(dramatic music)
- Jake Roper, come to die.
(spell)
Your magic is mine, Roper.
- Hey, I'm Jake and before I was blasted
into some sort of weird wizard purgatory
by He-Who-Shall-Not-Be-Named for legal reasons,
I had two loves in my life: science and movies,
so I decided to put myself in one of my favourite cinematic franchises ever,
Harry Potter to... actually, you know, walk with me.
To get you up to speed, this Dark Lord is killing anyone who defies him.
He's figured out a way to steal wizards' magic in the process,
making him even more powerful,
so I don't have my magic anymore,
but I do have science,
because there is a link between magic and science.
Energy!
So, can we harness that energy to defeat the Dark Lord?
More importantly, can I survive the inevitable good vs evil showdown?
And use energy to create an invisibility cloth radiating energy?
Overcoming the force of gravity and flying with magnetic energy?
And creating a magic wand through electrical energy?
Could you survive Harry Potter?
(theme song)
(dramatic music)
Headmaster Casey?
What...
What's happening?
Well Jake, you died.
And I brought you back to life
and I wanted to bring you to the safest place I could think of, so...
so here we are at my castle!
Technically, it's a time share,
but... you know, now that you're back alive,
I need to keep you safe from the Dark Lord.
- Wait, hold on, am I The-Boy-Who-Lived?
- I don't know if I can legally say that, but...
your friends are here, let's get inside.
Jake...
I'll protect you.
(dramatic music)
- Oh no!
Sorry, Casey!
- Jake!
(soft magical music)
About time you got here. We were playing magic pool!
- Oh yeah, cool! Sorry I'm late. You know, I... died!
Speaking of which, Casey's dead, I no longer have magical abilities anymore
and the Dark Lord and his evil henchmen are outside.
They're probably gonna break through that door at any moment
and kill us, I think.
- Is that all? Jabril and I got this.
(together): Force Fieldus!
- Well that's pretty convenient.
- What's the point of being a wizard
if you can't make magic work for you?
- Anybody want tea? - Oh, that sounds lovely! - Let's!
- I want Earl Grey. - I have a spell that's perfect for tea.
- Okay, sure, you know, I wish that I could still conjure forces.
Side note: when we talk about forces,
what we're talking about is the transfer of energy
from one object to another.
In physics, energy is the ability to do work
and work is what it takes to move an object with a force
and force is the transfer of energy that makes it happen
and there are four fundamental forces, or energies,
that make everything in the universe
well... work!
There are the strong and weak nuclear forces,
which are at the subatomic level.
Then, there are the forces of gravity.
Gravity is what holds you to Earth,
but literally every other force you feel is electromagnetic.
As far as you and your world is concerned,
electromagnetic energy is what makes everything happen.
These energy waves travel with the speed of light
and can be composed of radio waves, TV waves, heat, light, invisible waves.
It's what allows you to cook food in the microwave
or watch your television
or use your cellphone to communicate with other phones.
They're really going at it.
We should probably head back inside.
Electromagnetic energy is also what keeps your feet from falling through the ground
and it can seem pretty magical.
Speaking of magical, you know I wish I still had my powers
and I could help defeat the Dark Lord
and avenge my friend Casey,
but I don't have a wand and even if I did,
don't think I could use one.
- Ah! You need a wand?
Just open that door.
- Mat Pat! Oh, it is good to see you, buddy
and also, you look good as a painting.
Uh, yeah, wand...
Don't think I could actually use one right now, so...
- Oh, I know a guy, don't worry.
All the answers to your needs are right behind that door.
- Is that Room of Requirement?
- Uh... sure it is.
- Oh! William Osman. Why are you in a closet?
- If you're seeking a wand, you've come to the right place, my friend.
- I'm just gonna stay out here. I think that's... oh!
Oh no, okay.
- Mmmh. I'm parched. I think I'm gonna go for some tea.
- Welcome to my muggle-wand Emporium Jake, what do you think? It's brand new.
- Uh...
You know, I don't want to be critical, William,
but it kind of looks exactly like my system lab.
- Yup, it's my muggle-wand Emporia.
