0:00:00.000,0:00:03.070
[Music]

0:00:05.070,0:00:08.800
[Music]

0:00:08.800,0:00:11.780


0:00:11.780,0:00:20.240
[Music]

0:00:20.240,0:00:21.840
whoa so

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it's not the sound that you want to hear

0:00:23.519,0:00:25.060
when you're out climbing

0:00:25.060,0:00:29.119
is it bad if I scream behind the camera?

0:00:29.279,0:00:32.800
how fuzzy is too fuzzy

0:00:32.800,0:00:34.880
this is the rope that i used for about

0:00:34.880,0:00:37.680
two years of intense climbing

0:00:37.680,0:00:40.000
or at least this is the end of this rope

0:00:40.000,0:00:42.239
if i compare to the middle this is how

0:00:42.239,0:00:45.039
the middle of the same rope looks

0:00:45.039,0:00:47.200
and as you can see it's a huge

0:00:47.200,0:00:49.039
difference

0:00:49.039,0:00:51.760
so the question is should i worry about

0:00:51.760,0:00:54.079
this fuzziness or another question that

0:00:54.079,0:00:57.360
i see climbers disagree a lot on is if i

0:00:57.360,0:01:00.160
can squeeze my rope like this does it

0:01:00.160,0:01:02.800
mean that inside core strands are

0:01:02.800,0:01:04.500
damaged or no

0:01:04.500,0:01:07.777
so to avoid breaking my back on homemade

0:01:07.777,0:01:10.152
experiments

0:01:10.152,0:01:12.560
yeah as some of you noticed

0:01:12.560,0:01:14.240
it can be quite stressful

0:01:14.240,0:01:16.960
so not this time. This time i decided to

0:01:16.960,0:01:19.920
reach out to Mammut and ask if by any

0:01:19.920,0:01:22.479
chance i could come over and nerd with

0:01:22.479,0:01:23.740
their engineers

0:01:23.740,0:01:24.830
how dangerous is this?

0:01:24.830,0:01:26.740
(laughs) we will find out

0:01:26.740,0:01:28.970
so this is a product developer from

0:01:28.970,0:01:30.080
Mammut

0:01:30.080,0:01:32.560
and you said you're an expert in textiles

0:01:32.560,0:01:34.044
would you whip on this?

0:01:34.044,0:01:36.200
(uncomfortable noises)

0:01:37.200,0:01:39.200
can we destroy this rope? I would say the

0:01:39.200,0:01:41.920
core's joints won't fail if it's a normal

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sport climbing fall

0:01:42.920,0:01:44.500
within the first fall?

0:01:44.500,0:01:46.079
no no no not the first fall.

0:01:46.079,0:01:47.569
Would you whip on this?

0:01:47.569,0:01:48.739
Oh yes definitely.

0:01:48.739,0:01:51.600
How many times?

0:01:51.600,0:01:54.000
So this rope is not the same rope that

0:01:54.000,0:01:56.640
we used in an experiment. That one was a

0:01:56.640,0:01:58.980
little bit worse than this

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and it kind of died.

0:02:00.620,0:02:02.060
Can ropes die?

0:02:02.060,0:02:04.060
Anyway the goal was to find out what

0:02:04.060,0:02:06.719
happens if you take a huge fall

0:02:06.719,0:02:09.520
and this soft spot hits on your

0:02:09.520,0:02:10.560
quickdraw

0:02:10.560,0:02:13.360
exactly on the peak force and by the way

0:02:13.360,0:02:16.239
this video is not sponsored but in case

0:02:16.239,0:02:18.319
you don't know mammut is one of the

0:02:18.319,0:02:21.440
oldest companies making climbing ropes

0:02:21.440,0:02:23.760
so they have some serious knowledge

0:02:23.760,0:02:27.059
about that so I wanted to know everything.

0:02:27.059,0:02:28.720
Let's get nerdy! I have a

0:02:28.720,0:02:31.120
bunch of questions from me and my

0:02:31.120,0:02:31.850
followers

0:02:31.850,0:02:32.830
Sounds great!

0:02:32.830,0:02:34.299
Ah. You're probably gonna add

0:02:34.299,0:02:35.519
10 000 more questions

0:02:35.519,0:02:36.400
I'm sorry

0:02:36.400,0:02:38.480
and by the way the questions that you

0:02:38.480,0:02:39.840
guys sent

0:02:39.840,0:02:40.959
had some

0:02:40.959,0:02:43.879
serious sense of practicality

0:02:43.879,0:02:47.599
a cat pees on my rope how bad is that?

