in today’s video we’ve got a few fun
experiments to see what happens when we
burn things in liquid oxygen guys in a
previous video you saw us try to burn
diamonds and we succeeded and we had the
help of Alexander Alexander is with us
again he’s our go-to science guy who
also tells us like oh you’ll blow the
house up if you try that so he kind of
keeps us in check while also encouraging
us to do more fun stuff it’s just the
kind of influence we like to have around
he tells us how to safely do dangerous
things for those who may not remember
you whatever what are you studying these
days
I’m studying metallurgical engineering
and I’m almost done with my degree and
then hopefully going to graduate school
in in what was that the the nuclear
engineering nuclear engineering or
material science engineering so he knows
a lot of things which is why we like to
have him around and he’s the one who
sort of introduced us to this idea so we
wanted to have him on the show to show
us some of his favorite things to put in
liquid oxygen let’s get started here’s
the basic idea we’ve got liquid oxygen
and we’ve got a few different things
that should burn fairly well and we want
to see if we can make them burn really
well by immersing them in liquid oxygen
so we’ve got oxygen flowing into this
coil right now and pretty soon right
then we’re going to get a little stream
of liquid oxygen coming out the other
end so we’re just going to wait for this
cup to fill up and then we can do some
fun experiments okay the first recipe we
call for about a cup of liquid oxygen on
the graham cracker here’s one I prepared
earlier so we’ve got this graham cracker
very thoroughly marinated for lack of a
better word in the liquid oxygen we’re
going to put it down on the concrete and
then Nate would you do the bake at 3,000
I’m already thrilled in case you’re
curious that is not how normal gram
crackers burn
should we have a side-by-side for
comparison we can roll eke out the heat
that that puts off yeah oh yeah that’s
amazing
I love it here’s how normal Grande
Packers burned big towns
I mean it it burned as long as the
torches it’s probably possible to
actually light it on fire I think that’s
a charge let’s get our grams out all
right here is one graham cracker I hear
that’s just how I like my s’mores I’m
thrilled hmm oxygen
so this is the control about half of
this probably more like two-thirds of
this cracker is soaked in liquid oxygen
and the other third is not so you can
see that that half is very rapidly
burning and then probably when it gets
to about that boundary it’ll stop
burning quite as vigorously there we go
so you can see that once all of the
liquid oxygen has burned away the
cracker is significantly less flammable
and behaves you know like a graham
cracker I should also point out that the
reason this is working so well is the
reaction that we would commonly call
burning is really just a disguised
chemical reaction it’s very high speed
and high energy oxidation so when we add
more oxygen it happens faster and when
it happens faster it can go more
completely and give us a lot more energy
so obviously soaking graham crackers in
liquid oxygen and lighting them off
wasn’t dangerous enough so let’s try
some sparklers it seems like a great
idea all right so since we’re not
exactly sure what this is going to do
what kind of reaction it’s going to have
when we put it in the liquid oxygen we
want to make sure that we’re being as
safe as we can be within reason
so since these have a little steel stem
on them we just took a scrap piece of
2×4 and a magnet and if we stick it on
the end you can see that we can kind of
suspend this and then we can be as far
away as this piece of wood allows us to
be and still have the desired reaction
doesn’t seem to make much difference to
it honestly no it’s not really happy
much of an effect one way or the other
it’s just breaking the cup it’s breaking
the cup of it also it it tainted our
liquid oxygen can you see that yeah it
looks like am I crazy or was that longer
do you see the little beads of molten
metal there I think it actually melted
the stick here was one that burned with
out that wow we there we go so a
significant amount of the little handle
on it we’ve done this several times now
well not this particularly thing but
we’ve dropped lots of different things
into the liquid oxygen in one of these
cups this cup is just shattered to bits
alright
cotton burns everybody knows that this
is a piece of cotton cloths so for a
control test fire there you go
so that’s how a normal piece of cotton
cloth would burn so your t-shirt that’s
how that would burn okay
whoa there we go huh and then just all
went up at once oh yeah very short
high-intensity reaction yeah not a long
lifespan there but really cool this time
we’re just going to get this burning
we’re gonna have liquid oxygen in the
glass we’re gonna get this burning and
just drop it in
and it’s gone very nice it’s just gone
yeah oh there’s nothing left
okay so what we’re going to do right now
is very similar setup to what we did
before with the sparkler steel wool also
reacts very well with oxygen if you’ve
ever put a 9-volt battery on it lit a
small amount on fire and then blown on
it you know that the more air you supply
to it the faster it burns so our
question is what’s going to happen if we
put it in an environment that is 100
percent oxygen so again since we’re not
exactly sure what this is going to do
and we suspect it’s going to be quite
energetic we are going to take this and
sensitives magnetic use our little
magnet jig here and just pull it it’ll
fall into that bowl full of liquid
oxygen after it’s been lit on fire and
hopefully we will get a very exciting
look at all of the little bits of molten
