good day didgeridoo smart person my name's dylan i'm a physicist from the land down under
welcome to the physics club so fair warning i think this show is pretty brutal i looked up the
trailer and uh there were a few people getting eaten so if you're fairly squeamish maybe uh
this isn't the video for you but i don't know about you i'm feeling pretty hungry and uh a
few of my eagle eye subscribers have noticed that my fridge is in the shot and they've commented on
other videos asking what's in his fridge so let me uh just get over here see what we got all right
i think i've mentioned on the channel before but uh i'm as content as a cucumber
so let's watch some people get in it's probably just going to make me look like
more of a psychopath isn't it some people are commenting on my other videos saying
that i look like a psychopath because i never laugh at any of the jokes i'm i just it takes a
lot to make me laugh like i'm always smiling at jokes i'm a smiler it's one scary looking lady
donate the mom
surely they're not gonna do it
now
holy
wow she just got ripped in half um oh god but that reminds me actually i wonder how much
force it would take to actually rip someone in half just adding to that psychopath title
well i don't know about ripping someone in half but i do remember a calculation um
i tried to work out how much force you'd need to apply to pull someone's arm off
i don't know why i did this but anyway i worked it out and it was something like 85 000 newtons which
is a lot but i think uh these giant beings would
be more than capable of that but anyway just an interesting fact for you anyway moving on
it's all brutal
such great music
all right let's talk about this maneuver gear this 3d maneuvering equipment could something like that
be realistic um so they have like two grappling hooks uh you know grabs onto things propels them
through the uh they have some kind of gas chamber i think they said uh that it's compressed gas and
it's used to fire the hooks and also like launch them um no it's not very realistic
they're moving around very quickly and in you know multiple axes so you'd be experiencing many g's
and i yeah i don't think you'd be fainting every time you launched in any which way uh i
don't think a grapple hook would be able to grip strongly enough onto things i also don't think
that compressed gas would be able to give you such thrust but i could be wrong so if someone's
out there who'd like to correct me feel free so yeah i don't think it's very realistic whatsoever
not to mention one small slip and you're probably going to go splat on a wall it looks like they're
traveling at you know 100 kilometers per hour so i don't think it is a great idea for fighting
these titans so they just mentioned uh that these titans need sunlight so they're theorizing that
they actually get energy from photosynthesis which is pretty cool but uh something about
photosynthesis which you might not know is that we really don't completely understand it just yet
scientists have long understood how photosynthesis works but only up to a point the very fine details
are actually very hard to discern everything takes place at the molecular level and the atomic level
you've got proteins that are hard to see you've got photons and electrons coming and going um and
so a lot of these processes are quantum mechanical photosynthesis actually relies on quantum physics
uh it relies on the laws of nature at its most granular um so the people who work on this stuff
the people who are trying to figure out discern the fine details of photosynthesis are known as
our biophysicists so understanding how nature does it will help us figure out what materials we need
to uh bring together to you know artificially harvest light and have a you know a green
source of renewable energy understanding how this natural process works will also greatly
improve the efficiency of modern solar energy devices and possibly even make them far smaller
hold up so these walls are 50 meters high they built them in 100 years
how big is the piece of land the wall is surrounding all right so i just found that
the radius to the furthest wall is 480 kilometers which gives diameter uh for the whole place 960
kilometers so if you work it out if if if you assume it's a perfect circle that gives an area of
720 000 square kilometers which is huge because that's like the size of afghanistan
or texas so that is a monumental piece of land that they've built a wall around to the great wall
of china i think it took them about two thousand years to build and that's meant to be about
21 000 kilometers so if you work out the circumference of this village in attack
on titan its uh radius is 480 kilometers so you know the circumference is c equals 2 pi r so that
will give you 3 000 kilometers um which is 1 7 of the great walls time i mean distance so you know
it should take more like 280 years to build uh this wall maria so that's actually not too far
off so that's impressive and that's if humans right uh who knows i haven't it hasn't told us
how this wall was built so there could be some weird stuff going on i'm sure
all right i think i've had enough of watching people get eaten so
please subscribe if you haven't already and i'll see you guys next time catcher