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
@ceasarnoris1543
Жыл бұрын
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
@gingsSon
8 жыл бұрын
Half of my fluid dynamics course in under 10 mins!
@tobangafeufeu
8 жыл бұрын
I wish this video was made a month earlier, I learned the exact same in college. Great video, this is some solid university stuff
@harrisonharris6988
8 жыл бұрын
"solid". Ba dum tsssss....
@TheRealE.B.
8 жыл бұрын
Watching the entirety of Crash Course has long been more valuable than some college degrees (From a learning standpoint. Good luck putting "KZitem" 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 KZitem.
@pedrorvd1
8 жыл бұрын
i'm learning that in high school
@tobangafeufeu
8 жыл бұрын
leadfoot9x good luck mate. I still have some years ahead of me
@nuclearwarfareaw
8 жыл бұрын
I'm learning in elementary school grade 2
@flyingtoaster
8 жыл бұрын
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.
@divya6050
7 жыл бұрын
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!!
@jarednitta1934
7 жыл бұрын
college stuff??
@deekshas3936
4 жыл бұрын
Can totally relate. My textbook is so cluttered with info that I don't know what to study and what not to.
@RainierKine
8 жыл бұрын
while figuring out the velocity of my water spout, I drowned my garden.
@yeknomican
6 жыл бұрын
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.
@Redemmaw
8 жыл бұрын
Imagine listening to audiobooks read by this woman.... ~heaven~
@marekjanik9962
6 жыл бұрын
You are joking, right? Her accent is irritating
@alext9067
5 жыл бұрын
@@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?
@robertowisconetti2732
4 жыл бұрын
@@marekjanik9962 are u kidding me ryt now
@marekjanik9962
4 жыл бұрын
@@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
@robertowisconetti2732
4 жыл бұрын
Marek Janik British accent is the most pure form of english. They made english lol
@fighterfas
8 жыл бұрын
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!
@Sureshsadanandan
5 жыл бұрын
Physics should be taught this way 😍
@Sureshsadanandan
5 жыл бұрын
Yessssss!!!!!😄😄😄
@ashwinbabu6837
4 жыл бұрын
Wait whut..? You replied yourself my man ?
@Dusan93etr
8 жыл бұрын
I love this part, i have some exams about fluids, and it's realy hard, so this is of great help. :)
@michaelolson7626
8 жыл бұрын
Came to learn about physics, accidentally fell in love, also learned about physics. Good day.
@arthikalexander316
5 жыл бұрын
A good day indeed
@zeusjanseng.lujares7428
4 жыл бұрын
She's got such attractive brown eyes hahaha
@AethernaLuxen
4 жыл бұрын
@Zeus Jansen G. Lujares Out of all things to compliment, I don't think eyebrows could impress anyone
@zachass3724
4 жыл бұрын
I was just about to write the very same thing. It's like a school boy crush totally void of lust.
@joshuaerbe289
4 жыл бұрын
Luxurious 03 what do you mean? He complimented her eyes not her eyebrows?
@geniusmp2001
8 жыл бұрын
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."
@vampyricon7026
7 жыл бұрын
+
@jazethegreat3944
7 жыл бұрын
Assuming it was confined yes
@TheTroubleshooter
6 жыл бұрын
were you reading a haribo gummy bear review?
@kun490
6 жыл бұрын
It'll overflow through sides.
@joshlete
6 жыл бұрын
He is assuming all the water is going through the straw and that the walls of the straw can hold the pressure.
@TrevorSchmahl
8 жыл бұрын
The Feynman Lectures made it to the foreground, nice!
@kant12
8 жыл бұрын
Crash Course Physics is the best Crash Course. Just thought I'd mention that.
@MichaelChenAdventures
Жыл бұрын
these videos are better than mit professors
@mrluna4297
8 жыл бұрын
These videos are saving me from first year engineering. Hope you also do a series on engineering materials. :)
@SheikhEddy
8 жыл бұрын
I think that this video has got to be one of the clearest in the series.