member coalesced edible that bowl is
all right so Alex what’s the next plan
well the next plan is we’re going to
scale it up a little bit so we’ve
previously been doing just maybe a few
tens of grams of this steel wool here
and we’re going to do two entire pads of
it so according to my preliminary
calculations this should release
approximately the same amount of energy
that’s required to light a standard
light bulb for 40 minutes and we’re
going to be doing that in a very short
period of time so we’re expecting this
to be very energetic we’re going to use
the magnet rig but since it’s a little
bit windy out here we’ve modified it so
instead we’re just going to lower it in
on a string but I’ll still be back in
safety and we should get some really
nice footage of the reaction and this
cup is ceramic non-star foam yeah so
hopefully it will last for long enough
[Laughter]
oh there’s a puddle of nice is it just
liquid steel that’s just steel that is
all right so one thing that I’ve always
heard as kind of a danger of liquid
oxygen is and this is true it makes
everything extremely flammable one of
the common anecdotes that they use is
let’s say you’re pouring it in a room
with carpet and a little bit spills on
the floor and then there’s a static
shock the carpet might ignite and burn
very rapidly I’ve never actually seen
that done I believe that carpet will
become extremely flammable with liquid
oxygen but I actually have a little test
square of carpet here that I would like
to see if that anecdote is true so let’s
give it a try so after some careful
consideration we’ve decided that since
this is made of polyester it’s probably
going to have a much more energetic
reaction even than all the other
experiments we’ve done for that reason
we are going to use the sparkler on the
end of this PVC pole to ignite it and
that way we will be a safe distance away
from any explosions which may occur so
I’m gonna light the sparkler and then
I’m very quickly gonna start pouring
liquid oxygen over the carpet square
then I’ll back a good ways away
at which point Alexander will will prod
the oxygen soaked carpet square with the
all right three two one there’s no
carpet left this is against is the
backing on the carpets which apparently
is not made of the same material as the
rest of the carpet wow that was that was
amazing that was right as it turns out
the anecdote is true if you pour liquid
oxygen on carpet it becomes extremely
extremely flammable I don’t think that
even classifies this flammable that
all right that was that was so cool a
million thanks again to Alexander and to
kuma films for those unbelievable
slow-mo shots it looks so good guys cool
films got some cool stuff go check out
their channel they look beautiful guys
thanks for watching click up there to
check out our most recent video team rocket blasting off again
experiments to see what happens when we
burn things in liquid oxygen guys in a
previous video you saw us try to burn
diamonds and we succeeded and we had the
help of Alexander Alexander is with us
again he’s our go-to science guy who
also tells us like oh you’ll blow the
house up if you try that so he kind of
keeps us in check while also encouraging
us to do more fun stuff it’s just the
kind of influence we like to have around
he tells us how to safely do dangerous
things for those who may not remember
you whatever what are you studying these
days
I’m studying metallurgical engineering
and I’m almost done with my degree and
then hopefully going to graduate school
in in what was that the the nuclear
engineering nuclear engineering or
material science engineering so he knows
a lot of things which is why we like to
have him around and he’s the one who
sort of introduced us to this idea so we
wanted to have him on the show to show
us some of his favorite things to put in
liquid oxygen let’s get started here’s
the basic idea we’ve got liquid oxygen
and we’ve got a few different things
that should burn fairly well and we want
to see if we can make them burn really
well by immersing them in liquid oxygen
so we’ve got oxygen flowing into this
coil right now and pretty soon right
then we’re going to get a little stream
of liquid oxygen coming out the other
end so we’re just going to wait for this
cup to fill up and then we can do some
fun experiments okay the first recipe we
call for about a cup of liquid oxygen on
the graham cracker here’s one I prepared
earlier so we’ve got this graham cracker
very thoroughly marinated for lack of a
better word in the liquid oxygen we’re
going to put it down on the concrete and
then Nate would you do the bake at 3,000
I’m already thrilled in case you’re
curious that is not how normal gram
crackers burn
should we have a side-by-side for
comparison we can roll eke out the heat
that that puts off yeah oh yeah that’s
amazing
I love it here’s how normal Grande
Packers burned big towns
I mean it it burned as long as the
torches it’s probably possible to
actually light it on fire I think that’s
a charge let’s get our grams out all
right here is one graham cracker I hear
that’s just how I like my s’mores I’m
thrilled hmm oxygen
so this is the control about half of
this probably more like two-thirds of
this cracker is soaked in liquid oxygen
and the other third is not so you can
see that that half is very rapidly
burning and then probably when it gets
to about that boundary it’ll stop
burning quite as vigorously there we go
so you can see that once all of the
liquid oxygen has burned away the
cracker is significantly less flammable
and behaves you know like a graham
cracker I should also point out that the
reason this is working so well is the
reaction that we would commonly call
burning is really just a disguised