0:02:47.599,0:02:50.959
Or a dog peed on my rope how bad is that?

0:02:50.959,0:02:53.200
If you have a dry rope

0:02:53.200,0:02:55.480
we test it with human pee

0:02:55.480,0:02:57.570
because i mean if you're on a multipitch

0:02:57.570,0:02:58.460
and you have to go

0:02:58.460,0:03:00.400
so you actually did the testing on this?

0:03:00.400,0:03:01.599
yes and

0:03:01.599,0:03:04.480
the answer is no it's not dangerous.

0:03:04.480,0:03:07.680
I wonder if cats pee or dog's pee is more

0:03:07.680,0:03:09.762
aggressive than a human pee?

0:03:09.762,0:03:13.180
hey let's go do some science

0:03:13.180,0:03:15.350
so this is where the rope testing magic

0:03:15.350,0:03:17.439
happens and this is where you get those

0:03:17.439,0:03:19.860
six seven eight or whatever falls on the

0:03:19.860,0:03:20.629
rope.

0:03:20.629,0:03:21.639
Exactly yeah.

0:03:21.639,0:03:22.359
Statistics.

0:03:22.359,0:03:24.650
The scenario is like really really hard

0:03:24.650,0:03:28.799
like we have a fall factor of around 1.7

0:03:28.799,0:03:30.879
we test the ropes with the 80 kilogram

0:03:30.879,0:03:33.120
steel mass which is like super static.

0:03:33.120,0:03:35.440
What are the forces on standard tests?

0:03:35.440,0:03:37.159
For a single rope it's

0:03:37.159,0:03:39.269
around like 8 to 9 KN on the edge...

0:03:39.269,0:03:40.294
For the first fall?

0:03:40.294,0:03:41.440
For the first fall.

0:03:41.440,0:03:43.329
And... we had the first problem.

0:03:43.329,0:03:45.519
so called standard rope test that every

0:03:45.519,0:03:48.959
manufacturer does is super extreme in

0:03:48.959,0:03:50.959
order to make it more like a real

0:03:50.959,0:03:53.760
climbing fall we needed to reduce it

0:03:53.760,0:03:57.360
below 4 kilonewtons and if you ask why 4

0:03:57.360,0:03:59.760
it means that you haven't seen these two

0:03:59.760,0:04:01.840
videos where we tried to create their

0:04:01.840,0:04:04.400
hardest real climbing falls and measure

0:04:04.400,0:04:06.080
the forces of them.

0:04:06.080,0:04:08.480
That's why I said like maybe we try like

0:04:08.480,0:04:10.959
with a new rope to get like a feeling

0:04:10.959,0:04:12.959
like what falling height we need to have

0:04:12.959,0:04:16.320
like around this less than 4k and then

0:04:16.320,0:04:19.680
we switch to your rope

0:04:20.560,0:04:23.280
don't look guess 2km 2k

0:04:23.280,0:04:26.160
i think it's less

0:04:26.720,0:04:29.440
wow two and a half as i said these guys

0:04:29.440,0:04:32.320
are really good it took only one fall

0:04:32.320,0:04:34.400
and we got the force of two and a half

0:04:34.400,0:04:37.199
kilonewtons on a brand new rope and that

0:04:37.199,0:04:39.360
was perfect because we were estimating

0:04:39.360,0:04:41.360
that once we swapped the ropes to the

0:04:41.360,0:04:44.080
old one the force will go slightly

0:04:44.080,0:04:46.880
higher because all the ropes don't

0:04:46.880,0:04:49.680
absorb the impact as well and it's going

0:04:49.680,0:04:52.000
to be a perfect representation of

0:04:52.000,0:04:53.199
a realistic

0:04:53.199,0:04:54.879
hard climbing fall.

0:04:54.879,0:04:56.400
so here's the tricky part

0:04:56.400,0:04:57.560
when you fall on rock

0:04:58.960,0:05:01.520
sometimes it happens but almost the same

0:05:01.520,0:05:03.199
spot hits the

0:05:03.199,0:05:06.080
top carabiner -yeah

0:05:06.080,0:05:08.960
and now the tricky part is how to place

0:05:08.960,0:05:12.080
that spot that it would be on a peak

0:05:12.080,0:05:14.470
force on the carabiner

0:05:14.470,0:05:17.759
Yeah

0:05:17.759,0:05:19.710
not easy or hard is easy.

