The TARDIS can travel all of time and space, everything that ever happened or ever will... except it frequently turns up at the wrong place or time. But even with these mishaps, how does it measure up against our best instruments of space and time? W: ****** T: ****** F: ****** 01:11 Accuracy vs Precision and Relative Precision 02:17 Atomic Clocks and the Definition of the Second 03:40 LIGO and Spektr-R, our Best Instruments for Measuring Space 05:20 How big is the he universe? TARDIS precision in space 07:42 When will the universe end? TARDIS precision in time Links for more information The Doctor's TARDIS ****** ****** TARDIS on Street View ****** Real life TARDIS? ****** Our Best Clock ****** ****** Spektr-R/RadioAstron and the Highest Resolution Astronomical Image ****** ****** ****** LIGO ****** ****** Curvature of the Universe ****** ****** Heat Death of the Universe ****** ****** Music by SP3CtruM