish school in Warsaw, due to the antisemitism in the private school she attended. Her parents did not want her to leave home, so she went on a hunger strike and was eventually allowed to move to her aunt's home in
Warsaw, where she graduated from high school with honors in mathematics. She then studied
chemical engineering at Warsaw's
polytechnic institute, but due to antisemitism she experienced there, she intended to continue her studies in the Czech Republic instead. Before she moved colleges, in 1925 she joined a group of Jewish students on a tour of Eretz Yisrael, at the time
Mandatory Palestine, where the
Hebrew University had recently opened. She decided to make
Aliyah and stay there, to her parents' chagrin, and they told her that they would stop supporting her financially. She studied
structural engineering in the
Technion, and worked in the laboratories of the Nesher cement factory during her studies, graduating in 1930. == Career ==