0:05:19.710,0:05:22.689
as you can imagine once the fall happens

0:05:22.689,0:05:25.573
the rope stretches and that soft spot that

0:05:25.573,0:05:28.740
we are trying to hit will move

0:05:28.740,0:05:33.700
(Speaks German)

0:05:33.759,0:05:35.600
You thought it's gonna be easy

0:05:35.600,0:05:36.720
no no

0:05:36.720,0:05:39.280
i knew it will be exactly like this the

0:05:39.280,0:05:42.240
force to the rope will start increasing

0:05:42.240,0:05:44.000
increasing increasing increasing

0:05:44.000,0:05:46.000
increasing and at some point reaches the

0:05:46.000,0:05:48.240
maximum and then the force will start

0:05:48.240,0:05:49.759
dropping dropping dropping dropping

0:05:49.759,0:05:50.880
dropping

0:05:50.880,0:05:53.600
so the challenge is how to position the

0:05:53.600,0:05:54.960
soft spot

0:05:54.960,0:05:58.720
that it would move over the quick draw

0:05:58.720,0:06:01.529
as close to the peak of the force

0:06:01.529,0:06:02.960
with this

0:06:02.960,0:06:05.840
small fall scenario a new rope oh

0:06:05.840,0:06:08.479
it's about like what 400

0:06:08.479,0:06:12.240
300 400 500 right

0:06:12.240,0:06:16.479
a lot so new rope would hold about 400

0:06:16.479,0:06:19.919
falls on realistic fall yeah let's see

0:06:19.919,0:06:22.960
what happens if we put that damaged rope

0:06:22.960,0:06:23.919
and see

0:06:23.919,0:06:28.240
if it's hundreds or it's just a few.

0:06:39.919,0:06:41.919
do you think we will hit that spot or we

0:06:41.919,0:06:43.680
will be very far off?

0:06:43.680,0:06:46.400
I think we hit it yeah

0:06:46.400,0:06:49.039
where is it now like 30 centimeters

0:06:49.039,0:06:50.080
below

0:06:50.080,0:06:52.880
yeah it's around here now

0:06:52.880,0:06:55.039
and the rope is tense so probably this

0:06:55.039,0:06:56.560
will move up

0:06:56.560,0:06:57.680
and

0:06:57.680,0:07:01.960
how much we will see

0:07:02.940,0:07:07.440
[Music]

0:07:07.440,0:07:11.280
so we overshot the soft spot just by a

0:07:11.280,0:07:13.919
little bit so we will try to readjust

0:07:13.919,0:07:15.360
now and

0:07:15.360,0:07:17.290
see if we can hit it more perfectly

0:07:17.290,0:07:22.080
[Music]

