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The sonic screwdriver is a multifunctional fictional tool in the British science fiction television programme ''Doctor Who'' and its spinoffs, used by the Doctor. Like the TARDIS, it has become one of the icons of the programme, and spin-off media such as ''The Sarah Jane Adventures'' and ''Torchwood'' have replicated its functions in devices such as the sonic lipstick, sonic blaster, sonic pen, sonic probe and sonic modulator, and the most recent, sonic sunglasses, featured by the 12th Doctor. The sonic screwdriver was first introduced in 1968 in the story Fury From the Deep, and used twice more (The Dominators & The War Games) during the Second Doctor's tenure. It became a popular tool for the Third Doctor and Fourth Doctor. It was finally written out of the series in 1982 due to the limitations it caused when writing for the show. It then featured briefly in the 1996 ''Doctor Who'' television movie, before making a full return in the 2005 continuation of the series. Throughout the programme, there have been many different versions of the sonic screwdriver, as with subsequent Doctors the design of it was changed. It has also been destroyed on a number of occasions, thus leading to the introduction of the next model. Not all iterations of the Doctor have used the sonic screwdriver on screen; the Fifth Doctor in fact opted not to replace his after it was destroyed. The Twelfth Doctor manages to lose his sonic screwdriver to the creator of the Daleks, Davros, after lending it to him when he was a child. Whether or not the Doctor is to receive a new model of his tool is yet to be confirmed by BBC, the Doctor currently uses sonic sunglasses. ==Functions== The functions of a sonic screwdriver are: * Lock picking (with the exception of a wooden lock; most used function of the series, and with the 11th doctor, the sonic screwdriver gaining the ability to open deadlocks.) * Burn and cut all kinds of substances * Amplify sound-waves and the power of an X-ray machine beyond its normal capacity * Disarm weapons (in later models) and electronics * Flashlight * Intercept and conduct teleportation * Dye eyeglass lenses to transform them into sunglasses * Microphone (provided it is connected to an audio amplifier) * Detect and review signals * Conducting medical scans * Remotely controlling the TARDIS and other devices * Tracking alien life * Using red setting or dampers * Control the properties of atoms and molecules on a small scale * Operate computers, whether their origin is alien or human * Provide Geo-location * Get cash from an Automated teller machine * Light candles * Modification of a mobile phone * Disclosure and deactivating camouflage * Destruction of Weeping Angels * Disarm Robotics * Scan and classify matter * Create an "acoustic corridor" for speaking with someone far away * Tighten and loosen screws Aside from being a tool, the sonic screwdriver can be used and considered as a defensive weapon, which is effective for a few types of assault weapons, but not designed to kill or injure living things as the only way it can really injure a creature is by emitting painful bursts of sound. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Sonic screwdriver」の詳細全文を読む スポンサード リンク
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