We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/3TW06aP
I am a chemical engineer and I can assure she just summarised 10 hole chapter of Fluid mechanics in one video, just like she was baking a cake ......Thankyou
I'm so glad you produced these latest episodes on fluids. It was overlooked in my common core physics class in engineering school and it's obvious that the host is deep in her element.
I'm so glad for this video, I have a physics test tomorrow and this just completely explained a huge intimidating chapter in 10 mins...thank you so much!!
Watching the entirety of Crash Course has long been more valuable than some college degrees (From a learning standpoint. Good luck putting "CZcams" on the Education section of your resume.). This is the future of education. It's much cheaper than than paying a college professor for every 20 students and maintaining a luxury 24/7 young adult resort. I've been mostly ignoring the physics videos, because I studied all of this stuff at university for my engineering degree. Engineering degrees are very overrated, by the way. I've been unemployed about 25% of the time since I graduated, and I was only making $40k a year with no benefits the rest of the time (yes, at an actual engineering job). Saw a job posting today asking for an engineering degree (and then some) offering *up to* $15/hr. That American Dream stuff? Bullshit. You may as well get your education from CZcams.
Crash Course Physics vids are amazing and really underappreciated. I guess they work best when you're re-learning it or have some frame of reference, but they really tackled some deep concepts in quite possibly the most graspable and conceptually sound way possible for such a short format.
@@robertowisconetti2732 There is a reason why every music band on this planet sings with an american accent. If you only weren't this uneducated, you would understand
I can't help but think of the What If entry for "What would happen if one tried to funnel Niagara Falls through a straw?" "The flow rate over Niagara Falls is at least 100,000 cubic feet per second, which is actually mandated by law...A typical straw is about 7mm in diameter. To find out how fast the water flows, we just divide the flow rate by that area. If the result is greater than the speed of sound, our flow will probably be choked, which will lead to problems. (Math here) Apparently, our water will be going one-quarter of the speed of light."
This was excellent, I'm a mechanical engineer and I was curious as to how you'd explain this, you did it brilliantly. A huge well done to the whole team I wish you guys all the success for your hard work!
They COULD do lots. Literary Theory Semiotics Shakespeare Music Geology Engineering And on it goes. Ever more specialized. They could be busy in 2026 cranking out new courses.
Thaaaanks crash course! My textbook has a lot of unnecessary information and there is very less time to read through and filter it. This was really really helpful.
That was so good!! I want more fluid episodes!! I once built a laminar-flow fountain for a maker-event, and despite having lots of Intro physics experience, Thanks to transfering colleges, I never managed to have a course that cover hydrodynamics; so I had to learn everything from a dry textbook. This episode made a lot of that stuff much friendlier. I want more! Don't go to boring old harmonic-motion next (Yeah, I know this is all recorded weeks in advance, and planned way earlier....but....Y'all know this series needs a 2nd season.)
There are two things Shini explains nicely but without showing connection: one is relation between cross section area and velocity in situation when there is active flow inside pipe second is relation between pressure and output velocity of flow. In other words that cool visual example with garden hose can be somehow explaned with #1 but if you try to calculate velocity of stream you might have hard time doing it with #2
i have to thank you, thank you for making this video it really was helpful now i am gonna watch your videos your just straight forward u made this thing looks simple and general
We just started filming that stuff. Moved in to a new studio and tackled 3-4 episodes of that two weeks ago. Those episodes should start rolling out in September, I think. - Nick J.
What's true for water here, is also true for the air ducts ventilating your office or home. HVAC workers (usually) take great care to make sure the air duct's geometry remains constant through the entire duct. CAD programs are frequently used to help engineer consistent flow, and stamp out the parts on a plasma or laser CAM. (Source - Reconnected a Lockformer Vulkan to a PC and cut ducts for a welding shop during the recession).
Fluids in motion... had me thinking fluid dynamics, which had me thinking of Navier Stokes. But I see that these are fluid statics. Oh well, Dr. Somara does a nice job with her explanations. -- I admit to having a soft spot for numerical solutions to the Navier Stokes equations, whether they be Finite Element, Finite Difference, Smoothed Particle Hydrodynamic, or Finite Volume.