0:07:22.080,0:07:24.639
so we managed to hit the spot

0:07:24.639,0:07:26.360
at

0:07:26.360,0:07:29.599
2.47 kilonewtons of force now we will

0:07:29.599,0:07:32.160
try to increase the fall a little bit to

0:07:32.160,0:07:34.720
get to really hard falls

0:07:34.720,0:07:36.319
20, 30 centimeters

0:07:36.319,0:07:38.960
let's see if we will still stay in

0:07:38.960,0:07:40.880
the damaged spot where it will just

0:07:40.880,0:07:44.199
stretch over

0:07:47.840,0:07:50.639
so we broke the sheath

0:07:50.639,0:07:53.520
we broke the sheath after two falls

0:07:53.520,0:07:56.720
and you said it's gonna last

0:07:56.720,0:07:58.400
no but that's what i said like the

0:07:58.400,0:08:00.000
sheath will break

0:08:00.000,0:08:01.120
by force

0:08:01.120,0:08:02.960
the force was

0:08:02.960,0:08:04.879
only 2 point one

0:08:04.879,0:08:06.960
only 2.1 kilonewtons and the sheath

0:08:06.960,0:08:09.960
broke

0:08:13.199,0:08:14.960
so

0:08:14.960,0:08:16.639
if your rope is

0:08:16.639,0:08:18.800
soft good luck

0:08:18.800,0:08:22.240
if the sheath is already damaged like we

0:08:22.240,0:08:24.240
saw it like now this will lead like to

0:08:24.240,0:08:26.879
cut sheath like immediately but the

0:08:26.879,0:08:28.560
the good thing is that the rope will not

0:08:28.560,0:08:30.639
snap

0:08:30.639,0:08:32.959
because the core strands like are

0:08:32.959,0:08:36.399
still intact so how many falls it would

0:08:36.399,0:08:39.839
take now to completely snap the rope

0:08:39.839,0:08:41.760
that's a good question i never tested

0:08:41.760,0:08:43.660
this

0:08:43.660,0:08:45.519
but we could do this i guess we can do

0:08:45.519,0:08:47.839
at least like two or three falls now

0:08:47.839,0:08:48.729
only on the core strands

0:08:48.729,0:08:49.620
yes yes

0:08:49.620,0:08:52.120
guess how many falls it's going to take

0:08:52.120,0:08:53.120
20

0:08:53.120,0:08:57.760
20 yeah wow so it took only two falls

0:08:57.760,0:09:00.110
to completely shred this sheath

0:09:00.110,0:09:02.260
but the good thing is like a rope is

0:09:02.260,0:09:04.959
constructed in a way that the sheath only

0:09:04.959,0:09:07.360
takes around like 10 to 20 percent

0:09:07.360,0:09:08.560
of the load

0:09:08.560,0:09:10.399
and the rest like the the

0:09:10.399,0:09:12.320
load bearing structure is basically only

0:09:12.320,0:09:13.279
the core

0:09:13.279,0:09:14.880
okay so

0:09:14.880,0:09:16.800
the question is if you take a rope and

0:09:16.800,0:09:18.720
you squeeze it so you feel that it's

0:09:18.720,0:09:20.880
soft completely inside does it mean

0:09:20.880,0:09:23.120
that the core is damaged or no?

0:09:23.120,0:09:25.249
no because a lot of people think that

0:09:25.249,0:09:26.354
it's damaged inside

0:09:26.354,0:09:27.550
the core is still intact

0:09:27.550,0:09:29.120
like if i would cut the rope at

0:09:29.120,0:09:31.279
that spot would i find some damage

0:09:31.279,0:09:33.500
inside of the core strands?

0:09:33.500,0:09:35.910
It's difficult to say because over time

0:09:35.910,0:09:37.950
the core strands also when we do fall

0:09:37.950,0:09:39.830
tests you can see that it gets a

0:09:39.830,0:09:41.360
little bit more hairy

0:09:41.360,0:09:44.010
if you would cut it open but it's just

0:09:44.010,0:09:45.839
a couple of filaments that might have

0:09:45.839,0:09:48.080
broken but it's not that an entire core

0:09:48.080,0:09:50.880
strand is broken but it's weakened for

0:09:50.880,0:09:52.080
sure

0:09:52.080,0:09:55.040
let's see if we can snap this room now

0:09:55.040,0:09:58.240
yeah so how many falls you said?

0:09:58.240,0:09:59.680
I don't know

0:09:59.680,0:10:01.180
10 to 20?

0:10:01.180,0:10:03.120
10 to 20. let's see

0:10:03.120,0:10:05.599
so this is one multifilament.

0:10:05.599,0:10:10.000
Multifilament made out of multiple filaments yes

0:10:10.000,0:10:11.320
how much

0:10:11.320,0:10:15.040
280. this is 280 inside of this so if i

0:10:15.040,0:10:17.440
would take one

0:10:17.440,0:10:21.360
what force that one thing would hold

0:10:21.360,0:10:24.720
well you would not test it like this

0:10:24.720,0:10:27.200
because a multifilament you look at it

0:10:27.200,0:10:30.079
as the entire thing but what i can tell

0:10:30.079,0:10:33.680
you that this core strand

0:10:33.680,0:10:37.279
would hold 180 kilos and we are not even

0:10:37.279,0:10:39.760
reaching very hard falls yet this is

0:10:39.760,0:10:42.079
nothing

0:10:47.200,0:10:49.120
so you said 20 how many strands are

0:10:49.120,0:10:50.390
inside

0:10:50.390,0:10:53.040
[Music]

