"Doomsday" (2006), the Doctor states that the sonic screwdriver does not kill, wound or maim; however, it is sometimes brandished in a threatening manner, such as in "The Christmas Invasion" (2005), "The Impossible Planet" (2006), "The Runaway Bride" (2006), "The Lazarus Experiment" (2007), "The Day of the Doctor" (2013), and The Infinite Quest (2007). In "World War Three" (2005), when confronted by a group of Slitheen, the Doctor threatens to "triplicate the flammability" of a bottle of port wine with the sonic screwdriver, though one of the Slitheen realises he is bluffing. In "Closing Time" (2011), ringed energy beams are seen emitted from the device, giving it a more weapon-like appearance, particularly when used to disable a weakened Cyberman at a distance. In "Smith and Jones", the sonic screwdriver burns out after the Doctor uses it to amplify the radiation output of a hospital X-ray machine. In the "Series Three concept Artwork Gallery", when referring to the burnt out sonic screwdriver, Peter McKinstry says "the green crystal structure visible under the shattered dome refers back to the TARDIS console crystal. It's the same technology – the TARDIS's little brother." Though initially saddened at the loss of the screwdriver, the Doctor obtains a new one at the conclusion of the episode. The sonic screwdriver is unable to open a "deadlock seal", used as a plot device to prevent an easy solution. Russell T Davies once mentioned that he would never make the sonic screwdriver the solution to an episode. In "Silence in the Library" (2008), while trying to open a wooden door, the Doctor tells Donna that the sonic screwdriver won't work because the door is made of wood, a fact later restated in "The Hungry Earth" (2010); when Rory complains about this, the Doctor counters to not "diss the sonic." The sonic screwdriver's inability to work on wood is clarified in "In the Forest of the Night" (2014), when the Doctor states that the sonic screwdriver works by manipulating the moving parts in various machinery: since plant tissue lacks said moving parts, it is unaffected by the sonic screwdriver. In "The Parting of the Ways" (2005), the Doctor mentions that when Emergency Program One was activated, the sonic screwdriver would receive a signal from the TARDIS. In "Forest of the Dead" (2008), he claims that a few hair-dryers can interfere with the device, though he states that he is "working