Thanks for coming to class!! I WILL DO ONE FINAL CLASS NEXT WEEK, MAY 6TH!

7:36 Mark's voice cracks...

Merde Im French means sh**t

Ok i will just cut my apples with air now. How little area do you want?

I love this class

7:35 voice crack 😂

Wow. I didn't realize we use so much water just flushing the toilet!

Every time he said Preasure, I thought of Billy Joel’s song “Preasure”. And I think the first time I heard that song was when my Geophysics teacher played it during our weather unit.

check out a ALnets Channel called sach man

you are so smart

All

I love your video

Dude you could teach at any k12 for whatever salary you choose and I would move so my kid could attend

The fluid pressure is used to move the flight surfaces on planes just like at 17:00 (except the new planes, they use electricity)

this man is a legend

The royal pot conceivably tickle because eggplant demographically peck under a red hardcover. public, interesting vinyl

no safety glasses on you or your friend when you broke the brick despite the talk of safety as you did it. But at least your hat stayed on.

nothing against you Mark, but IMHO, you are just too loud, with almost too much effervesce, at least you're very exciting to watch and love what you do

Lmao you are awesome !

I love these lectures, I’m 26 and not in high school or college but the way he teaches makes you want to listen.

Hello

If everyone flushed at once the Earth would spin faster

How many orbeez that man dump into his house lmao.

Great video and demonstration as always! But I think you didn't take the front area of women"s shoes into consideration.

The amount of effort put into this is literally making me so grateful theres someone in the world like yoi

Empathy sent me, I mean, he didnt. But he mentioned this

I remember being a really young kid with my grandmother in town. There was a street performer doing entertainment and some magic. One thing he did was lay on a bed of nails and have a big man from the audience stand on his chest. Everyone was so impressed. So little old me had to jump out there and ruin the show and explain to the crowd that the nails would never hurt him because there's so many of them and they are so close together so his weight is distributed. If he layed on 3 nails he'd be hurt. To my surprise the man was no angry, he was so impressed a kid saw the science behind his trick lll

I was looking for the toilets flushing at one but i still learned something that i will actually need and remember

We tried KiwiCo, wasn't a fan

Maximun 720p? Just question, thanks!

No holes! Hopefully at least one

Me going to school for 8 hours a day : smol brain. Me watching mark for half a hour : infinite iq

Not worried about water leaking, Mark. Worried about blood! 😂

Dude, when I was young I used to think water towers were just tall indoor swimming pools where they teach swimming lessons 😭

Ok, so you're selling your videos as "Class". Then when you get all the underaged kids watch your videos, you suddenly plug a sponsor commercial? Bro, that's not done. Even though I really like that product, it's wrong. (and it's against ALnets and legal regulations. Content aimed at kids is not allowed to have commercials. (you should know, because you get asked this with every single upload and by uploading you sign off to understanding and knowing those rules.

the 804 people who didnt like this video are prob the people he says no 2 18:00

Mark should do a colab with colinfurze

This was so amazingly interesting

This is so cool!!!!!!!!!

It's amazing to me that 1.4M people watched a guy explain the most simple and basic physics concepts for 30minutes lol. You learn this stuff in Jr. High. Mark you are the GOAT.

You are a wonderfull teacher and person Mark.

I don't need sleep I need answers

Are the toilets empty or...

His enthusiasm is contagious.

If all toilets flushed at once, it would not make a dent in the Swamp.

hi

What’s under the hat? He always has one on.

if you were my teacher, I would want to stay even more in your class, this dude deserves an award

School Science Class: Boring... Mark's Science Class: Interesting!!!

the biggest crossover in history

You’re too adorable

Can you do an experiment or a simulation of a low pressure then it becomes a typhoon.. Iike to share it to my students for the subject environmental science and the topic is natural disaster.. And what happens when there is no plants or trees in the whole world. The question is what is the time taken to consume the oxygen and becomes carbon dioxide? Thank you sir

man i wish you were my physics teacher. Mine made us watch discovery channel each class and i literally learned nothing. Probably explained why i almost went on to almost fail engineering physics in college

So is the movie flushed away real or not real? 😂😂

Premier League

you inspied me to get into enginering

Who else really wants mark to teach there science class

This was actually a question ive been wondering for a long time lol

Don’t ask why I clicked on this video....

Like its useful for people who dont understand this easily, but once u understand, its boring

Do this again plsss

e

Put a Democrat in before you flush.

Me After Watching This Stream: I wish Mark Rober is my new Science Teacher.

unless the elephant is potty trained, i pick the woman

So this is the science behind cutting implements. Cool.

This video is so underrated 2,874 comments 1,369,659 views ??? Where are all the Mark Rober fans?

Welcome to science class

Can yo do more activitys with nature like the squrell course.

I wish my teacher is like you .

Hes that one teacher that you genuinely get sad when he yells at you

The Super Bowl halftime flush

hi

Ah yes the Moment when you jump put of a Parachute

All the sewer workers would be drowned!

I would think nothing. When watching shows like Dirty Jobs, it seemed that the sewage systems, even for large cities, was just a little "stream", if you will, of sewage flowing down a massive pipe. My guess would be that, even if every toilet in New York was flushed at the same time, the different paths sewage takes to reach the sewer would mean the load is spread over a pretty large area, and so it wouldn't just suddenly be a gushing torrent of sewage. Additionally, I would imagine sewage systems have redundancies and overflow lines to keep the system from blowing up. I remember when the giant fatberg was removed from a London sewer. Obviously that sewer line was not the only line, or else the entire community around that blockage would have backed up and wreaked havoc. But they didn't. Water might take a bit to refill, particularly in very densely populated areas, but plumbing is "primed" already (that is, my toilet tank already contains water for the next flush).

the best phy teacher

Something to think about: A blond in high heels might wreck your floors, but an elephant in the living room will destroy your entire house, because you know without a doubt, it will see a freak out and run!

Does anyone know that this actually happened in NY right after the series finally of mash. They experienced a huge loss in water pressure & a water shortage. You're welcome.

Random thought: Stars consist of tight energy force. They don't consist of pressure.

Zac king skit

The biggest question here is who did he borrow those heels from?

So when you get shot, you need to drink water and see if there are any leaks?

I can tell you what happens when all the toilets in one high school flush at once. And it wasn't pretty.

Did the elephant clean its feet before walking on the floors? I would have added food coloring to the liquid stuff so it shows up better on camera. You did a great job on this.

bottom

Mark Rober is keeping me sane tbh

I wish my teachers teached like this in school i would of learned more & not fell alseep looking at numbers in a book

When I was a kid we used to do a thing where the biggest guy in our group would lay flat on the floor & then we would position ourselves with 1 person at his head, 1 person at his feel & two people either side of him with 2 just below his shoulders & 2 people just below his butt. Then we would just use the pointer & middle fingers on both hands & lift him up off the ground. Pretty cool.

I would stay in school all week if he was the teacher!

Also, you put the tape on top of the nail/balloon thing different for the 2 than for the 12. For the 2, you put the tape all the way near the edge. For the 12, you placed it further towards the hinges. That can change the outcome of your experiment, right?

Your question was “which would you let into your house” not “which would you not let into your house”, right? I think my understanding of your solution was lost in translation.

You make me want to become smarter. My brain injury says otherwise.

if only my science class was like this.

What if the sewer got full

Oh kay! Live is never perfect. You handled it perfectly.

Why is the sanitary drain conected to the storm drain. gross af

Fakers be like OMG1!1!1!1!1 MARK ROBOR DIED

and thanks

When I first watched one of your vids is when I realized I wanted to go to college for robotics