0:10:53.040,0:10:54.560
two of eight

0:10:54.560,0:10:58.640
so you set 20 false and we have 10 to 20

0:10:58.640,0:11:02.480
20. apart from standard drop tests what

0:11:02.480,0:11:04.720
are other tests that are performed on

0:11:04.720,0:11:06.880
climbing ropes what we usually do is

0:11:06.880,0:11:09.360
also test the abrasion resistance of the

0:11:09.360,0:11:11.440
rope so there we have an in-house

0:11:11.440,0:11:13.279
developed testing method so it's a

0:11:13.279,0:11:16.480
machine which pulls a rope over a sharp

0:11:16.480,0:11:19.680
metal edge and we are counting how many

0:11:19.680,0:11:22.000
cycles it takes for actually damaging

0:11:22.000,0:11:23.760
the shaft

0:11:23.760,0:11:27.960
[Music]

0:11:29.360,0:11:32.399
we have like two parts now broken so we

0:11:32.399,0:11:36.240
have one part and two parts broken yeah

0:11:36.240,0:11:38.480
if we talk about abrasion resistant i

0:11:38.480,0:11:40.720
have some interesting stuff to show is

0:11:40.720,0:11:44.160
200 cycles so 200 times

0:11:44.160,0:11:46.640
back and forth here you see a classic

0:11:46.640,0:11:49.440
rope so it does not have any treatment

0:11:49.440,0:11:52.880
impregnation it's a 9.5 it's pretty worn

0:11:52.880,0:11:55.200
out it is worn out it's at the point

0:11:55.200,0:11:57.120
where i would consider maybe even

0:11:57.120,0:11:59.839
cutting this yes and you should then

0:11:59.839,0:12:01.760
next to it we have

0:12:01.760,0:12:04.720
also 9.5 but it has the dry treatment

0:12:04.720,0:12:08.160
what that's a huge difference yes that's

0:12:08.160,0:12:10.639
exactly the same rope but just dry treat

0:12:10.639,0:12:16.000
it yes that's a huge huge difference

0:12:16.079,0:12:17.760
it feels a little bit burnt like when

0:12:17.760,0:12:18.720
you

0:12:18.720,0:12:20.160
touch it

0:12:20.160,0:12:22.000
it definitely got hot

0:12:22.000,0:12:23.680
like on the edge

0:12:23.680,0:12:26.240
so your six lives got a bit damaged but

0:12:26.240,0:12:28.320
that's good to know and you can climb

0:12:28.320,0:12:30.320
you can climb you would climb on this i

0:12:30.320,0:12:31.440
mean the brits

0:12:31.440,0:12:33.839
was done by jean villanova like with a

0:12:33.839,0:12:35.680
sheet colored rope like from the

0:12:35.680,0:12:37.760
beginning on i think in the second pitch

0:12:37.760,0:12:39.839
of that pitch he had a stone fall and

0:12:39.839,0:12:41.680
his rope already got cut like the sheet

0:12:41.680,0:12:43.200
was completely damaged and he did the

0:12:43.200,0:12:45.600
whole fits reverse with this rope then

0:12:45.600,0:12:48.320
he like repaired a lot over it does the

0:12:48.320,0:12:52.160
percentage of sheaf versus core strands

0:12:52.160,0:12:54.079
it's not always the same in sport

0:12:54.079,0:12:56.480
climbing ropes yeah or like climbing

0:12:56.480,0:12:58.160
ropes in general it's not always the

0:12:58.160,0:12:59.200
same now

0:12:59.200,0:13:01.920
and what does it depend on well for us

0:13:01.920,0:13:03.920
it depends on what kind of rope we want

0:13:03.920,0:13:06.399
to make sport climbing

0:13:06.399,0:13:08.399
wait let me show you something show me

0:13:08.399,0:13:10.480
something okay so you have the interplay

0:13:10.480,0:13:13.120
of both the percentage of material that

0:13:13.120,0:13:16.079
is the chef but also

0:13:16.079,0:13:18.800
how the chef was constructed for example

0:13:18.800,0:13:22.800
here on this rope we have more chef

0:13:22.800,0:13:24.720
twines so

0:13:24.720,0:13:27.839
if you would count these

0:13:27.839,0:13:31.440
singular ones they are much more than on

0:13:31.440,0:13:33.440