@julietmag7436
5 жыл бұрын
Thank you so much, people who are behind the channel are angels, because of you I’m getting good grades in physics
@prashantnook
8 жыл бұрын
Can you guys do another video on vectors explaining dot and cross product :) i really need for my exam
@skylla171
8 жыл бұрын
I guess the exam is already over, but if you still want to learn something about vectors, watch 3blue1brown's series on vectors
@ninjakille316
8 жыл бұрын
khan academy has a brilliant video series on vectors with great animation and intuition
@SunriseFireberry
8 жыл бұрын
Are you people gonna do linguistics?
@TanookiOshawott64
8 жыл бұрын
PLEASE I would love another good linguistics channel. That would be terrific!
@SunriseFireberry
8 жыл бұрын
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.
@abbygus1
8 жыл бұрын
+TimeAndChance I truly hope so. Best channel on KZitem, easily. Passed some APs with this.
@ashtarbalynestjar8000
8 жыл бұрын
Possibly, but John Green tends to be a prescriptivist, so I'm not really sure how useful a Crash Course Linguistics would be...
@stressedout3649
8 жыл бұрын
deserves more recognition.
@bintraza7679
5 жыл бұрын
You are one of the most wonderful physics teacher i have ever known☺
@deekshas3936
4 жыл бұрын
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.
@lwazithusi773
2 жыл бұрын
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
@dkh321
4 жыл бұрын
Amazing way of teaching and making it beautiful to see, listen and understand. Thank you so much !
@bhrisvfyapn
8 жыл бұрын
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
@lisakawa7486
6 жыл бұрын
I just love this channel that’s all i can say
@StephenGillie
6 жыл бұрын
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).
@flariothegamer6929
8 жыл бұрын
1:17 Knowing nintendo they would probably give them a copyright strike for that, and probably give me on for mentioning it.
@TruongNguyen-bl4vd
6 жыл бұрын
currently studying fluild mechanics this semester. Fun yet very challenging.
@gilian2587
8 жыл бұрын
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.
@AndrewPa
6 жыл бұрын
As for static flow and for some teenage students with hormonal problems it is quite good.
@roan33
8 жыл бұрын
my brain is broken
@mkb6418
8 жыл бұрын
Very interesting. We were never taught these things in school. I learnt something new in this episode.
@verdatum
8 жыл бұрын
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.)
@trinibro2010
8 жыл бұрын
Love this Channel and this particular series but I'm interested to know when you guys are going to do electricity and electrical devices.
@crashcourse
8 жыл бұрын
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.
@JackKnightPlays
5 жыл бұрын
I've only seen 3 minutes. You are an awesome teacher.
@mgabrielle2343
4 жыл бұрын
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
@vinodtalks8099
6 жыл бұрын
It's amazing u coverd total physics within 10 minutes ..hats up to u
@zachass3724
4 жыл бұрын
Dr Shini Somara truly has it all. She is uniquely beautiful, has a wonderful disposition, and is obviously intelligent.
@webcypher6829
8 жыл бұрын
Damn even the ad for this video was smart and nerdy, this is my new favourite channel!
@JatSingh
8 жыл бұрын
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 :(
@eyosiyasyohannis3790
4 жыл бұрын
everything on single single tutorial about fluid mechanics thank u..
@Vividlyvanilla
5 жыл бұрын
Thanks for putting knowledge in my brain
@josephphan8853
7 жыл бұрын
Thank you, crash course physics.
@JjoshD
8 жыл бұрын
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!
@warriorofesper661
8 жыл бұрын
thats actually cool, good luck
@azizghalib495
5 жыл бұрын
Thank you. I just can't find in Bernoulli's equation the relation between velocity of the water coming out of the spout and the cross-sectional area of the spout. Could anyone, please, explain why does the fluid's velocity increase when we narrow the outlet?
