I show you the real reason why a Crookes radiometer spins See the original video here: • Shining 100,000 Lumen ... Subscribe to my other channel here: / theactionlab
At UofA college Physics lab many many years ago I built a radiometer located inside a high vacuum chamber. I vacuum deposited aluminum on one side and carbon black on the other side of the microscope coverglass slides. Plotting rotation as a function of vacuum pressure with a 1KW light illuminating the radiometer, as the pressure dropped the radiometer spun away from the black side then as pressure continued to drop it stopped rotating as pressure continued to drop it began s[pinning away from the aluminum mirror side. Black is thermal, Mirror is photon pressure.
When you said different colours I thought of the light, which I wonder if it'll spin faster at higher frequencies or in reverse if meeting radio. Probably not the later.
I have use a magnifying glass and focused the sunlight on the white side making it spin in that direction then on the black side making it spin in that direction.
The brightness of the sun is about 127,000 lumens *per square meter*. About 98,000 lumens / m^2 after passing through the atmosphere. You can't compare that directly to the flashlight. We could estimate if we knew how wide the flashlight was, what angle the light emerges with, and how far away it was... or James could just tell us.
if its 100,000 lumens bright, and it is shined at something less than a meter away, it would be brighter than atmosphere influenced sunlight. if you press it up against the wall then it will be even more bright.
@@spiritorange8325 How do you know she wasn't just wrong? Which is obviously likely and all being that teachers are so known for telling students lies to manipulate things for some unknown reason. Derp
Photons don't have mass but they to have momentum. Maybe this photon momentum is providing a push to the vane dark sides....absorbing photon momentum. I used a blue laser like yours on the program.......Very good science (and safety) show I think.
What air is being heated? The bulb is under a vacuum...... I used to own one and my mother knocked it off a shelf. When it hit the floor it popped just like a flourescent tube does.
Hi,love your videos ! Can you make a video using the vacuum and a ultrasonic sensor like hc-sr04 and simulates mars air presure and see if it can move some fine dust?basically i'm curious if solar panels on mars rover can be clean with something cheap ..because they prefer to put some lab tools insead of wipers and the rovers are not design to last more than 2 years so dust on panels are not a concern..but anyways i'm just curious !
Static electricity from the dust devils cleans off the panels. This was discovered after The Martian movie came out, so they still thought Mark Watney would have to clean them off by hand.
Action Lab Shorts, to bad you won't read the message. I dare you to put that bulb into some tests to see how fast you can get it to spin in the other direction. 1. A bucket of ice 2. Your beverage chiller 3. Liquid nitrogen
All I’m hearing😭 “White side black side because black white radiation heat light bright side…” Time I’m nodding and gaslighting myself into thinking that I understand the explanation😂💗
Uhm... Would it be all possible to hookup a turbine to this to charge a battery... Would it actually be able to charge a battery... The sun does push out a lotta heat? Just wondering.
That's interesting. I'd always heard the 'pressure' explanation before. Apparently if you actually get a 100% vacuum the white side does spin more quickly.
How many Crookes radiometers can be powered by the same light source, and how fast would they need to spin to produce enough energy to exceed the energy needed to power the light?
@@pente12 not necessarily. The laws of thermodynamics are in balance across the entire universe, so if there is a surplus in one spot matched by a deficit (such as a Star being swallowed by a black hole) somewhere else, the laws remain unbroken.
@@pente12 More to the point, we don’t even use most of the energy we produce-by a huge amount. In the 1880’s, Oliver Heaviside decided to investigate how much energy was being produced versus how much energy landed in the wires. His result had thirteen zeroes in it. Shocked, he went and got a bigger envelope. His second answer also contained thirteen orders of magnitude. Realizing that no one would ever believe him, he declined to publish his findings officially. For context, this is like using one hurricane to drive one sailboat, and upon trying to drive a second sailboat using the same hurricane, being told “No! You must use a separate hurricane for each sailboat, or else you are breaking the laws of thermodynamics.” If I have twenty trillion dollars, and bread is two dollars per loaf, then if I want multiple loaves for my money, am I a believer in “free money” pseudoscience?
@@dr.jamesolack8504 as long as you believe that, you will never produce a surplus of energy. You must assume that the beast can be defeated before you will put in the effort to defeat it. Otherwise, you will desist at the first, most elementary obstacle.
Наука
"Why does it spin"
Because spinning is so much cooler than not spinning.
Or the ice cube creates a "vacuum" of IR light..
I think because its cooler to spin
yeah
He's the General, he wants it to spin. Now!
Simple
At UofA college Physics lab many many years ago I built a radiometer located inside a high vacuum chamber. I vacuum deposited aluminum on one side and carbon black on the other side of the microscope coverglass slides. Plotting rotation as a function of vacuum pressure with a 1KW light illuminating the radiometer, as the pressure dropped the radiometer spun away from the black side then as pressure continued to drop it stopped rotating as pressure continued to drop it began s[pinning away from the aluminum mirror side. Black is thermal, Mirror is photon pressure.