this chef oh yeah that's almost double

0:13:33.440,0:13:34.639
no

0:13:34.639,0:13:37.360
no no it isn't but it's just a slight

0:13:37.360,0:13:39.600
difference but if you check out the

0:13:39.600,0:13:40.959
surface

0:13:40.959,0:13:44.800
you can see that here the little cubes

0:13:44.800,0:13:47.600
that they form are smaller

0:13:47.600,0:13:51.600
than on this one so here we have a super

0:13:51.600,0:13:54.399
fine surface of the of the chef so if

0:13:54.399,0:13:56.959
you for example would touch this one it

0:13:56.959,0:13:59.120
feels much rougher yeah

0:13:59.120,0:14:00.880
so this is also what makes it more

0:14:00.880,0:14:03.839
durable

0:14:10.160,0:14:12.240
so we are still very far from twenty but

0:14:12.240,0:14:14.839
what's the maybe i get some coffee

0:14:14.839,0:14:18.320
huh it was already 3.4 yeah it's

0:14:18.320,0:14:20.399
increasing and increasing so the dynamic

0:14:20.399,0:14:22.160
performance of the rope gets low and

0:14:22.160,0:14:24.720
lower and lower this one here is our

0:14:24.720,0:14:26.959
workhorse construction it does not have

0:14:26.959,0:14:29.440
any treatment but we're using the best

0:14:29.440,0:14:31.920
and the finest yarns that we have to

0:14:31.920,0:14:35.040
make this construction and it also i

0:14:35.040,0:14:37.680
would say you know it's as good as the

0:14:37.680,0:14:39.680
dry rope so why

0:14:39.680,0:14:41.920
not all ropes are made this way where we

0:14:41.920,0:14:43.600
have finer

0:14:43.600,0:14:46.320
construction because price matters yeah

0:14:46.320,0:14:48.720
now i would like to see not 200 cycles

0:14:48.720,0:14:53.040
but 1 000. yes they come here oh really

0:14:53.040,0:14:57.440
not the 2000 but the 500. i would climb

0:14:57.440,0:14:58.720
with

0:14:58.720,0:15:01.360
this one and with this one or if i have

0:15:01.360,0:15:04.560
a risky day i would choose this

0:15:04.560,0:15:06.399
do you have risky days

0:15:06.399,0:15:10.639
sometimes turns out size or diameter is

0:15:10.639,0:15:13.199
not all that matters when we talk about

0:15:13.199,0:15:16.000
durability construction and extra

0:15:16.000,0:15:18.880
treatments might have a bigger impact

0:15:18.880,0:15:21.040
it's a crazy difference now having in

0:15:21.040,0:15:22.880
mind that all of them will run through

0:15:22.880,0:15:25.040
the same process to the point where

0:15:25.040,0:15:28.240
super thin 9.0 millimeters rope looked

0:15:28.240,0:15:31.360
completely fine after 500 of cycles of

0:15:31.360,0:15:33.600
dragging it across the sharp edge this

0:15:33.600,0:15:35.360
one looks quite good

0:15:35.360,0:15:37.279
like a little bit fuzzy but i would

0:15:37.279,0:15:40.120
definitely use it however much thicker

0:15:40.120,0:15:43.279
9.5 millimeters rope but old

0:15:43.279,0:15:46.000
construction and no treatments were

0:15:46.000,0:15:47.519
completely

0:15:47.519,0:15:48.240
done

0:15:48.240,0:15:51.839
my guess is five more falls and we

0:15:52.839,0:15:55.440
snapped think we have to increase

0:15:55.440,0:15:57.839
otherwise yeah let's increase everybody

0:15:57.839,0:16:00.000
wants harder falls but it's already

0:16:00.000,0:16:01.759
getting harder we went yeah two and a

0:16:01.759,0:16:03.839
half to three and a half yeah to

0:16:03.839,0:16:06.000
increase

0:16:06.000,0:16:08.079
you can't just dropping keep dropping

0:16:08.079,0:16:11.279
yeah keep dropping and we'll get coffee

0:16:11.279,0:16:15.519
what do you want coffee espresso

0:16:15.519,0:16:17.600
are you asking the viewer with milk are

0:16:17.600,0:16:20.480
you sending me yes

0:16:20.639,0:16:23.040
one interesting observation i got while