Now, let's check out my wires.
Fire wand!
High voltage wand!
Laser wand!
- Pretty sure that's a flashlight.
- No, it's a laser wand. - Is it?
(playful music)
(Jake): This flame-wand creates fire by igniting a steady stream of propane,
which causes it to release electromagnetic waves.
Those EM waves both heath up the surrounding air
and create the orange light that you're seeing.
Fire is awesome,
but unfortunately, the flame wand's reach is only about 0.3 meters,
so unless I get in close to my enemy,
this wand will just make 'em a little warm.
What else you got?
The wand discharges a powerful electric field into...
well, whatever we want.
It generates a voltage of 200 kilovolts
into these small, and very painful, bolts of lightning.
- You see? - Yeah!
In this thermal shot, you can see that voltage trying to find the ground...
before finally striking.
Sadly, the electrostatic wand reaches even shorter than the flame wand.
Mere centimeters.
So yeah, that leaves... the laser flashlight.
Fine, laser wand.
So this one packs a punch and from a distance,
but why?
Lasers use a coherent beam of light
to focus power in a small space.
In this case, the laser wand is focusing a lot of power,
but how does it cause such destruction?
Well, when light hits something, it's either reflected or absorbed
and in this case, it's being absorbed by the atoms of our target.
Giggling them about and converting that light into thermal energy
which causes them to burn.
This seems like the best out of the three.
- Jake, what do you think of the wands?
- William, you did a great job.
I don't think they're going to do a really good job though against the evil wizard.
Cause he's a wizard.
- Okay well, individually, they might be weak,
but if we tape them together and form a super wand,
I think you will have the perfect--
- You know, okay... How about I just take them.
You keep that tape.
I'll take these. I'll go fight the wizard and I'll see you later.
Well... that... that was interesting.
Oh!
- God, it's so hard to see with this mask on.
Jake. Hold still for me.
- Oh no!
Okay, well that deatheater must have gotten in here
before Allison and Jabril put on their protective force field.
- Use the laser wand, dude.
(grunts)
- Oh, that's good!
Is that a flashlight?
(painful scream)
Not cool!
Not the money-maker!
- Alright, Allison, I've got you here. Have you read this book?
- Oh, I've read every book. - Oh.
- Guys! Okay, Death Eater must have gotten in before the force... field.
Okay, they're here. We're trapped in a tour.
I have no magic. What are we gonna do?!
- Brooms? - Brooms.
- Yeah, brooms, that's a great idea,
but you know that I can't actually fly. - To the roof!
- Remember the whole... no longer has magic and they're gone...
Yeah, it's cool. Don't worry about me.
I feel like a house elf.
Worst friends ever!
If only there were some way that I could hover or fly out of here.
- What about harnessing the electromagnetic energy
in such a way that you could levitate?
- Uh... yeah. What now about that?
- I mean... it's a theory.
- Game theory! - No!
A scientific theory.
Just run off to your system lab and figure it out.
- Yes, sir. Okay. That's a good idea.
(door breaks)
- Oh come on! This is not gonna look good on my quarterly report.
- So a flying broom would be the answer to all my problems.
But unfortunately, that's not really an option for me...
or is it?
This is a super conductor.
And watch what happens when we put it on a magnetic track.
Nothing. That's because we have to cool it to a bombing -178 degree Celcius
and how do we do that?
With liquid nitrogen.
(Harry Potter theme song)
When the superconductor has been cooled below -178 degrees Celcius,
it exhibits a really interesting property called the Meissner Effect,
which is when the superconductor completely expels magnetic fields.
That is to say that a superconducting element
will levitate over a magnetic track,
even though the material itself isn't magnetic.
The issue with a superconductor is: you have to keep it
at an extraordinarily low temperature,
because once it warms up...
the effect is lost,
but if we can maintain that temperature,
it does have a huge benefit over regular magnetic limitations,
which is that it can levitate in any direction,
just like the brooms in Harry Potter
and it looks...
like magic.
Unfortunately, Casey's time share doesn't have
a magnetic track running through it
and riding these super cold broom isn't a viable option.
