I stream science LIVE M-W-F at 1pm PT. Thanks for being here!

School gets canceled+not going outside+no studying=mark rober thinking *ahhh i will be thier teacher now * =mark rober has no experience in teaching but still will teach (some how he needs a miracle for him to succeed in this)

REEEEEEEEE

*sees video title is about farting* Me - "That isn't gonna help me in my exam I'll watch it later." Also me - *Watches the video and gets all his doubts cleared of buoyancy chapter which is gonna come in my exam!" *WOW*

If he was my teacher that would be my favorite subject

will you continue to make videos if you are a school teacher?

noice

Keep your vids to less than 10 minutes and make them more interesting.

You're going to be a great teacher! (Already are)

Thanks! I finally understood buoyancy.

I wish I could back to high school just so he can be my teacher.

Wish he was my science teacher it'll be so cool

Before I watch or read anything in the comments im going to say no it doesn’t make you lighter because it’s a gas so it floats anyways so it’s not pushing down on your body - again maybe I’m wrong I’ll edit after

tin foile

Finnaly time to ask the real question

Which high school are you going teach in? Which country, state, city? Edit: I swear I'll move there to take classes from you you're the best teacher. Edit 2: Like so he can see and answer

Title: “does farting make you weigh less?” 1.3 million people: I don’t need sleep, I need answers.

Will a printer float in water

I’m in middle school, I was never crazy about science. But the way he explains everything related to science, it makes it much more intresting

If you become a school teacher, you’ll have less time to teach all of us 😢 but I still hope your dream comes true 🤓

I'm dense cause i have great mass haha

i thought the cans were not full!!!

I just beat my brother in a science test and I’m in 5th he’s in 11th you have taught me so much

2 year old clicks after seeing the word fart : mark making titanic with Barbies Lol yes I’m here in 2020 and yes it’s 5AM and again yes I’ve been watching these lessons since 2AM

You inspire me to become an Engineer

I KNEW IT Edit: FARTZ THOUGHT HE COULD GET ME BUT I WIN FART HAHAHAHAHHAHA

Precision is important and the answer to your question depends on how weight is defined. For the common definition that weight is mass times gravity, when you fart a tiny bit of mass leaves your body and you weigh less. If you define weight as the force measured by the operation of weighing it, now you have to introduce notions of support. I such cases then other forces like buoyancy can play a roll in determining the weight.

Why can’t you be my teacher

But what about how much your intestines compress the fart?

He just made the nastiest soup ever

no

*reads title * I DONT NEED SLEEP , I NEED ANSWERS

According to Einstein Gravity is not a force.

this guy taught me more in 30 mins than my teacher does it 2 days

distribution of wight

You could put a flat piece of metal under the block

I learned about density in third grade

Good to know for the biggest loser.! Eat some beans before the weigh in. and.....hold it in!

dont know why?, but i really liked ur handriting ; )

if mark was a teacher everyone would want to stay after class

Mark Rober what is your secret sign to go back live I think you do have a sign

Give this man the Netflix show that he deserves.

Float Sink Sink Float Float Sink Float Float

*This dude is better at explaining than all my teachers, combined*

Instead of focusing on covid, we are focusing on farts.... XDDDDD

Ummm you copied vsauce

Omg what a great message at the end🥺♥️ i needed that

We need more classes🥺

Bill Nye 2.0. Some sponsors to increase production value (and make it worth your time) would really make this thing a great value to, "dare I say....the world!"

So it means that big people farts more than an average people?

I passed a test because i remembered this.. lol

What would be really cool is if he recorded each of his classes and posted it on his channel every day so that even if we don’t have him as our teacher we can still learn something everyday!!

29:08 good advice toward the end

He’s my favorite science teacher and no one is gonna change my mind

I would enjoy the class if you were my teacher

Instead of doing more cool video's make a cure for coronavirus

As a physics teacher, I love these videos and would love to use them in my classes, but the auto-captions that they currently have do not meet ADA standards for my Deaf and Hard of Hearing students. ALnets makes it pretty easy to go through and edit the captions for grammar and accuracy (ie adding punctuation and correcting any words that did not transcribe properly). I know some of your videos have full and proper captions, would love to see that for this video as well!

