Shiur from Rabbi Elimelech Kohn Ztl on פרשת נח.  Discussed:  What is the connection between the Mitzvah to build the Taivah and the Mitzvah to build the Mishkan, and how the function of Yeshivos have evolved over the years from being just a Mishkon to serving a dual purpose of a Taivah & a Mishkan. Rabbi Chaim Dov Keller Zt”l had a Vort, that you can’t be a Bar Mitzva without being a Ben Torah.  R’ Elya Meir Bloch explains that the rainbow is the symbol that Hashem won’t destroy the world because just as a single ray of light pushes away all the darkness so too Hashem promised that as long as there is even just one ray of light (a Noach) he likewise won’t destroy the world.