SCIENCE CLASS #1- WHY Does Helium Make Your Voice Higher?

  Показвания 1,982,833

Mark Rober

преди година

Live stream with demos your brain will enjoy where we answer a basic question every time.
Does farting make you weigh more or less?!?! Place your guess and give me feedback too- forms.gle/gqNw9Ht83Vzo2va4A

Коментари
Mark Rober
Mark Rober преди година
FIIIIRSSSST!!!
killakira12
killakira12 преди 17 дни
Omg lol
Kayliegh's Korner
Kayliegh's Korner преди 20 дни
You would be a amazing physics teacher mark rober!!!!!!
Noobyyy
Noobyyy преди 26 дни
13,117 person to see this
AMIR NURIEV
AMIR NURIEV преди месец
inb4 500 replies
Nathan Garner
Nathan Garner преди месец
Last
A•F•N•N•I•A•M•F•E
A•F•N•N•I•A•M•F•E преди 12 дни
Dude I wish you were my teacher, you mange to make everything interesting I would not get bored
Andrew Xiao
Andrew Xiao преди 12 дни
Can't believe its already been over a year.
Arthur Birck
Arthur Birck преди 13 дни
So is there any sound in space?
hamza ahsan
hamza ahsan преди 12 дни
There are no particles for the sound vibrations too travel through
hamza ahsan
hamza ahsan преди 12 дни
No
Christian Guerrero
Christian Guerrero преди 16 дни
The Sience in school is way more boring but this is sience class is way more intresting
Cookin' With Lil'
Cookin' With Lil' преди 18 дни
Wow, I was not expecting to understand that, but I did. Nice job Mark
BlackNinja BS
BlackNinja BS преди 19 дни
What's the difference between v (= velocity) and a (= acceleration)?
son goku bg
son goku bg преди 20 дни
a nerveus man
WIDave0311
WIDave0311 преди 21 ден
*_What the heck is going on there?_*
Noel Ayanah
Noel Ayanah преди 23 дни
When Mark becomes a HS Physic teacher, I'm DEF going back to school. Do I care that I just graduated college and I'm in my 20s? No. Do I care that I actually sucked at physics in high school? No. Will I be old as Methuselah sitting in a high school class with my backpack and notebook? Yes, yes I will.
dynamite gamer
dynamite gamer преди 25 дни
oil is hevier than water lol
David Anderson
David Anderson преди 25 дни
Haha if he’s a science teacher/physics if the people know him on yt they will go crazy but he would make the classes so fun
block bear studios
block bear studios преди 25 дни
So hydrogen would also make ur voice higher?
kiara
kiara преди 28 дни
“im scared of public speaking” **wants to be a high-school teacher**
Harmony Quinn
Harmony Quinn преди 28 дни
Freedom Units 💀
Grifmister
Grifmister преди месец
I learn more from your channel than I do in school
Yixuan Yan
Yixuan Yan преди месец
my mind is overgrowing...
The awesome person Street
The awesome person Street преди месец
Loving the education love since.
Cody Thornburg
Cody Thornburg преди месец
Thank you!
Agosto Madden
Agosto Madden преди месец
Please consider subscribing
Henry Dwyer
Henry Dwyer преди месец
Your way better than my teacher i learn so much from you
Angel Jonguitud
Angel Jonguitud преди месец
;)
Challenge Accepted
Challenge Accepted преди месец
YOU CHEATED MAWK WOBER!
Challenge Accepted
Challenge Accepted преди месец
A
Sven's History Lab
Sven's History Lab преди месец
19:21 Mark Rober: help connect to others by making livestreams three times a week. Collin Furze: makes a six-foot tall corona-cycle
Luke Borho
Luke Borho преди месец
9:31 is crazy!
The Sharks
The Sharks преди месец
30:05 Did he just give MrBeast a shoutout thinking he is "not well known"?
