g'day my smart mates my name's dylan dance i'm a physicist from the land down under
grab a coffee grab a chair grab a veggie sandwich look grab whatever you want to go
just make sure you grab nordvpn so a huge thanks to nordvpn for sponsoring this video
it's my first ever sponsored video and it's our first collaboration together so make sure you help
me out if you enjoy this channel and the content on it they are offering you guys a two-year plan
with a huge discount plus an extra month for free all you have to do is go to nordvpn.com forward
slash dylan jay dance or use the code dylan j dance to get that same deal i'm gonna do what
i usually do with my videos and sprinkle in some physics here and there to keep it interesting so
you won't want to miss this little sponsored bit anyway do you know how easy it is to go to a cafe
get on the free wi-fi and hack into other people's devices using that free wi-fi
well it's a lot easier than you probably realize and in fact you don't even need to be out of
cafe you can do this from home and until quantum cryptography comes around that will be completely
unbreakable mind you because it has quantum in its name no it's because it relies on quantum
mechanical properties which are extremely shy and delicate things but until that comes around
there's only a few ways that you can stop me from having my way with your data and one of those ways
is a wormhole no not those wormholes through space and time unfortunately we haven't quite worked out
the physics of those wormholes just yet though they might be possible according to the laws of
physics however i'm talking about a different kind of wormhole a cyberspace wormhole we call
these cyberspace wormholes vpns virtual private network connections and by using one you'll make
it very hard for people to read your data you see vpns work by encrypting your data so hackers can't
read it all the smart measures are useless if the information hacker still can't be read so unless
you're a physicist the closest thing you'll get to quantum cryptography and wormholes are vpns
and nordvpn is by far and away the best one out there trust me and it is extremely easy
to use you download it click a few buttons and when you're safe hackers won't be able
to read the data they still so apart from protecting your online data from hackers
there are a few other fun facts that i want to talk about because you know we like those
on this channel it can unlock netflix for almost any country unlimited bandwidth has an automatic
kill switch and it can be used on any device so apple android there are apps for it so once again
thanks to nordvpn for sponsoring this video go to nordvpn.com forward slash dylan j dance or use the
code dylan j dance to get two year plan with a huge discount plus one month free plus you'll
be helping this channel out and i'll appreciate a lot so anyway let's get into it guys and talk
some
you really did just get knee to the moon
foreign all right let's pause it there i love that scene that was
hilarious but i have a bunch of problems with it so let's maybe do some calculations for a change
let's work out how fast must have saitama been moving to have gone from the moon to
earth as quick as he did how much energy he must have used and also we could probably work out
how big the crater uh would have been that would have been left from saitama impacting
the earth at that speed it takes light like 1.3 seconds to go from the moon to earth that means
as you look at the moon at night you're looking at it as it was 1.3 seconds ago it's not an instant
thing you look you're looking pretty much back in time but only 1.3 seconds so let's calculate
all right so we've done the calculations so we worked out how fast cytoma must have been moving
and that works out to be about 45 million miles per hour so you're going to have some pretty
serious uh re-entry side effects when you're coming into the atmosphere but let's ignore that
um and because he's traveling at 6.7 percent the speed of light
means he'll experience some relativistic effects right so i've had to work out his relativistic
kinetic energy um and that works out to be about 1.44 times 10 to the 16 joules so that's like 3.44
megatons of tnt which again is enormous which is also about 215 hiroshima nuclear bombs
and 0.07 za bonds which is the most powerful nuclear bomb ever and then from that we worked
out how big the crater he would have left on earth would be and it's about 570 meters uh the one that
killed all the dinosaurs was about 180 kilometers so it wouldn't quite wipe out
humanity but it would probably do some damage so yeah anyway there's some numbers for uh
saitama's supposedly immeasurable speed and power but you know what probably wasn't even
trying now the other problem i had with that scene was that saitama had no effects from
being exposed to a vacuum there's no atmosphere on the moon right now the scene probably would have
been even more entertaining if they had to take into a into account science because your skin
your whole body would inflate uh because your skin is quite elastic there'll be bubbles forming
in your blood and you're you'd literally inflate and look like a balloon animal but you wouldn't be
dead you'd probably lose consciousness after about 15 seconds as blood stops getting to your brain
but again you wouldn't die you'd probably survive about two minutes though there's a
whole bunch of stuff we could talk about as to what happens to the human body in space
but i reckon we leave it there and save it for another video and keep watching some one punch man
nissan
uh you really could destroy an asteroid or an incoming whatever by yes directly hitting it but
there's another problem that would probably cause even more damage so let me explain so let's assume
it's a big asteroid and most asteroids when they strike earth hit it at about 17 kilometers per
second so it's pretty quick and let's assume it has about 70 billion kilograms of mass
so if you work out how fast you'd have to be traveling to disintegrate it like saitama it
comes out to be about 99.979 percent speed of light i've explained in other videos why that
would be pretty hard i think in the dragon ball z1 um but that's 2.9 meters per second closer to the
speed of light than the protons uh shot at the lhc it's not just a single proton being shot to
that speed though like at the lhc it's a whole body's worth which is like 10 to the 28 of them
so at that sort of speed electrons would get ripped from your body and you'd turn
into a fiery plasma the sunburn you'd get just from the air molecules alone rushing past you
would be worse than a lethal dose of radiation and here's the problem when you finally hit the medial
all your kinetic energy and all the kinetic energy of the meteor as well as the chemical energy
holding it together has to come out somewhere all of that energy that it's moving with has to
go somewhere and it would create a huge explosion that would probably circle the earth many times so
the impact saitama had with the meteor that was so close to the city would have destroyed
everything so yeah that's the problem i had with that scene but anyway
did you know bananas are actually radioactive if you ate 10 million bananas at once
you would die from radiation poisoning so it comes from the isotope potassium 40. it's radioactive
and bananas are radioactive but yes you should definitely keep eating them and if you ate i think
it's like 250 a day for seven years you would actually experience some radiation poisoning um
i think it exposes you to like one percent of your daily exposure to the background radiation
which is just like background radiation is all the natural and artificial radiation around you on a
daily basis but anyway fun fact for you i think it fits in with the uh i don't know this show
foreign
in russian definitely doesn't mean okay probably fits better as well
be
yeah all right let's pause it there because that's kind of a good analogy of
the real world of science where you've got all the best science being done by these
people who don't get much credit for it they don't get any fame or media spotlight
and then you've got other people taking all the spotlight that really don't deserve it this guy
but uh i think when the day you know we look at scientists like uh kim kardashian like our heroes
and you know their they become our role models i think the future of humanity will be will look a
lot brighter when that day comes but anyway so i guess i'm just trying to help make that a reality
um you know clearly these videos you're not really learning all that much physics or science
but i'm trying to inspire you guys to you know maybe pursue it yourselves and uh
look differently at science and the people behind science um yeah i think it's an important thing
all right that'll do it i think that's enough for this video i was really enjoying it
uh so i'll definitely make another one with this show it's super funny
uh hopefully you guys learned something if you have any good ideas for things that i can react
to leave a comment down under subscribe like and i'll catch you guys next time