I don't know how you knew, but this is just perfect timing! I'm looking to collect rainwater from the roof and use it to water the grass in the dry season. all the research I've done online and this has been a major help. thank you!
Now I know why if you squeese the tip of a water hose, why it jets further away, since the water flowing in the hose pipe is constant, and its velocity in the pipe is constant, if you squeese the tip of the pipe, then all that water must escape through a restricted opening end hence its velocity must increase to maintain its flow volume mass
Bernoulli's Principle is what confuses me here. Intuitively pressure (force on a given area) is higher when the fluid flow is faster. As she states here, it's the opposite. Can anyone offer a better explanation or analogy that would clarify this?
Pressure is molecules hitting the walls. The molecules all move in random direction normally, but if you make them move down the pipe, they don't hit the walls as much. You're relieving the pressure by letting liquid move rather than trapping it in one place.
For the sake of simplicity, let us look at a single molecule. Imagine a single dot representing a molecule of some sort of gas. And Imagine it leaves a red trail wherever it goes. If i were to release him at the start of a 10 meter pipe with no initial velocity, you'll see the red line darting randomly in all directions, changing direction whenever it hits the wall. You will be able to notice that the line changed direction many times before finding its way out of the pipe. Now, let us shoot a gas molecule from the start of the pipe in a straight line in the direction of the end of the pipe. The molecule will still hit the walls a couple of times, and if you'd actually count the contact points of the red line, he will averagely almost hit the walls the same amount of times per second as the first experiment. But, because he moves down the pipe faster, he stays in one place far less, and he hits the wall far fewer times because he just rushes out of the pipe before even getting the chance to bounce around. Which means each molecule will spread their force to a wider area, while that force is staying not affected by the initial velocity we gave it (as it is perpendicular to the pipe in all directions). Pressure is a mesurement of how much force the molecules exert on their sorrounding when they interact. In a pipe the behavior of the pressure is unintuitive because you push the molecules to the only direction they won't feel much resistance, and cause them to interact less with the pipe (perpendicular velocity). [btw, all this stands only for a straight pipe, when you actually make a turn, velocity might cause a lot of force being applied to the turning point]
In this case, think of the fluid pressure the same as with a gas. It's the pressure pushing on the walls, not the water's velocity when it comes out of the pipe. Low speed high pressure. High speed low pressure.
Wow, great presenter! if only a little fast I had to watch the video a few times to get all the information and equations down. I never knew fluid dynamics could be so interesting.
Thank you for your fight to englighten the world! Knowledge & progress are enemies of ignorance & terror. Let's build universes instead of death and destruction! Building A Universe Competition #BAUniC
We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: apple.co/3d4eyZo
Download it here for Android Devices: bit.ly/3TW06aP
I am a chemical engineer and I can assure she just summarised 10 hole chapter of Fluid mechanics in one video, just like she was baking a cake ......Thankyou
while figuring out the velocity of my water spout, I drowned my garden.
Half of my fluid dynamics course in under 10 mins!
I'm so glad you produced these latest episodes on fluids. It was overlooked in my common core physics class in engineering school and it's obvious that the host is deep in her element.
I'm so glad for this video, I have a physics test tomorrow and this just completely explained a huge intimidating chapter in 10 mins...thank you so much!!
college stuff??
Can totally relate. My textbook is so cluttered with info that I don't know what to study and what not to.
I wish this video was made a month earlier, I learned the exact same in college. Great video, this is some solid university stuff
"solid". Ba dum tsssss....
Watching the entirety of Crash Course has long been more valuable than some college degrees (From a learning standpoint. Good luck putting "CZcams" on the Education section of your resume.). This is the future of education. It's much cheaper than than paying a college professor for every 20 students and maintaining a luxury 24/7 young adult resort.
I've been mostly ignoring the physics videos, because I studied all of this stuff at university for my engineering degree.
