Originally Posted by daveyboy7472:
“Yes, I often think it as forerunner of the sonic screwdriver. There's no doubt if he'd had the screwdriver when the monk locked him out, it would have proved just the ideal tool to get back in!
”
“Yes, I often think it as forerunner of the sonic screwdriver. There's no doubt if he'd had the screwdriver when the monk locked him out, it would have proved just the ideal tool to get back in!
”
In the Dalek Masterplan, the Doctor's ring is used to refract light (perhaps sunlight? can't remember offhand) into the Tardis lock. So, presumably, the lock uses uses some type of light-frequency ident mechanism.