chemical reaction it’s very high speed
and high energy oxidation so when we add
more oxygen it happens faster and when
it happens faster it can go more
completely and give us a lot more energy
so obviously soaking graham crackers in
liquid oxygen and lighting them off
wasn’t dangerous enough so let’s try
some sparklers it seems like a great
idea all right so since we’re not
exactly sure what this is going to do
what kind of reaction it’s going to have
when we put it in the liquid oxygen we
want to make sure that we’re being as
safe as we can be within reason
so since these have a little steel stem
on them we just took a scrap piece of
2×4 and a magnet and if we stick it on
the end you can see that we can kind of
suspend this and then we can be as far
away as this piece of wood allows us to
be and still have the desired reaction
doesn’t seem to make much difference to
it honestly no it’s not really happy
much of an effect one way or the other
it’s just breaking the cup it’s breaking
the cup of it also it it tainted our
liquid oxygen can you see that yeah it
looks like am I crazy or was that longer
do you see the little beads of molten
metal there I think it actually melted
the stick here was one that burned with
out that wow we there we go so a
significant amount of the little handle
on it we’ve done this several times now
well not this particularly thing but
we’ve dropped lots of different things
into the liquid oxygen in one of these
cups this cup is just shattered to bits
alright
cotton burns everybody knows that this
is a piece of cotton cloths so for a
control test fire there you go
so that’s how a normal piece of cotton
cloth would burn so your t-shirt that’s
how that would burn okay
whoa there we go huh and then just all
went up at once oh yeah very short
high-intensity reaction yeah not a long
lifespan there but really cool this time
we’re just going to get this burning
we’re gonna have liquid oxygen in the
glass we’re gonna get this burning and
just drop it in
and it’s gone very nice it’s just gone
yeah oh there’s nothing left
okay so what we’re going to do right now
is very similar setup to what we did
before with the sparkler steel wool also
reacts very well with oxygen if you’ve
ever put a 9-volt battery on it lit a
small amount on fire and then blown on
it you know that the more air you supply
to it the faster it burns so our
question is what’s going to happen if we
put it in an environment that is 100
percent oxygen so again since we’re not
exactly sure what this is going to do
and we suspect it’s going to be quite
energetic we are going to take this and
sensitives magnetic use our little
magnet jig here and just pull it it’ll
fall into that bowl full of liquid
oxygen after it’s been lit on fire and
hopefully we will get a very exciting
look at all of the little bits of molten
member coalesced edible that bowl is
all right so Alex what’s the next plan
well the next plan is we’re going to
scale it up a little bit so we’ve
previously been doing just maybe a few
tens of grams of this steel wool here
and we’re going to do two entire pads of
it so according to my preliminary
calculations this should release
approximately the same amount of energy
that’s required to light a standard
light bulb for 40 minutes and we’re
going to be doing that in a very short
period of time so we’re expecting this
to be very energetic we’re going to use
the magnet rig but since it’s a little
bit windy out here we’ve modified it so
instead we’re just going to lower it in
on a string but I’ll still be back in
safety and we should get some really
nice footage of the reaction and this
cup is ceramic non-star foam yeah so
hopefully it will last for long enough
[Laughter]
oh there’s a puddle of nice is it just
liquid steel that’s just steel that is
all right so one thing that I’ve always
heard as kind of a danger of liquid
oxygen is and this is true it makes
everything extremely flammable one of
the common anecdotes that they use is
let’s say you’re pouring it in a room
with carpet and a little bit spills on
the floor and then there’s a static
shock the carpet might ignite and burn
very rapidly I’ve never actually seen
that done I believe that carpet will
become extremely flammable with liquid
oxygen but I actually have a little test
square of carpet here that I would like
to see if that anecdote is true so let’s
give it a try so after some careful
consideration we’ve decided that since
this is made of polyester it’s probably
going to have a much more energetic
reaction even than all the other
experiments we’ve done for that reason
we are going to use the sparkler on the
end of this PVC pole to ignite it and
that way we will be a safe distance away
from any explosions which may occur so
I’m gonna light the sparkler and then
I’m very quickly gonna start pouring
liquid oxygen over the carpet square
then I’ll back a good ways away
at which point Alexander will will prod
the oxygen soaked carpet square with the
all right three two one there’s no
carpet left this is against is the
backing on the carpets which apparently
is not made of the same material as the
rest of the carpet wow that was that was
amazing that was right as it turns out
the anecdote is true if you pour liquid
oxygen on carpet it becomes extremely
extremely flammable I don’t think that
even classifies this flammable that
all right that was that was so cool a
million thanks again to Alexander and to
kuma films for those unbelievable
slow-mo shots it looks so good guys cool
films got some cool stuff go check out
their channel they look beautiful guys
thanks for watching click up there to
check out our most recent video team rocket blasting off again
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