For Rabbi Shlomo Einhorn, teaching classes for five hours straight on Shavuot was just a warm-up. On Dec. 24, he’ll sit in front of his computer for 18 hours and teach Torah to anyone who tunes in online.
Beginning at midnight, Einhorn, the dean of Yeshivat Yavneh on West Third Street, will attempt the educational marathon that is being billed as the longest streamed Torah lecture, or shiur, in history. It can be accessed at