Rabbi Menachem Creditor explains the origins of Hanaukkah and the common traditions of the holiday.

The winter sport, Curling is all about friction. Players brush the ice to melt it to create a more slippery ground for the curling stone to slide upon.

Phil conducts an experiment in which he tries to spin a pencil on its tip. He fails initially but is successful after sticking it through a circle of cardboard. He explains why it works and mentions the "smart" way to describe the phenomenom: the conservation of angular momentum.

King Arthur's group remembers they have the Holy Hand Grenade available as a weapon. When they get the Grenade, they are confused on how to use it. They consult the Book of Armaments, which explains in unnecessarily verbose detail how to use the Grenade.

Molly edits her video tutorial about how she trained her dog to find lost keys. This demonstrates the use of operant conditioning and the value of praise and reward for training pets.