Engineering degrees are very overrated, by the way. I've been unemployed about 25% of the time since I graduated, and I was only making $40k a year with no benefits the rest of the time (yes, at an actual engineering job). Saw a job posting today asking for an engineering degree (and then some) offering *up to* $15/hr. That American Dream stuff? Bullshit. You may as well get your education from CZcams.
i'm learning that in high school
leadfoot9x good luck mate. I still have some years ahead of me
I'm learning in elementary school grade 2
Crash Course Physics vids are amazing and really underappreciated. I guess they work best when you're re-learning it or have some frame of reference, but they really tackled some deep concepts in quite possibly the most graspable and conceptually sound way possible for such a short format.
Imagine listening to audiobooks read by this woman.... ~heaven~
You are joking, right? Her accent is irritating
@@marekjanik9962 I really can't stand it. And what's the rush with all these numbers all over the screen? This is supposed to teach young people?
@@marekjanik9962 are u kidding me ryt now
@@robertowisconetti2732 There is a reason why every music band on this planet sings with an american accent. If you only weren't this uneducated, you would understand
Marek Janik British accent is the most pure form of english. They made english lol
Physics should be taught this way 😍
Yessssss!!!!!😄😄😄
Wait whut..? You replied yourself my man ?
Came to learn about physics, accidentally fell in love, also learned about physics. Good day.
A good day indeed
She's got such attractive brown eyes hahaha
@Zeus Jansen G. Lujares
Out of all things to compliment, I don't think eyebrows could impress anyone
I was just about to write the very same thing. It's like a school boy crush totally void of lust.
Luxurious 03 what do you mean? He complimented her eyes not her eyebrows?
I can't help but think of the What If entry for "What would happen if one tried to funnel Niagara Falls through a straw?"
"The flow rate over Niagara Falls is at least 100,000 cubic feet per second, which is actually mandated by law...A typical straw is about 7mm in diameter. To find out how fast the water flows, we just divide the flow rate by that area. If the result is greater than the speed of sound, our flow will probably be choked, which will lead to problems.
(Math here)
Apparently, our water will be going one-quarter of the speed of light."
+
Assuming it was confined yes
were you reading a haribo gummy bear review?
It'll overflow through sides.
He is assuming all the water is going through the straw and that the walls of the straw can hold the pressure.
This was excellent, I'm a mechanical engineer and I was curious as to how you'd explain this, you did it brilliantly. A huge well done to the whole team I wish you guys all the success for your hard work!
I love this part, i have some exams about fluids, and it's realy hard, so this is of great help. :)
Crash Course Physics is the best Crash Course. Just thought I'd mention that.
The Feynman Lectures made it to the foreground, nice!
I think that this video has got to be one of the clearest in the series.
These videos are saving me from first year engineering. Hope you also do a series on engineering materials. :)
Thank you so much, people who are behind the channel are angels, because of you I’m getting good grades in physics
Are you people gonna do linguistics?
PLEASE I would love another good linguistics channel. That would be terrific!
They COULD do lots.
Literary Theory
Semiotics
Shakespeare
Music
Geology
Engineering
And on it goes. Ever more specialized. They could be busy in 2026 cranking out new courses.
+TimeAndChance I truly hope so. Best channel on CZcams, easily. Passed some APs with this.
Possibly, but John Green tends to be a prescriptivist, so I'm not really sure how useful a Crash Course Linguistics would be...
deserves more recognition.
these videos are better than mit professors
I just love this channel that’s all i can say
The fact that you just made a 10 minute video about one of the most difficult courses I have ever taken doesn't make me feel very good :(
Thaaaanks crash course! My textbook has a lot of unnecessary information and there is very less time to read through and filter it. This was really really helpful.
You are one of the most wonderful physics teacher i have ever known☺
Damn even the ad for this video was smart and nerdy, this is my new favourite channel!
It's amazing u coverd total physics within 10 minutes ..hats up to u
everything on single single tutorial about fluid mechanics thank u..
Thank you, crash course physics.
I've only seen 3 minutes. You are an awesome teacher.
