Prepare for Rosh Hashanah with these upcoming Lamdeinu lectures. Rabbi Hayyim Angel will speak on the uncertainty principle in the Books of Yonah and Yoel on Wed., Sept. 5, at 1 p.m., followed by Rabbi Tzvi Sinensky with a discussion on the untold history of Kol Nidrei that evening at 8:15 pm. The next evening, Thursday, Sept. 6, at 8:15 p.m., Dr. Tammy Jacobowitz will explore the topic, “Taking Ownership: Biblical Models of Teshuvah.” Men and women are welcome to all classes, $25 each. More info at lamdeinu.org.