@IoEstasCedonta
8 жыл бұрын
Gotta love those spherical cows in vacuum.
@virtualuniverse4861
8 жыл бұрын
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
@Elymichie
8 жыл бұрын
the last example was exactly what I needed to help me on another problem I am working on! and this video was just uploaded!
@FashionRoadman
6 жыл бұрын
This is so helpful for my course
@Rose_idek
Жыл бұрын
FINALLY thank you for explaining much much better than my 2nd year lecturer why we cancel things in bernoulli
@tabrezahmed1000
5 жыл бұрын
Can anyone explain by rearranging the 8:12 equation. How is it same as the v^2=Vo^2+2ax?
@ghostmailgg
8 жыл бұрын
I love this series
@loshithasahan7164
6 жыл бұрын
Huge theories.Simply & creatively.I love it.THANK YOU CRASH CAUSE....
@MephLeo
8 жыл бұрын
I could hear Dr. Shini say "lawn mower" all day long.
@AthanCondax
8 жыл бұрын
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?
@Rhaegar19
8 жыл бұрын
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.
@FlyingJetpack1
8 жыл бұрын
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]
@kjpmi
8 жыл бұрын
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.
@AndrewPa
6 жыл бұрын
random motion vs directed motion of the same atoms. Joshua Argo answer is almost perfect. Chaos vs order. Kinetic energy vs potential energy :-)
@christophershortreed1937
7 жыл бұрын
If I put my thumb over the spout of the last example, it will still only go as high as the water lever of the barrel? So will calculating the height the water coming out of the garden hose allow you to know the pressure of the tap?
@amandaluise92
8 жыл бұрын
That was awesome! :) Thank you for putting this amazing content up.
@ramuannam7020
5 жыл бұрын
Awesome explaination.....👏👏
@RajeevKumar-tb5dj
6 жыл бұрын
Thankyou so much!!
@grndragon7777777
8 жыл бұрын
Thank you
@AdamLamnini-p7w
Жыл бұрын
this woman right here carried me through my Civil engineering degree. she summaries 7 of my classes in each video lol
@rajendratrivedi2374
7 жыл бұрын
Thank you so much guys you help me to finish my chapter in just 20 minutes
@aniketkumbharikar6086
4 жыл бұрын
I am loving crash course....U r explaining everything very beautifully....Thanks ....!!!!!!!!😊😊😊😊😊😊😊
@slengoslengaw8510
6 жыл бұрын
Very informative and beautifully explained. Thank you
@colinng1253
6 жыл бұрын
I hope this isn't too dumb a question, but I've been confused about this and trying to work it out mathematically. In the last example where she demonstrated torricelli's theorem by pointing the spout straight up, wouldn't velocity be affected by the diameter of the spout too? so if the diameter was decreased, the water would be able to go higher than the surface of the water in the barrel right? Thanks in advance for anyone who can answer my question!
@isabelleyap1779
4 жыл бұрын
Hi, this video on 'Fluids in Motion' was very helpful. I was wondering if you have a video on 'Conservation of Momentum', talking about Control Volumes, the Development of Momentum Principle and Momentum-Flux Correction factor.
@TheFireflyGrave
8 жыл бұрын
You had me at 'algebra magic.'
@kayceegemaol8727
4 жыл бұрын
This summed up an entire semester of fluid mechanics. Great video!
@aah2442
4 жыл бұрын
I am a 22-year-old still watching these videos. College isn't worth it guys
@jusjaisinghani908
8 жыл бұрын
Cant wait for next video of SHM great work crashcourse keep it up
@franciscocarmonasarria632
5 жыл бұрын
she is freaking gorgeous
@gappythegoat5397
4 жыл бұрын
U helped me with homework during the lockdown 2020 Corona
@taitaisanchez
8 жыл бұрын
Shini reminds me of Symmetra in real life but way cooler :O
@dao2604
6 жыл бұрын
0.75 speed is life
@gurushajuneja1946
7 жыл бұрын
Torricelli theroum is just wow here's when you find the beauty of nature and it's all just physics
@abdulrahmanhazim6090
Жыл бұрын
Honestly I love this channel
@simonwhite4330
5 жыл бұрын
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.