Venasai
Venasai преди месец
I want mark to become my science teacher lmAo
Pratyush Badrinath
Pratyush Badrinath преди месец
He explained low mass / high mass and low area / high area without substituting and dividing. HE IS THE BEST PHYSICS TEACHER EVERRR
Lizz Thatvegan
Lizz Thatvegan преди месец
I can guarantee I would have passed science if you were my teacher. I hope your dream comes true because I think you could help influence younger people to pursue science. It took me until age 35 to not be afraid of it and part of that is because of your videos so...thank you for being awesome.
MrChickinMan
MrChickinMan преди месец
i love how the whole comment section is mainly about mark as a physics teacher, how he says his dream job is to be a high school physics teacher even though he used to work at nasa, and how he hates public speaking
Luke Ford
Luke Ford преди месец
I would actually do my homework
Kian
Kian преди месец
Who is still rewatching it in 2021?
Roselle Nuñez
Roselle Nuñez преди месец
the only online class i would like to attend
Kakashi Hatake
Kakashi Hatake преди месец
I never sucked helium EVER AND IM MAD AND REALLY SAD ABOUT THAT
Dia
Dia преди месец
1 year later.......hello.
Cunt
Cunt преди месец
You would definitely be the best physics teacher.
Swarm Gam3r
Swarm Gam3r преди месец
When your teacher does a whole topic on this and mark covers it all in 10 minutes 🤔
Pacey Hoskins
Pacey Hoskins преди месец
how cool would it be if mark was your teacher
heavygar
heavygar преди месец
at 17:33 merica
Leah Dunley
Leah Dunley преди месец
True! If he was a science teacher then I would not be bored at all ever!
BRAYAN PLACK
BRAYAN PLACK преди 2 месеца
fun fact it took the horn 11 secands to get to them
VINCENT VELASQUEZ
VINCENT VELASQUEZ преди 2 месеца
Cool
BRAYAN PLACK
BRAYAN PLACK преди 2 месеца
yeah kids do ask why alot
Thebest Day
Thebest Day преди 2 месеца
I wish he were my physics teacher, class would be so fun
YUNUS PIRIM
YUNUS PIRIM преди 2 месеца
if mark loves the word why then the world will be: why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? why? :)
YUNUS PIRIM
YUNUS PIRIM преди 2 месеца
mark should make M.R.F.R. (mark rober physics robot)
Ishuman Chaudhary
Ishuman Chaudhary преди 2 месеца
Tomorrow's someone's birthday. Dropping a video would be a treat for us, even for the celebration.. Love you Mark. Happy birthday in advance.
jdnh47
jdnh47 преди 2 месеца
THIS IS NOT THE CORRECT EXPLANATION. First, weight of the air molecules does NOT have much of an effect on the frequency at which vocal chords vibrate. Vocal cords vibrate at a rate primarily determined by the elastic force of the muscle. Think of a pure vs damped oscillator. Damping doesn't change the frequency by much. To change the frequency by even a small, but detectable amount, you'd need a significant change in damping force relative to the elastic force of the vocal muscles, and this simply isn't so. Further, this effect simply can't explain the drastic differences we hear in the video. But if the frequency doesn't change, why do the voices sound so different? First, you need to understand that nearly the entirety of your voice actually comes from resonance. THE VOCAL CHORDS THEMSELVES SIMPLY MAKE A HIGH BUZZING SOUND - kind of like the mouthpiece of a woodwind or brass instrument. IT IS THE SHAPE OF THE INSTRUMENT / YOUR VOCAL TRACT AND HEAD that gives your voice it's primary quality and tone. Now for the final piece of the explanation: A RESONANT CHAMBER RESPONDS TO WAVELENGTH, NOT FREQUENCY. (With your vocal tract and head consisting of many complex resonant chambers). Namely, a resonant chamber will resonate primarily with sounds that have a wavelength that is roughly the same length as it (with a factor 2 or 4 depending on open/closed tube), as well as harmonic wavelengths that are an integer fraction of the fundamental wavelength. THE FUNDAMENTAL (same length as resonant chamber, with a factor of 2 or 4 depending on open/closed tube) WAVELENGTH RESONATES THE MOST, WHILE SHORTER HARMONIC WAVELENGTHS RESONATE LESS AND LESS (the higher the harmonic is). Now consider: WHILE FREQUENCY IS THE SAME, WAVELENGTH GETS LONGER IN HELIUM because the speed of sound is greater (lighter molecules propagate sound faster, and remember relationship that (speed of wave) = (wavelength)*(frequency)). This means that LOWER FREQUENCIES GET FILTERED OUT IN HELIUM BECAUSE THE WAVELENGTH BECOMES TOO LONG TO RESONATE. Likewise, HIGH FREQUENCIES ARE AMPLIFIED BECAUSE THEIR WAVELENGTHS BECOME CLOSER TO / EXACTLY THE FUNDAMENTAL WAVELENGTH FOR A GIVEN RESONANCE CHAMBER. And thus your voice (which consists of many frequencies overlayed) sounds higher with helium because higher frequencies are amplified/resonate more and lower frequencies are suppressed. Also, you can think of it a bit like a high pass filter. Hope this clears things up, because there's a lot of contradicting stuff out on the internet, and I've done a lot of digging.
