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Closed Timelike Curves

Closed Timelike Curves

For 55 years, Doctor Who has chronicled the adventures across time and space of the Doctor and his/her human companions. Their means of transportation was a big blue box known as the TARDIS (Time and Relative Dimension in Space) that can take them anywhere, and anywhen, they want to go.

TARDISes are more magical than the tech of Star Trek. There does seem to be some sort of delay on the way — it’s more hyperdrive than jump drive. But essentially the TARDIS disappears here, flies through the Time Vortex, and reappears there. 


88 reads


The Einstein–Rosen Bridges

An Einstein-Rosen bridge is a shortcut through space caused by the warping of spacetime. Massive objects like stars or black holes bend time and space like a bowling ball on a trampoline. A massive enough object could bend spacetime to create a connection between two otherwis...


209 reads


Hyperspace is best understood as a sub-region of our real space where the same physical laws don’t apply. Hyperspace has no theoretical basis like Einstein-Rosen bridges or warp drives.

This universe doesn’t seem to allow faster-than-light travel. The solution: just don...


112 reads

Wormhole Representations

Wormhole Representations

  • The entrance to a wormhole has often been represented as a tube, which makes sense given the name. But it’s also inaccurate. Interstellar, in one of its most intense scenes, got it right. From our perspective in 3-D space, a wormhole should look like a sphere.
  • Wormho...


198 reads


Imagine that! It never occurred to me to think of space as the thing that was moving!



202 reads

Professor Brand - Interstellar

Stepping out into the universe... we must confront the reality of interstellar travel. We must reach far beyond our own lifespans.



882 reads

Warp Engines

Warp Engines

Warp technology is synonymous with the Star Trek series.

Like an Einstein-Rosen bridge, warp technology skirts around the impossibility of accelerating a ship past the speed of light. Instead, a warp drive bends space itself. It compresses space in front of the cra...


159 reads

The Possibility Of Warp Engines

  • Warp technology may be possible in reality.
  • In 1994, theoretical physicist Miguel Alcubierre proposed a means of FTL space travel consistent with general relativity. Inspired by Star Trek, Alcubierre described an engine creating an energy field with lower density than the vacuum of s...


141 reads

All of time and space; everywhere and anywhere; every star that ever was. Where do you want to start?



130 reads

Theories On Travelling To Your Past

  • In 2013, physicists Benjamin K. Tippett and David Tsang published a paper proposing a theoretical means of creating an actual retrograde-capable time machine: a way to travel to your own past. 
  • Tippett and Tsang describe a bubble of spacetime containing a time-travel...


92 reads

Jump Drives

Jump Drives

The Jump Drives in Battlestar Galactica made interstellar teleportation possible with virtually no delay. Both human ships and their Cylon counterparts used FTL drives. We were also told that when a ship jumps, it warps the space around it and can damage other nearby vessels.

As wi...


91 reads




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Delayed sleep phase disorder occurs when there is a delay in the major sleep episode relative to the desired clock time. As a result, the person has a hard time falling asleep and getting up at a normal time. Often people with this problem will use


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