0:16:23.040,0:16:25.759
i was making this intro animation

0:16:25.759,0:16:27.839
which by the way took me multiple days

0:16:27.839,0:16:29.600
and multiple attempts

0:16:29.600,0:16:32.720
was that while the rope is new

0:16:32.720,0:16:35.360
the file glides over the rope very

0:16:35.360,0:16:37.920
smoothly and it's pretty hard to make

0:16:37.920,0:16:40.320
any damage to it but once the rope

0:16:40.320,0:16:43.600
starts becoming fuzzy it becomes easier

0:16:43.600,0:16:46.320
to make some extra damage so it felt

0:16:46.320,0:16:47.440
like the

0:16:47.440,0:16:49.839
fuzziness or the damage to the rope is

0:16:49.839,0:16:52.320
kind of exponential the worse it gets

0:16:52.320,0:16:55.440
the easier it is to make it even worse

0:16:55.440,0:16:57.440
oh yeah let's do again all these six

0:16:57.440,0:16:59.279
tracks left

0:16:59.279,0:17:00.880
whoa so

0:17:00.880,0:17:01.920
okay

0:17:01.920,0:17:04.079
so you can come back already with your

0:17:04.079,0:17:07.120
coffee so the force went lower but one

0:17:07.120,0:17:08.959
strand snapped

0:17:08.959,0:17:11.520
too snapped but the sound of the strand

0:17:11.520,0:17:13.439
snapping was good

0:17:13.439,0:17:16.160
is it bad if i scream behind the camera

0:17:16.160,0:17:17.760
it's not the sound that you want to hear

0:17:17.760,0:17:19.679
when you're out climbing

0:17:19.679,0:17:23.199
okay the fun part how fuzzy is too fuzzy

0:17:23.199,0:17:26.319
or how soft the rope is too soft when

0:17:26.319,0:17:29.039
should people actually cut it i mean you

0:17:29.039,0:17:31.039
pull the rope through your hands how to

0:17:31.039,0:17:33.280
to check the ropes this you should do on

0:17:33.280,0:17:35.120
a regular basis and what are you doing

0:17:35.120,0:17:37.039
when you're pulling well on the one hand

0:17:37.039,0:17:40.080
i feel the rope so i feel the how the

0:17:40.080,0:17:43.360
rope behaves if it's super soft if it's

0:17:43.360,0:17:45.280
thicker and at the same time you know

0:17:45.280,0:17:47.840
you you pull it over your finger and you

0:17:47.840,0:17:50.000
look at it so you do like a visual

0:17:50.000,0:17:52.640
inspection

0:17:56.799,0:17:59.120
beautiful rope wood whip

0:17:59.120,0:18:01.919
would you whip you would whip you would

0:18:01.919,0:18:04.880
see oh the force went lower again

0:18:04.880,0:18:06.720
so basically the less core strands we

0:18:06.720,0:18:08.480
have the better the rope is the softer

0:18:08.480,0:18:10.880
the catch

0:18:11.440,0:18:13.679
i wouldn't see it that way but

0:18:13.679,0:18:15.679
if you want a soft catch just break the

0:18:15.679,0:18:16.559
rope

0:18:16.559,0:18:18.880
so let's say i'm running my rope through

0:18:18.880,0:18:21.520
my hand and i find that spot which is

0:18:21.520,0:18:24.480
softer so how do i know if it's already

0:18:24.480,0:18:25.600
bad

0:18:25.600,0:18:28.400
or first consider the whole rope i mean

0:18:28.400,0:18:30.320
if you have a really soft rope because

0:18:30.320,0:18:31.919
they're hard i mean some ropes are

0:18:31.919,0:18:34.080
already soft when you you buy them in

0:18:34.080,0:18:36.240
the store huh i would say the hour ropes

0:18:36.240,0:18:38.880
are a little bit stiffer in general and

0:18:38.880,0:18:40.000
we do that to make them more

0:18:40.000,0:18:42.320
long-lasting but if your whole rope is

0:18:42.320,0:18:44.080
very soft and you have a spot which is

0:18:44.080,0:18:46.559
just a little bit softer

0:18:46.559,0:18:48.880
i would say i would not like say oh

0:18:48.880,0:18:50.960
that's super dangerous huh but if you

0:18:50.960,0:18:51.679
have

0:18:51.679,0:18:53.600
