User:H603sF/Dark materials

here we go is about "dark materials"

what is "dark materials"

let "M." as materials

let "D." as dark or minus

dark materials : (D.M.)

a opposite "M." of "M."

in the other words ,

by the "relative efficiency" (range from -1  to  +1)

when the efficiency get the minus area

we call it dark(or minus you know)

it is what D.M. is

just like

"-1"  +   "+1"    = 0

"D.M." +  "P.M." = 0

(P.S.   P.M.=Plus M. = M. we know)

