When putting a block right side or top or left side or down of the redstone block the block not powering by the redstone block.
When putting a block right side or top or left side or down of the redstone block the block not powering by the redstone block.
Redstone blocks, by design, do not power any adjacent solid opaque blocks, neither strongly nor weakly. See
http://minecraft.gamepedia.com/Block_of_Redstone