Redstone Basics

Redstone acts like a power source.  The signal can travel through 15 redstone.  To make the distance of the redstone travel longer you must have repeaters.  To place redstone right click it on a block while holding the redstone like any other block you place.  You cannot place redstone on sides of blocks, but the redstone you place will automatically connect to the redstone on a block below it.  Redstone cannot be places on non solid blocks.  Redstone can also be placed on some non solid blocks like glowstone and upside down half slabs.  It can only be placed on solid blocks.  Redstone can be powered by redstone torches, levers, buttons, tripwires, and pressure plates.