Gemarah Pesachim #85

Pesachim 20a-20b: Why a Vessel Can't Contaminate Another Vessel

By Earthenware Airspace Is Considered the Very Vessel. Why?

Gemarah Pesachim #83

Pesachim 19b-20a: Oy, Did I Touch the Needle?

Dissecting the Testimony of Reb Chanina About the Impure Needle Found in the Flesh of an Animal

Gemarah Pesachim #82

Pesachim 19a-19b: The Needle, the Meat, the Knife and the Hands

The Day the Sages Decreed That Hands Are Impure, and Liquids Can Contaminate Vessels

Gemarah Pesachim #81

Pesachim 19a: How Do We Get From the Third Generation of Tumah to the Fourth?

Rashi Analyzes How the Different Tanaim Get to the Fourth Generation Receiving Tumah

Gemarah Pesachim #80

Pesachim 19a: As the Holiness Ascends, Unity Becomes Easier

“One Spoon”: Everything in the Spoon Becomes One

Gemarah Pesachim #79

Pesachim 18b-19a: Who Will Remove the Dust From Your Eyes Reb Yochanan Ben Zakai?

How We Know That the Teacher Reb Akiva and the Student Reb Yosi Disagree With Each Other

Gemarah Pesachim #78

Pesachim 18b-19a: How Did We Get From the Second Generation of Tumah to the Third and Fourth?

The Halachik Analysis Which Compelled the Sages to Conclude That Tumah Does Not Travel Beyond Four Generations

Gemarah Pesachim #77

Pesachim 18b: The Biblical Source for Food Not Contaminating Other Food

Why the Torah Sometimes Explicitly Teaches That Which Can Be Derived via Kal Vachomer

Gemarah Pesachim #76

Pesachim 18a-18b: Dissecting the Pesukim Concerning Food and Liquid Which Become Impure

When Food Touches Food or Liquid Touches Liquid -- the Tumah Does Not Travel

Gemarah Pesachim #75

Pesachim 18a: The Strange Rules Concerning Earthenware Pottery

The Mole Rat Fell Into the Bowl, Then the Challah Fell Into the Bowl...

Gemarah Pesachim #74

Pesachim 17b-18a: The Cow Drank Impure Water, Then It Was Slaughtered, Is the Meat Pure?

The Impure Wine Spilled Into Your Leather Bag -- Is the Bag Tamei?