1)
What are the implications of "Tavu es ha'Izim"?
1.
Rashi, Seforno and Targum Yonasan: It refers to the specialized art of spinning the hair directly off the goats' backs. 1
1
Shabbos, 74b: Someone who does this on Shabbos however, is Patur, since it is not the way that one normally spins yarn.
2)
What was the point of spinning the hair directly off the goats' backs?