I know

*worked at nasa* dream job hs teacher 👏

Covering the important questions of life. Farts

How come these videos are INTERLACED? 😫

This explains the burping scene in Willie Wonka! sidenote: I'm amazed you got through this without a single mention of farting in a pool.

So you just eat beans before doing push-ups and start farting to gradually make it harder? Haha

I'm a first year applied physics student, this is actually a better explanation than my teachers have on some of these subjects. Keep it up man!

But Mark! Farts are compressed inside of you! How much would a fart have to be compressed by to be more dense than regular air?

If u were in a vacuum, it would make you weigh less. Because if you have more molecules inside of you, then it weighs more. Overall, with variables, yes, before you fart, you weigh less. But in a vacuum, if you have a baloon filled with 10 grams of helium and a different baloon (same weight of baloon) with any other gas, it would weigh more. If it was measured in the same measurement of moles, it should be the same weight.

Were you friends with the king of random?

i wish he was my teacher!!!

You're literally like the most wholesome human ever!

When ur British and are 13 yet know all of this mark u should be a teacher in eng then u don’t have to talk like a 4 year old to 19 year olds

But isn't the fart pressurized in your body, so the density is higher?

Wished he was my science teacher

im watching this as im doing onlinr class so double online class my brain hurts i even wrong spelling grammar my braih

clicked the video to find out if farting makes one weigh less, finished the video understanding why old egg floats in water. 😂

Thanks i learn a lot

So basically if I fill a balloon with farts it will fly up

When he pulled off the last clue and I saw "farts are less dense than air" my freaking jaw dropped as it all clicked 😮 And my husband who is an engineer started laughing as I'm freaking out that farts make you weigh more!!!!!

XD

Making a boat

If you had a podcast, I would only listen to that!

After watching the video for 7 min, I actually thought about the question and remembered that since farting is "air" and air is bubbles and stuff which is trapped inside you, if you fart it out its like air in water which goes up, since it goes up air is less dense than water, so if that air is inside your body (which is less dense than water) and gets released, there wont be as much air therefore you are heavier albeit a little bit,

20:34 who else wanted to know the weight🤣

Ohhhhhh🙂😆

This video is a confusing mishmash of weight, mass, buoyancy, and displacement. And by ignoring compression it reached a questionable conclusion. A scuba tank certainly weighs less when empty.

I was just checking how to loose weight faster and then i end here 😂😂 And found how amazing his videos really are ..

He really likes dog Piles huh?

The sky is blue because of the reflection of the water around us with light. Edit: I know I'm late

Nobody: Me: Mr. Rober

Okay we can all agree that we wish we were Mark's neighbor or his uncle.

You can make the metal float by adding more metal inside that metal

Mark Rober: my dream job is to be a High school Physics Teacher Me: You have worked for Nasa Made the worlds largest Water gun Made sand into liquid and so much more. I Respect the fact you want to pass on your knowledge

It is actually impressive he wants to do his dream job more than work in NASA pls be my teacher

I love how he had a little play time with the Barbies

@Mark Rober I don't think this is right. Why should the density of a fart in the air around you (P = 1 atm) be the same as the density of a fart inside you (P > 1 atm)? Unlike the solid objects you demoed with, gaseous objects' density should depend strongly on the pressure around them, so if a fart is, say, half as dense as air when they're at the same pressure, but the pressure in your small intestine is triple the pressure of the air around you (I have no idea what the actual number is here), farting should make you weigh less because its density will be greater than air until you let fly.

Me too

Can u be my teacher

sinc

it matters if the same amount of water weighs less or more if it's less than it floats if it's more it sinks

Same

Please ╔═╦╗╔╦╗╔═╦═╦╦╦╦╗╔═╗ ║╚╣║║║╚╣╚╣╔╣╔╣║╚╣═╣ ╠╗║╚╝║║╠╗║╚╣║║║║║═╣ ╚═╩══╩═╩═╩═╩╝╚╩═╩═╝ To Mark Rober