the rope is generally really stiff and

0:18:53.600,0:18:56.000
then you have one spot with this ultra

0:18:56.000,0:18:57.440
soft then you know

0:18:57.440,0:19:00.320
something is not right there and exactly

0:19:00.320,0:19:02.080
what's not right there

0:19:02.080,0:19:04.880
hey there is so many things that it

0:19:04.880,0:19:07.280
could be so as an example if i would be

0:19:07.280,0:19:09.760
just looking into this piece of the rope

0:19:09.760,0:19:11.840
it would be pretty difficult to say how

0:19:11.840,0:19:14.640
soft it needs to be and if i should cut

0:19:14.640,0:19:15.360
it

0:19:15.360,0:19:16.400
but

0:19:16.400,0:19:18.559
if i compare it to the middle of the

0:19:18.559,0:19:21.280
same rope i can clearly see a big

0:19:21.280,0:19:24.240
difference so this clearly is far from

0:19:24.240,0:19:26.400
what it used to be and it's better to

0:19:26.400,0:19:28.880
cut this end and if you want some tips

0:19:28.880,0:19:33.039
on cutting ropes check out this video

0:19:33.980,0:19:35.919
[Music]

0:19:35.919,0:19:38.000
i don't think we can do another one

0:19:38.000,0:19:39.919
unfortunately the rope kept stretching

0:19:39.919,0:19:42.320
and stretching and stretching until we

0:19:42.320,0:19:44.559
almost reached the bottom of the drop

0:19:44.559,0:19:46.559
tower and we couldn't do any more

0:19:46.559,0:19:47.679
testing

0:19:47.679,0:19:50.799
however we decided to show what happens

0:19:50.799,0:19:53.440
if you have 80 kilograms of mass hanging

0:19:53.440,0:19:56.320
on only core strands and you touch the

0:19:56.320,0:19:58.640
core strands with the knife

0:19:58.640,0:20:00.960
test

0:20:04.240,0:20:07.440
it just barely dude

0:20:07.440,0:20:10.480
you went too long

0:20:10.480,0:20:11.760
what happened

0:20:11.760,0:20:14.400
but what happened

0:20:14.559,0:20:16.559
so it didn't broke so i was right with

0:20:16.559,0:20:19.440
10 to 20 right

0:20:19.440,0:20:21.360
yes thanks

0:20:21.360,0:20:24.000
so basically what we got is

0:20:24.000,0:20:28.400
running very damaged rope on relatively

0:20:28.400,0:20:29.600
hard dish

0:20:29.600,0:20:32.159
maybe to normal foil yeah real case

0:20:32.159,0:20:35.200
scenario ripped the sheath of the rope

0:20:35.200,0:20:37.120
in just two falls which is very

0:20:37.120,0:20:38.799
dangerous but then it was good to see

0:20:38.799,0:20:41.039
that the rope did not snapped

0:20:41.039,0:20:43.840
and only the core strands kept holding

0:20:43.840,0:20:44.880
for

0:20:44.880,0:20:48.720
multiple more falls so

0:20:48.960,0:20:51.200
but when he touched barely with the

0:20:51.200,0:20:53.120
sharp knife the core strands he just

0:20:53.120,0:20:55.520
barely touched it it snapped

0:20:55.520,0:20:57.039
so if your

0:20:57.039,0:20:58.720
shift gets away

0:20:58.720,0:21:01.039
and then your rope runs across something

0:21:01.039,0:21:03.200
sharp on the rock super dangerous

0:21:03.200,0:21:04.240
yeah

0:21:04.240,0:21:05.840
i think now we're coming to the second

0:21:05.840,0:21:07.919
scenario you wanna you wanna show when

0:21:07.919,0:21:10.400
it comes to sharp edge scenarios yeah

0:21:10.400,0:21:13.760
like the ropes don't have this high

0:21:13.760,0:21:16.159
safety margin

0:21:16.159,0:21:18.720
i hope that you are subscribed because

0:21:18.720,0:21:20.799
the next experiment that i'm gonna show

0:21:20.799,0:21:23.280
in the next video is gonna blow your

0:21:23.280,0:21:26.559
mind and probably change a little bit

0:21:26.559,0:21:28.799
the way you care about your climbing

0:21:28.799,0:21:30.720
equipment

0:21:30.720,0:21:34.480
okay now i need you to pee

0:21:34.480,0:21:37.799
come on