I'm sure that you're all aware over here at life's biggest questions we've got
quite the hankering for those complete and utter mind-bending enigmas of
physics that keep us up at night wondering how long we've got left before
they gobble up the entire universe and everything else with it and no I'm not
talking about Cthulhu I'm talking about black holes although it's not entirely
outside the realms of possibility that an eldritch gray old one is lurking just
behind the veil of the event horizon but that's a different thought entirely and
one I'd rather leave took comfortably in the far recesses of my mind no today
we're going to be peeling back the lid of the cosmos in a different kind of
dimensional matter hello Internet what's going on and once
again welcome back to the most inquisitive channel on YouTube life's
biggest questions as per usual I'll be your disembodied flowing voice
Jack Finch as today we curacy ask the question what's behind a black hole roll
clip
star more than three times the size of our Sun or to end its life with a
collapse before the curious among who that scene was from the incredible 2014
biopic of the legendary Stephen Hawking's life and work the theory of
everything where a young Hawking had just put two and two together based upon
the theory of Sir Roger Penrose and first began his Eureka moment about the
relationship between space time black holes the universe and well everything
and while it's important to note that while we've covered quite a few black
hole escapades already we're going to initially be paying a dues to some of
the greatest minds that physics has gifted us so far and answer this
question with a very brief proposition what's behind a black hole while based
on our current understanding of physics nothing at all no time no space just the
singularity the end of all things but as is the case with many things there may
be something more to it and theoretically speaking what lies beneath
these cosmic enigmas are the root of some of the greatest mysteries in our
universe now obviously you may be thinking behind a black hole as in
physically behind that's ridiculous how could you go
behind a literal puncture hole in the fabric of time and space and well the
quick answer is you're doing it right now because as we speak at the center of
a galaxy there's a supermassive black hole known as Sagittarius a star and
pretty much everything in the entire Milky Way galaxy from our point of view
is behind that black hole in a fashion so there's your answer what's behind a
black hole me and you and everyone thanks to the beauty of perspective all
right guys show's over I'll show myself out okay okay I'll regress because of
course that's a cop-out however because of that orbital effect in particular we
can actually bear witness to one of the most interesting and mind-bending events
in the universe where essentially if something is sufficiently luminous
enough such as a galaxy or a cluster of galaxies that then passes behind a black
hole from our observational position a phenomenon that occurs that is known as
gravitational lensing and here's where things get really really interesting as
the two objects pass between each eye that we as observers
would see the light of the luminous celestial object bend around the black
hole as it passed almost like a wave crashing against a tidal break and what
we then see is the immense mass of the black hole actually curving the
space-time around it so that the light from the distant luminous celestial
objects well the light that doesn't go straight
into the black hole that is curves around it as well before passing on
freely in fact gravitational lensing is often used as a sort of magnifying glass
in astronomy amplifying the light visibility of objects that are otherwise
too far to be observed through conventional technological means
essentially in respect to black holes in particular this effect only occurs
because there is nothing behind a black hole but that doesn't necessarily mean
what you think it may in fact it may be incredibly difficult for us to wrap our
brains around the fact that there is essentially not a thing as we know it
behind a black hole to the observable universe anyway after all if an object
of matter exists in the physical space of the universe no matter its physical
dimensions there has to be something behind it right
we know what's behind the moon we know what's behind an asteroid we know what's
behind the Tesla Roadster currently spinning its way across our solar system
they're three dimensional objects we know exactly where we stand with them as
well as all of the things that comprise the space between our earth and their
relative position in the cosmos so what about black holes them if they're not
three-dimensional objects as we know them then what are they
one-dimensional objects perhaps maybe something like an electron that would
make the most sense wouldn't it given the fact that an electron is a
one-dimensional point embedded into three-dimensional space well as far as
we can tell anyway the thing is is often said by physicists
that physics makes sense until you go into a black hole and that's where the
real paradox of this notion becomes apparent every single image of a black
hole that you've ever seen has been depicted in the exact same way and if
that's not already confusing enough then let me put it this way any image of a
black hole is a two-dimensional projection of a three-dimensional event
that's made to represent a zero dimensional mathematical Absolution
known as a singularity yeah exactly and if things weren't already
confusing enough black holes well technically speaking the event horizon
of the black hole our three-dimensional celestial objects but at the same time
they also fit the parameters of potentially being four dimensional
objects - in fact thanks of the scientific solution known as the sports
charred radius which dictates that the properties of space-time inside of a
black hole are entirely different than the rest of space we stumbled deeper
into the ever mind-boggling long grass that is string theory which suggests
that black holes could very likely exist on up to an 11 dimensional framework and
I'm not even going to try and take a guess and what lies behind that but
here's another curve ball that it's just mustered up enough escape velocity and
made out of the event horizon of this particular last biggest question because
very recently as you all may know our human species hit a homerun and we
actually captured a whole damn image of a black hole for the first time in
forever well kind of it was more like trying to take a photo from Earth of a
DVD on the moon but I it worked and it's probably one of the most important
discoveries in physics in a long long time perhaps though coded within its
pixels will lie the answer to the mind-bending spatial properties of black
holes and who knows maybe we'll know exactly what dimensional plane we're
looking at these things from in all likelihood it will probably just pose
many more questions than answers but hey that's the fun part
isn't it well there we have it a short long answer to the question what's
behind a black hole me and you the rest of the planet and who the hell knows
probably like at least seven more dimensions of even more questions yeah
that sounds about right if you've got any thoughts on the matter or even an
interesting insight into the mechanics of black holes then please let us know
your thoughts down in the comment section below
before depart from today's video though let's first take a quick look at some of
your more resounding remarks my own recent video what if you fell into
Jupiter oh that was good first up no Mane says I thought you said spice is
weird because of your accent long well no mane I actually get that a lot
spice is Spacey but is space spicy that's the real question isn't it and
finally Tootsie Wang says what if they's s star
that is named Jack ah that's a nice thought isn't it well there's quite a
few stars in the universe who know it's maybe one day one of them will name
itself Jack and it will become a disembodied flowing voice just like me
wait tonight's giveaway my origin story well on that now unfortunate that's all
we've got time for in today's video tip stick around all the way until the end
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subscribe out and not be seeing you in the next one as per usual having of this
body flowing voice Jack Finch you've been watching life's biggest questions
and until next time you take it easy