Board Thread:Theories and Speculation/@comment-24824859-20150704165201/@comment-6769189-20150717163130

it does, he story stated that the energy produced form the cells of the body aare the physical energy... Kenetic and potential energy are also physical energy. this is nature energy... Kenetic and potential energy are also physical energy. Heat is and light are also physical energies

yes, but the problem is that there wasnt chakra to begin with since the very basics of its components are missing, it is as if atoms suddenly get created without protons... it is impossible... Except there was chakra. Obito died with some amount of chakra in him. He wasn't necessarily producing more after he died. Hagoromo traveled the world for centuries as chakra

The eyes work like this. Uchiha brain chakra unlocks Sharingan in an Uchiha eye. After that, all that is need for the Sharingan to activate and grow is to feed it some chakra.

This brain chakra most likely won't affect a regular eye transplanted into an Uchiha.

An Uchiha eye that hasn't unlocked the Sharingan would be just a normally eye to a non-Uchiha.

Obito and Kakashi did something a little different. It was more like Naruto borrowing Kuramas chakra. Obito also had 6 Paths Chakra

I would guess more of Susanoos strain goes to the eye area.