(sigh) So many stairs! Okay! Why can't I fly?
So, Allison and Jabril should be on the roof over there,
so we should be pretty close.
That is not good.
Okay yeah, not having magic is the worst.
I mean, I can't defend myself, I obviously can't fly,
but I can... hide.
- I wouldn't open that.
William's in there.
- Oh wait, William's in this closet too?
- You bring the wands back? - He's in all the closets.
Why don't you just use radiant energy to hide yourself?
Light is a form of radiant energy
and it's what makes us visible when people are searching for us.
- Wait! So if we could manipulate radiant light energy,
could I make myself invisible?
I'm invisible!
I'm just kidding.
We'll get back to that thing in a minute.
Now, invisibility.
It might seem like a technology that will forever be
in the realm of science-fiction and fantasy,
but in theory, it's a somewhat straight forward concept.
One of the greatest discoveries of all time
is that light is an electric and magnetic field
carrying electromagnetic energy through space.
Now, I don't want the electromagnetic energy
of my body reflecting right now to reach the camera,
instead, I want the energy reflecting off of the background
that is what's behind me,
to be able to reach the camera,
therefore rendering me invisible to you,
but how can we do that?
How can I make myself, scientifically speaking,
invisible.
Well, one way is a lens system
developed by scientists at the University of Rochester
that renders things invisible
by focusing the background image to appear in front of objects placed in front of it,
but it's on a small scale
and as aeras where the object is no longer hidden. Like this.
Then, there is the military.
They're working on cloaking tanks using the same technology
as that device I was holding in the beginning.
This invisibility shield utilizes refraction to hide me.
It's coated with hundreds of tiny lenticular lenses
that redirect the rays of light
around whatever we want to make invisible.
Unfortunately, there are limitations to this.
It's not fully invisible and it doesn't deal well with complex backgrounds.
Basically, it works best if I'm in front of something
that is the same colour as what I am wearing. Like this.
Also, it's cumbersome and it doesn't work well
with objects placed horizontally.
This is due to the unusual shape of the lenticular lens.
The bumps only bend light that runs parallel to the orientation of the lens.
I don't think either of these things is gonna hide me
nearly as well as Harry's invisibility cloak,
but since I don't have that, I'll...
I'll just stick to hiding.
Mat Pat, that was a great idea!
Mat? Mat Pat?
Where'd you go?
- Jake Roper! Face me now, you coward!
Or watch your friends perish!
- What'd you say? I couldn't hear you.
You know what, I'll be right down.
(Cat hisses.) Oh, sorry, cat.
Oh! Casey's time share's got all those stairs!
What did you say? What's up, bud?
- Sorry, this hood really baffles sound.
- Derek? Dude!
What are you doing, man? I thought we worked this out last season.
- We did, but hunting you down is just too much fun.
- Yeah, you should probably see a professional about that.
- You know, it's cute.
You think your off-the-shelf science gear can defeat me,
Derek Muller, a physicist with a PhD?
You're no match for me!
(indistinct voice)
- Well, this is what I've got.
(dramatic music)
- Ha ha! Looks to me like Veritasium was easily defeated.
(chuckles)
Easily, get it?
I'm a painting...
It's a painting pun!
- Well I'm out.
- I give, man. I'm done chasing you, Jake.
If you need me, I'll be over on my channel.
Oh and Jake, that laser wand really hurt.
- It's not a wand!
Why does everyone keep saying it's a wand?
- Well, that went way different than I expected.
You won. (chuckles)
- I did! I might not have gotten my magic back,
but at least I didn't die.
Actually, I don't think anyone died.
- Uh... except Casey, Jake.
- Oh yeah... He's real dead.
(chuckles)
- I missed you. - Really?
And, as always,
(together): Thanks for watching!
- Really?! You know I don't have... magic.
But I do have sadness and that is my power.
This season on CYSTM.
(dramatic music)
Oh no!
Come get some.
Let's make me hypothermic. Tear this body apart!
(disgusted grunts)
(together): The need for speed!
- I don't think I'm gonna survive this one.
Subtitling: difuze