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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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
