Today is November 20, 2019 / /

The Torah Learning Library of Yeshivat Chovevei Torah

Category: Science & Medical Ethics

Rabbeinu Tam’s Two Sunsets: When is it Nighttime?

by Rabbi Dov Linzer
Posted on April 1, 2011

One of the key Tosafots in Shas (Menachot 20b, s.v., ini) discusses the position of Rabbeinu Tam that there are two sunsets – the visible one, and then one occurring almost an hour later, when the sun – according to Rabbinic cosmology – exists the tunnel of the opaque dome of the rakiya, sky or firmament, and begins to travel above the rakiya from West to East so it can rise again the next morning. …

Brain Death and Organ Donation

by Rabbi Dov Linzer
Posted on January 14, 2011

What the halakhic debate around organ donation is all about?   It is unquestionably a mitzvah of pikuach nefesh, saving of life, to give organs after one’s death.  There are times where up to 8 lives can be saved with the organs from one body. …