This episode of Does it Fly is presented by ScreenUK. ScreenUK is a free discovery platform celebrating the very best of UK-produced film, television, animation and gaming and sharing it with audiences around the world. ScreenUK is the go-to place to discover your next favorite movie, show, or game and features tons of exclusive behind-the-scenes interviews and all the info you need to find out how and where to watch or play your newest obsessions, wherever you are in the world. Make ScreenUK.org your next stop.It’s “time” (sorry) for a unique piece of sci-fi technology from the legendary Doctor Who! TARDIS stands for “Time and Relative Dimension in Space.” The Doctor is a Time Lord, from the planet Gallifrey, and a TARDIS is a technology that allows Time Lords to travel through space and time while having all manner of timey-wimey adventures. And yet, despite the name of our show, TARDISes do very little actual flying. They are designed to dematerialize and re-materialize in the desired place in space and time. Though there are episodes where audiences see the TARDIS doing what is more akin to traditional flying, doing that too often can damage them.TARDISES have a Chameleon Circuit that allows them to blend into their surroundings.  The Doctor’s TARDIS has a rather unique shape as an old police phone box, but that’s not their standard form. Instead, the Doctor’s famous TARDIS got stuck this way while disguising itself as something commonplace using that Chameleon Circuit. They are also, perhaps most famously, bigger on the inside than they are on the outside (if this concept gives you a headache, don’t worry). In this episode, Hakeem and Tamara examine just how feasible it is for the TARDIS to traverse both time and space in such a unique fashion as well as a number of its other unique features. In the process, they discuss some key episodes in Doctor Who history, as well as the scientific concepts that do (or don’t) power the TARDIS.Hakeem and Tamara explored a number of concepts to try and figure out what makes the TARDIS tick in this episode.FURTHER READINGBlack Holes“There's a lot of brilliant physicists who have been studying this for a very long time. When you study black holes, basically you're studying the geometry of space-time. Black holes,  not only are they bigger on the inside than the outside, but they grow continuously with time on the inside. So even if they shrink down and evaporate on the outside,  the inside volume doesn't change.” White Holes“Armies have tried to get inside the TARDIS and they can’t, because it’s impenetrable. A white hole is a time-reversed black hole…Physicists…came up with this idea of a white hole…because they wanted to look at wormholes. How do you do interdimensional travel? They realized that if you have a time-reversed black hole, you form this thing called a white hole. So just like nothing can come out of a black hole, nothing can go into a white hole.The Totalitarian Principle“Any physical process that's not strictly forbidden from occurring by the laws of physics must occur. Unless the laws of physics say it can't happen, it must happen.”SUGGESTED VIEWINGSince the show has been around for 60 years, we get that jumping into Doctor Who can feel a little intimidating. And when you factor in the fact that the TARDIS has been there from the beginning and appears in pretty much every single episode, it can be downright overwhelming. So if you’re someone who’s always been curious about Doctor Who and just wondering where to start or  a fan who wants to revisit the basics as well as some of the episodes we watched to get ready for this week’s discussion, allow us to point you at a few of our favorites. For simplicity’s sake, we’re keeping our recommendations to the newer series that began in 2005, but if you’re ready to dive deeper, you can’t go wrong with Tom Baker’s long-running (and perhaps most iconic in the show’s history) run as the Doctor in the 1970s. But all series/season cod