Genius explanation! I wonder if anyone had tried it with different colors to see if this can work!
When you said different colours I thought of the light, which I wonder if it'll spin faster at higher frequencies or in reverse if meeting radio. Probably not the later.
@@masscreationbroadcasts from what he said and demonstrated I am guessing that an infrared source would make a spin faster than say a blue light.
@@peterhunt1968 blue light has more energy than infrared
Didnt get it. Could anyone explain me why the pressure explanaition is false (the explanaition at 1:38 was Not understandable for me)
@@impossiblephysix2633bcuz it's bs
When Einstein visits Action lab
First, ActionLab must replicate the chronosphere.
what
His voice in the middle of the video sounds like a robot
When action lab visits Einstein.
He will appreciate this guy, I am sure
I had one of those when I was a kid. The light explanation was the one I was given then, since it was supposed to be in a vacuum.
excellent explanatory demonstration...thanks!
I have use a magnifying glass and focused the sunlight on the white side making it spin in that direction then on the black side making it spin in that direction.
That’s a brilliant explanation. Really good. Thank you.
I respect your work and passion and dedication ✅
How does your 100,000 lumen flashlight compare to full sunlight?
What?
27,000 lumens difference according to google
The brightness of the sun is about 127,000 lumens *per square meter*. About 98,000 lumens / m^2 after passing through the atmosphere. You can't compare that directly to the flashlight. We could estimate if we knew how wide the flashlight was, what angle the light emerges with, and how far away it was... or James could just tell us.
if its 100,000 lumens bright, and it is shined at something less than a meter away, it would be brighter than atmosphere influenced sunlight.
if you press it up against the wall then it will be even more bright.
@@Qaptyl*brighter
i love this channel so much.
Mind blowing. Thanks for the content
Did not know you could demonstrate it with ice. Thank you
You have my blessing sir.
Bro where tf did u get all this damn information
he is a scientist in himself
I learned this in about seventh grade.
So the color helps… what about using Black 3.0 or whatever it’s called, and also using the white version of it?
Anish Kapoor wanted to do that experiment, but he's not allowed.
This is why I say all we need is acoustic Heat or magnetic heat. Electricity same principle but you can use super fluid to cool it down
Action Lab could you explain why Turbo Charger Intercoolers are much more efficient when painted black?
Finally! Thanks. I always thought they had a vacuum inside.
I love the clear laser burn marks on the white side of the veins.
I wouldn't use that flashlight when you're telling spooky stories around the campfire if I was you.
Storyteller: And this is how i lost my eyesight.
Others: But you just turned on the light to tell us a story.
My science teacher told me that it was the photons pushing... 15 years later i discover that she lied 😢
There is a difference in lying and just being wrong...
@@PhantomPanic How do you know she didn’t lie?
@@spiritorange8325 How do you know she wasn't just wrong? Which is obviously likely and all being that teachers are so known for telling students lies to manipulate things for some unknown reason. Derp
@@PhantomPanic So you're agreeing with me then? We both agree she was wrong then
She was likely parroting what she'd been taught.
Excellent theory...👌👌☀️🔥
Flashlight: has a fan
My computer: doesn’t have one
Sed for u 💀...
Yes it's sed
Prolly junk macbook air
Great video
Man I love this guy's explanations
DAMN COOL explanation !!
Finally, a short(s)
Photons don't have mass but they to have momentum. Maybe this photon momentum is providing a push to the vane dark sides....absorbing photon momentum. I used a blue laser like yours on the program.......Very good science (and safety) show I think.
Man it would be cool to understand this
Awesome nfrared example
So the room temperature is just the sweet spot where the fan doesn't move at all
thanks
How can we use this information to create a "reverse microwave oven"-like device for freezing things quickly?
Want that flash light
I remember somewhere that light from your phone from something else that's that's bright can cause damage .
What air is being heated? The bulb is under a vacuum...... I used to own one and my mother knocked it off a shelf. When it hit the floor it popped just like a flourescent tube does.
Holy cow
Its gonna take off there🤣
Okayyy. Like I understood Everything you just said 🤣
Discord light mode : *infinite spin rotation!"
This reminds me of a famous scene.
Hi,love your videos ! Can you make a video using the vacuum and a ultrasonic sensor like hc-sr04 and simulates mars air presure and see if it can move some fine dust?basically i'm curious if solar panels on mars rover can be clean with something cheap ..because they prefer to put some lab tools insead of wipers and the rovers are not design to last more than 2 years so dust on panels are not a concern..but anyways i'm just curious !
Static electricity from the dust devils cleans off the panels. This was discovered after The Martian movie came out, so they still thought Mark Watney would have to clean them off by hand.
Action lab plz try this in vacuum
Crookes sounds like an attorneys name
Brother plz reply is lasik is really good and work I am 18 and wearing glasses since 10
the light hits it and moves it
Wow Amazing
I learn a lot of things here. Something that seems intuitive is not really at all.