Awesome Guy
Awesome Guy преди 2 месеца
What school are you going to teach at, because I want to enroll in it now!
Patricia Anguiano
Patricia Anguiano преди 2 месеца
“5 seconds for every mile in freedom units uh I don’t know what it is in kilometers... ‘America!’” *raises his hand* That had me laughing so hard!
Timmeh
Timmeh преди 2 месеца
losrt
welkcub nairb
welkcub nairb преди 2 месеца
Can anyone explain the down votes? I do not get it
SUBMINALAURA
SUBMINALAURA преди 2 месеца
I learn more in this than i would learn in a single science lesson in class
Sean Corbett
Sean Corbett преди 2 месеца
my science teacher is sooooo boring... Mark would make things waaaayyyy better
irgikalisca
irgikalisca преди 2 месеца
11:05
Heshu Kawi
Heshu Kawi преди 2 месеца
im bout to do my 10th grade exams i saw the first clue and knew what it was. can i just say im very proud of myself :")
Daman Singh Chawla
Daman Singh Chawla преди 2 месеца
this is real science
Nagarjun Kashyap
Nagarjun Kashyap преди 2 месеца
The balance between a five year old and a PhD is a five and a half year old. Change my mind.
Shawn Gillen
Shawn Gillen преди 2 месеца
I’ve been an Architect for 20 years and have loved everything about science my entire life. I had NEVER had someone explain why helium makes your voice higher! I found myself smiling at that “Eureka” moment. My 16 year old son loves everything you’ve ever done and I’m glued to my screen every video as well. Keep up your enthusiasm; it’s addictive.
Sean Subando
Sean Subando преди 2 месеца
This is the first time I listen to class
Fredbear Adventures
Fredbear Adventures преди 2 месеца
To all scientist If anyone has a class with mark rover Make me trade lives with them
Captured with Iphone
Captured with Iphone преди 2 месеца
i have nothing to say other than, wow I LOVE U. like do more of these videos PLEASE:)
Seoyool Lee
Seoyool Lee преди 2 месеца
A simple explanation: Sound, is air vibrations that your eardrums hear. Sound is slower than the speed of light, and if anything exceeds the speed of sound, it creates a sonic boom. Your vocal chords create vibrations that create air vibrations to bump into molecules. Helium makes your vocal chords easier to move, making it high pitch. Sulfur hexafluoride makes the vocal chords move slower, making it lower pitched.
Arif Zamri
Arif Zamri преди 2 месеца
hey what you're doing ! Respect the class please
Charls Insigne
Charls Insigne преди 2 месеца
I'd be lucky if my teacher in science physics is you but dang I live in ph
Lynx Majic
Lynx Majic преди 2 месеца
7:30 "There's no fluid" Flap flap 😂😂😂
Fick Dich
Fick Dich преди 2 месеца
Why do you have to wait for a qualification? İf anything they have to check how overqualified you are
Lilli and Sara
Lilli and Sara преди 2 месеца
Mark: through your computer or phone Me who's watching on an ipad: ;-; why to I exist
Lucky 360
Lucky 360 преди 2 месеца
I don’t think this is correct. Your vocal cords vibrate at the same frequency for all 3 gasses. The reason your voice is higher with helium is because the speed of sound is faster through that gas due to its lower density (and similar compressibility) than air. This changes the resonances of your vocal tract by making it more responsive to high-frequency sounds, so the low parts of your voice are still there, they’re just not as prevalent as the higher pitch ones with the helium. Someone please correct me if I’m wrong though, this is just what was taught to me in physics.
adam king
adam king преди 2 месеца
You are the Keanu Reeves of physics. My daughter loves you and your videos and for that I thank you.
