Tell us about yourself!
The problem is that not even scientists don't know how to produce graphene oxide in such amounts. For further information :http://www.graphene-battery.net/graphene.htm#howtomakegraphiteoxide
Of course you can !! Burn some wood !! And then you do this : https://www.buyactivatedcharcoal.com/how_to_make_a...And repeat you chemistry class :) It's just a friendly advise...
Could you please be a little bit more explicit ? I cannot understand your question.
It's simple : when it turs left, only the right "track" ( side ) moves, and when it turns right, the same with the left side.