Would it still spin clockwise below the equator
Simular to how a nuclear bomb detonation only leaves shadows on obstructed areas (shaded areas)
A positive expression on one side black/ white.
it works faster with hot light like an incandescent bulb because of this
Halo, can u make the test the high preasure water do cut a thing? and give the theory explanation?
Wonder what would happen if we used a laser
can u check the radiation from 6 g- that they are using now...
Can you explain laminar flow of water
So... Magic. 🙂
omg this guy is the best
"No matter if you're black oooooooor white"
_Michael Jackson_ 🕴️
We think !
Action Lab Shorts, to bad you won't read the message. I dare you to put that bulb into some tests to see how fast you can get it to spin in the other direction.
1. A bucket of ice
2. Your beverage chiller
3. Liquid nitrogen
🔥🔥
Name or brand of flashlight?
Cool!
What happens if you use LASERs instead of white light?
Hi, are you still uploading to this channel?
All I’m hearing😭 “White side black side because black white radiation heat light bright side…”
Time I’m nodding and gaslighting myself into thinking that I understand the explanation😂💗
What would happen if the vanes were in a vacuum?
It's already in a vacuum.
so can we make sun windmills?
Didnt get it. Could anyone explain me why the pressure explanaition is false (the explanaition at 1:38 was Not understandable for me)
What if the radiometer is scaled up a million fold. Would/could it turn a generator?
Hi sir, make a video on red Mercury
So if its in a vacuum?
have you done this in vacuum?
Cool
I think ive got an interesting Topic Suggestion. "What happens with light or flash inside a mirrored sphere?" Maybe you can figure that out.
I asked that question in high school General Science class about 55 years ago. Never got a straight answer.
Creating a vacuum in the bulb would be a good test. No air molecules.
I always thought these were vacuum inside. Really?
That would be interesting
Infinite power
You got your vector wrong
Sweet! My guess was correct
A 3 minutes video in action lab 'shorts'
What happens in a vacuum?
This is the perfect plot to earlier video
*Beyblade spinning in air to beyblade spinning automatically.*
Yoo we can do solar heat hybrid with heat turbine to make electricity then!?
If you bring this to chernobyl its gonna spin like a fucking helicopter
Why we cannot make a mechanism that winds itself ?
Uhm... Would it be all possible to hookup a turbine to this to charge a battery... Would it actually be able to charge a battery... The sun does push out a lotta heat? Just wondering.
a wind turbine, but for solar wind
That's interesting. I'd always heard the 'pressure' explanation before. Apparently if you actually get a 100% vacuum the white side does spin more quickly.
in a complete vacuum they don't spin at all
@@-TheRealChris they can, solar sailing.
@@clawer2969 Yes solar sails are a thing but Crookes Radiometer's are not solar sails and don't spin in a vacuum.
Bugger me! after 60+ years now I know. How many science classrooms have one of these, and teachers who don’t know how they really work.
So what flashlight is that?
Imalent ms18
How many Crookes radiometers can be powered by the same light source, and how fast would they need to spin to produce enough energy to exceed the energy needed to power the light?
that would violate the laws of thermodynamics
@@pente12 not necessarily. The laws of thermodynamics are in balance across the entire universe, so if there is a surplus in one spot matched by a deficit (such as a Star being swallowed by a black hole) somewhere else, the laws remain unbroken.
@@pente12 More to the point, we don’t even use most of the energy we produce-by a huge amount. In the 1880’s, Oliver Heaviside decided to investigate how much energy was being produced versus how much energy landed in the wires. His result had thirteen zeroes in it. Shocked, he went and got a bigger envelope. His second answer also contained thirteen orders of magnitude. Realizing that no one would ever believe him, he declined to publish his findings officially.
For context, this is like using one hurricane to drive one sailboat, and upon trying to drive a second sailboat using the same hurricane, being told “No! You must use a separate hurricane for each sailboat, or else you are breaking the laws of thermodynamics.” If I have twenty trillion dollars, and bread is two dollars per loaf, then if I want multiple loaves for my money, am I a believer in “free money” pseudoscience?
@@isaackellogg3493
Yes, necessarily.
@@dr.jamesolack8504 as long as you believe that, you will never produce a surplus of energy. You must assume that the beast can be defeated before you will put in the effort to defeat it. Otherwise, you will desist at the first, most elementary obstacle.
the reason why there's wind
nobody uses holy cow besides him
Is that how you would actually measure the speed of light for humans to be able to visually see and calculate in their brain by vision.
Could we not figure out a way to make a light driven engine?
Not today. But soon. 10-20 years, maybe.
Would it spin in a vacuum?
Yes. The less friction, the faster it will spin.
So it's just a really complicated thermometer
For a second I thought he is explaining racism
If you have a good IR illuminator light, you could make it work but not see the light doing the work.