Prem Parekh
Prem Parekh преди 2 месеца
Does that mean that speaking with the sulfur gas would be harder? And speaking with the helium gas would be even easier than talking normally? Someone answer lol
ting durrans
ting durrans преди 2 месеца
Ur the ONLY one who I would watch teaching physics 1 like = 1 person that agrees
ting durrans
ting durrans преди 2 месеца
I love how many times Mr . rober kept saying “we’re live”
Chuck
Chuck преди 2 месеца
*pre Donald Trump* Americans: "MERICA!! YEEAH" *after Trump* Americans: 17:33 .........merica..
Crantrex
Crantrex преди 2 месеца
Like breathing in sulllffuuuuuuuuuuuuuur
Dreanne Music
Dreanne Music преди 2 месеца
Mark: my dream job was to be a highschool teacher Also mark: doesn't like public speaking
Magnús Ari Guðmundsson
Magnús Ari Guðmundsson преди 2 месеца
helium is lighter than air
Rumples & Things
Rumples & Things преди 3 месеца
Ty from Dude Perfect sucked in sulfur hexafluoride for DP's 2019 tour Cool Not Cool!
Michael Dombroskie
Michael Dombroskie преди 3 месеца
Left the mouse on the screen when playing a video like any teacher would.
Verzo Music
Verzo Music преди 3 месеца
Never been interested in this things, just curious BUT I love how this guy explains! I’ll be here if he drops more classes :)
Eli Adest
Eli Adest преди 3 месеца
I love how ppl with high voices actually have stronger muscles than ppl with low voices
Eli Adest
Eli Adest преди 3 месеца
I'll ignore the fact it's just vocal cords
Si Ci
Si Ci преди 3 месеца
Wait... in 10:02 he says that oil is heavier than water and it sinks. But is should not be exactly the opposite ?
mrwolf FN
mrwolf FN преди 3 месеца
Pls
MENTO
MENTO преди 3 месеца
Watching science while in online science class while doing a science test...bruh.
Drewdoesmusicstuff
Drewdoesmusicstuff преди 3 месеца
I think its live
The knowledge cube
The knowledge cube преди 3 месеца
13:47 a moment of silence for headphone users...
Spencer Monroe
Spencer Monroe преди 3 месеца
Dude I wish u was my teacher
Rathinam Santhosh
Rathinam Santhosh преди 3 месеца
I got so interested even though i hate science.He is a great teacher
ap1jp Animations
ap1jp Animations преди 3 месеца
Who else misses these videos?
Cooper Price
Cooper Price преди 3 месеца
I love his enthusiasm
Kyle Polson
Kyle Polson преди 3 месеца
As a Christian, it hurt to hear him say the Big Bang is real
Kyle Polson
Kyle Polson преди 2 месеца
@Luke actually, a lot of us don’t
Luke
Luke преди 2 месеца
christians believe the big bang is real...
Olivia thai
Olivia thai преди 3 месеца
He's so nice! And heck! I could understand!
Chloe Callahan
Chloe Callahan преди 3 месеца
i love all of your videos
Isimsiz
Isimsiz преди 3 месеца
I have been enlightened
Aniceto Ochoa
Aniceto Ochoa преди 3 месеца
It was cool
yoonus ismath
yoonus ismath преди 3 месеца
0:49 this is how kidnappers sound like on a phone call
sue Hull
sue Hull преди 3 месеца
Wish I would of had you as an instructor. Entertaining and enlightening.
Your McNugget
Your McNugget преди 3 месеца
My school does not tech this in junior high idk about high school but keep up the good work
The Charred One
The Charred One преди 3 месеца
This is the only class I will accept
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