That was so good!! I want more fluid episodes!! I once built a laminar-flow fountain for a maker-event, and despite having lots of Intro physics experience, Thanks to transfering colleges, I never managed to have a course that cover hydrodynamics; so I had to learn everything from a dry textbook. This episode made a lot of that stuff much friendlier. I want more! Don't go to boring old harmonic-motion next (Yeah, I know this is all recorded weeks in advance, and planned way earlier....but....Y'all know this series needs a 2nd season.)
There are two things Shini explains nicely but without showing connection:
one is relation between cross section area and velocity in situation when there is active flow inside pipe
second is relation between pressure and output velocity of flow.
In other words that cool visual example with garden hose can be somehow explaned with #1 but if you try to calculate velocity of stream you might have hard time doing it with #2
Thanks for putting knowledge in my brain
currently studying fluild mechanics this semester. Fun yet very challenging.
1:17 Knowing nintendo they would probably give them a copyright strike for that, and probably give me on for mentioning it.
Thank you
Can you guys do another video on vectors explaining dot and cross product :) i really need for my exam
I guess the exam is already over, but if you still want to learn something about vectors, watch 3blue1brown's series on vectors
khan academy has a brilliant video series on vectors with great animation and intuition
i have to thank you, thank you for making this video it really was helpful now i am gonna watch your videos your just straight forward u made this thing looks simple and general
FINALLY thank you for explaining much much better than my 2nd year lecturer why we cancel things in bernoulli
Thankyou so much!!
Dr Shini Somara truly has it all. She is uniquely beautiful, has a wonderful disposition, and is obviously intelligent.
Honestly I love this channel
Love this Channel and this particular series but I'm interested to know when you guys are going to do electricity and electrical devices.
We just started filming that stuff. Moved in to a new studio and tackled 3-4 episodes of that two weeks ago. Those episodes should start rolling out in September, I think.
- Nick J.
my brain is broken
I love this series
Very interesting. We were never taught these things in school. I learnt something new in this episode.
This is so helpful for my course
What's true for water here, is also true for the air ducts ventilating your office or home. HVAC workers (usually) take great care to make sure the air duct's geometry remains constant through the entire duct. CAD programs are frequently used to help engineer consistent flow, and stamp out the parts on a plasma or laser CAM. (Source - Reconnected a Lockformer Vulkan to a PC and cut ducts for a welding shop during the recession).
I could hear Dr. Shini say "lawn mower" all day long.
I am a 22-year-old still watching these videos. College isn't worth it guys
Awesome explaination.....👏👏
Thank you so much guys you help me to finish my chapter in just 20 minutes
Fluids in motion... had me thinking fluid dynamics, which had me thinking of Navier Stokes. But I see that these are fluid statics. Oh well, Dr. Somara does a nice job with her explanations. -- I admit to having a soft spot for numerical solutions to the Navier Stokes equations, whether they be Finite Element, Finite Difference, Smoothed Particle Hydrodynamic, or Finite Volume.
As for static flow and for some teenage students with hormonal problems it is quite good.
Gotta love those spherical cows in vacuum.
You had me at 'algebra magic.'
Now I want to see one on Navier-Stokes equation and CFD
I don't know how you knew, but this is just perfect timing! I'm looking to collect rainwater from the roof and use it to water the grass in the dry season. all the research I've done online and this has been a major help. thank you!
thats actually cool, good luck
Amazing way of teaching and making it beautiful to see, listen and understand. Thank you so much !
the last example was exactly what I needed to help me on another problem I am working on! and this video was just uploaded!
Huge theories.Simply & creatively.I love it.THANK YOU CRASH CAUSE....
This summed up an entire semester of fluid mechanics. Great video!
she is freaking gorgeous
Torricelli theroum is just wow here's when you find the beauty of nature and it's all just physics
amazing seriesss
Absolutely Fantastic Video
this woman right here carried me through my Civil engineering degree. she summaries 7 of my classes in each video lol
Cant wait for next video of SHM great work crashcourse keep it up
I love the video and info but I love the presenter more!
