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Party Hole | National Geographic


Matt took me to the darkest part of the
mine where there’s no sound and no
natural light this is crazy it was so
awesome
okay I just got freaked out can I speak
frankly that’s really not my kind of
hole I get to dig whatever kind of hole
I want on this episode and if I’m
digging the hole I want it to be one
where I can kick back and chill out and
watch the world go by and not be plunged
into utter darkness ladies and gentlemen
this is called a party hole I designed
this hole by myself and then some of the
people were like David why do you call
it a party hole it’s just you there’s no
guests no one else can join you I don’t
like nicking small talk and I get
socially awkward so for me this is the
definition of a party me standing in a
hole all by myself I have to dig my hole
in the ground but there’s no way in a
million years I would ever dig through
Rock I don’t want to be dealing with
rocks I want to dig a hole in some nice
soft dirt so I wanted to find the best
possible dirt for hole digging I called
Peter Grothman who’s a soil biologist he
knows more than 50 facts about dirt
Peter what is dirt
well dirt is a mixture of a three
primary particles sand silt and clay and
we’d like to we’d like to split the soil
into different sizes which are
illustrated by these over here okay
there’s sand so here’s sand and these
are big ones like these golf balls and
then there’s silt which are medium-sized
particles like these and then there’s
clay particles which are super small
also for instance you can see sand and
you can feel it if you put it in your
hand you can feel the little grit in
there you feel the little grit and you
can actually even put a little bit on
your tongue whoa really and it goes like
that you can feel the grip
this is actually pure silt which is much
softer than Santa if you put it between
your fingers it doesn’t have any grip
clay come on now are the really small
ones and you can always tell if you have
clay in your soil does it make a ribbon
see how it makes a ribbon when you rub
it out like that and it holds together
this means it’s clay that means it’s
quite I couldn’t do this with sand no
way I want to dig a very particular type
of hole which is this hole right here
which one which one should I dig in it
has to be a mixture if it’s all sand
then it doesn’t stick together it all
falls apart the silk also is not going
to stick together and the clay is too
sticky this is a soil pyramid and this
is what scientists used to classify
different types of dirt and this stuff
in the middle with the mixture of sand
silt and clay is called loam so the best
soil for digging a hole is medium loam
medium low actually tastes pretty good
for dirt and I would say for a couple of
minutes I thought maybe I’ll just eat a
hole on the ground that’ll be good for
ratings could I eat this much dirt and
not get sick I I don’t think you would
get sick it passes through your it works
as an earthworm stew right earth for
earthworms that’s what they do they eat
soil they kind of tunnel through the
soil and there’s a lot of work on what
happens to the soils that passes through
the earthworm gut because the earthworms
have enzymes and they secrete enzymes
and the earthworm castings they call
them or the earthworm poop I’ve heard
enough I’ve this segment is over segment
is over
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