Nazir 55: Does Air and/or Land Transfer Ritual Impurity?

Does air transfer tumah?  Or does earth transfer tumah?

Given that my understanding of the transfer of ritual impurity is very limited, I will walk through what I can.  Contact with a corpse transmits ritual impurity.  To a different degree, contact with a person who has tzaarat, sometimes called leprosy or a skin disease, or a zav/a, someone who has unusual genital discharge, also transmits ritual impurity.  A nazirite must not come into contact with any source of ritual impurity.  If that happens, then the nazirite must shave, bring offerings, and then continue his/her count of nazirut. 

A person might enter other lands, "the land of the Nations", under some sort of tent.  Rabbi Yosei ben Yehuda believes that tents serve as barriers against the tumah of the other lands.  Rabbi Yehuda HaNasi asserts that tents do not protect a person from tumah. might have the power to The rabbis consider whether  a moving tent is actually a tent.

The Gemara questions whether or not a box of utensils placed on a corpse in a moving tent might affect the protection of the tent or not.  It also asks about a person who enters the land of the nations in a box, a chest, a cabinet; a wagon, or a raft/boat.  The rabbis seem comfortable with considering such a person tahor, ritually pure, unless the person's head - or the majority of his/her body- was sticking out of the container.

We end with a very short amud (b).  We learn that if one's nazirut is interrupted by impurity (and then purification and offering and shaving), and at least thirty days are remaining of his/her vow of nazirut,  the nazirite is permitted to continue counting his/her days.  As long as thirty days of hair growth remain, the nazirut need not be extended.