Now I know why if you squeese the tip of a water hose, why it jets further away, since the water flowing in the hose pipe is constant, and its velocity in the pipe is constant, if you squeese the tip of the pipe, then all that water must escape through a restricted opening end hence its velocity must increase to maintain its flow volume mass
U helped me with homework during the lockdown 2020
Corona
Fresh air finally
You explain things soo easily
Too bad it is incorrect. See my recent comments.
Well explained 🎉🎉🎉
Bernoulli's Principle is what confuses me here. Intuitively pressure (force on a given area) is higher when the fluid flow is faster. As she states here, it's the opposite. Can anyone offer a better explanation or analogy that would clarify this?
Pressure is molecules hitting the walls. The molecules all move in random direction normally, but if you make them move down the pipe, they don't hit the walls as much.
You're relieving the pressure by letting liquid move rather than trapping it in one place.
For the sake of simplicity, let us look at a single molecule.
Imagine a single dot representing a molecule of some sort of gas. And Imagine it leaves a red trail wherever it goes.
If i were to release him at the start of a 10 meter pipe with no initial velocity, you'll see the red line darting randomly in all directions, changing direction whenever it hits the wall. You will be able to notice that the line changed direction many times before finding its way out of the pipe.
Now, let us shoot a gas molecule from the start of the pipe in a straight line in the direction of the end of the pipe. The molecule will still hit the walls a couple of times, and if you'd actually count the contact points of the red line, he will averagely almost hit the walls the same amount of times per second as the first experiment. But, because he moves down the pipe faster, he stays in one place far less, and he hits the wall far fewer times because he just rushes out of the pipe before even getting the chance to bounce around. Which means each molecule will spread their force to a wider area, while that force is staying not affected by the initial velocity we gave it (as it is perpendicular to the pipe in all directions).
Pressure is a mesurement of how much force the molecules exert on their sorrounding when they interact. In a pipe the behavior of the pressure is unintuitive because you push the molecules to the only direction they won't feel much resistance, and cause them to interact less with the pipe (perpendicular velocity).
[btw, all this stands only for a straight pipe, when you actually make a turn, velocity might cause a lot of force being applied to the turning point]
In this case, think of the fluid pressure the same as with a gas. It's the pressure pushing on the walls, not the water's velocity when it comes out of the pipe. Low speed high pressure. High speed low pressure.
random motion vs directed motion of the same atoms. Joshua Argo answer is almost perfect. Chaos vs order. Kinetic energy vs potential energy :-)
you helped me a lot in preparing for ECAT exam.
really? these videos are pretty basic
Good teacher
That was awesome! :) Thank you for putting this amazing content up.
This was very well explained.
Worth more than my 3 weeks of lectures..
Wow, great presenter! if only a little fast I had to watch the video a few times to get all the information and equations down. I never knew fluid dynamics could be so interesting.
She just makes me want to learn this.
Can anyone explain by rearranging the 8:12 equation. How is it same as the v^2=Vo^2+2ax?
Simply it is cool! Nice presentation! Thanks!
I just simply love her...
THANKS FOR MAKING THIS VIDEO !!
I am loving crash course....U r explaining everything very beautifully....Thanks ....!!!!!!!!😊😊😊😊😊😊😊
Thanks for Making My Physics IA logical
Eating Pizza with Hot Sauce, Ice Cream, and oranges is only best eaten while learning about fluid mechanics.
That's an interesting combination
Spiiiiiiiiiiîiiiiicy.
Is it sriacha hot sauce?
I can't spell.
Thank you for your fight to englighten the world!
Knowledge & progress are enemies of ignorance & terror. Let's build universes instead of death and destruction! Building A Universe Competition #BAUniC
That's incredible work ! Thank you so much !
I was waiting for Bernoulli's principle.
This is how planes fly. haha
Very informative and enjoyable to watch.
Wow....... that's so helpful , Thanks
Very informative and beautifully explained. Thank you
I LOVE U CRASH COURSE!!!!
Thank you for helping me
Great video
0.75 speed is life
CZcams! for once your ridiculous suggestions have struck gold! .... now to find the first of these videos...