@edwardranzenbach4319
5 жыл бұрын
Great video. I was looking for information about what happens to liquids with multiple branch outflows, given that some outflows may have different conduit diameters and resistances. I think I understand that the total volume (flow) per time always be the same but will the fluid take the path of least resistance leading some branches with less outflow? I suspect yes. Can someone provide me the equations to prove this?
@markburchell9060
8 жыл бұрын
Now I want to see one on Navier-Stokes equation and CFD
@royjasonhourany5514
8 жыл бұрын
amazing seriesss
@nitfens6863
8 жыл бұрын
Regarding Torricelli's theorem, wouldn't the velocity of the fluid coming out of the nozzle also depend on the area of the nozzle?
@happysquee1
8 жыл бұрын
ehh one fact to be noted is that you have similar mass universally if the pipe starts off big. if it goes from small to large, the water keeps flowing, or loses velocity to fill up. which is a discrepancy in their equation.
@esabkhan7901
7 жыл бұрын
you helped me a lot in preparing for ECAT exam.
@saadrehman362
7 жыл бұрын
really? these videos are pretty basic
@Alishah189
8 жыл бұрын
At 4:47 when velocity is higher at a different point on a pipe, then its area should decrease as Area*velocity is constant. Pressure=Force/Area then shouldn't the pressure increase instead of decreasing or am I missing something?
@AndrewPa
6 жыл бұрын
U have short and wide cylinder and long and narrow ( as long as volume is the same we are OK). Or even better - pressure is random motion, fluid velocity is ordered motion of atoms. less randomness (P) means more order (V) and vice verse.
@X-3K
8 жыл бұрын
Eating Pizza with Hot Sauce, Ice Cream, and oranges is only best eaten while learning about fluid mechanics.
@Master-me9kp
8 жыл бұрын
That's an interesting combination
@nuclearwarfareaw
8 жыл бұрын
Spiiiiiiiiiiîiiiiicy.
@nuclearwarfareaw
8 жыл бұрын
Is it sriacha hot sauce? I can't spell.
@ifyoubelieveitspossibleiti4649
7 жыл бұрын
4:48 If we assumed laminar flow, how can there be pressure on the walls? Doesn't laminar flow mean that the fluid is going straight without touching the walls?
@ashleymccarley13
7 жыл бұрын
No, Laminar flow just means that there is no turbulence in the flow rate. The stream lines are consistent and never cross. It does not negate that the molecules in the water are exerting pressure on their container. In fact the definition of a fluid is characterized by its ability to conform to a container and its ability to exert force perpendicularly to the surface of said container. Thus, you can have laminar flow and pressure against the walls of the pipe, because perpendicular pressure is in the nature of the fluids.
@AndrewPa
6 жыл бұрын
And where you saw streamlines crossing? Just curious.
@tronkysax2
5 жыл бұрын
Hello all! I have a question regarding pressure: if the pipe stays the same in size until the end the pressure would be the same for any point on the circumference wall since the section of the tube is a perfect circle, but what if it is not a perfect circle or let's say instead of being a round tube the pipe was significantly rectangular? would the longer walls of the pipe receive less or more pressure from the fluid compared to the shorter ones? and how would pressure vary around the angles? I cannot find an answer for that since almost all examples I find online are with circular sections... thank you very much
@Abdoolkasim
4 жыл бұрын
Simply it is cool! Nice presentation! Thanks!
@idaiaelwing4063
4 жыл бұрын
That's incredible work ! Thank you so much !
@xavierlampkin8203
7 жыл бұрын
Absolutely Fantastic Video
@JupiterSG_
2 жыл бұрын
I love the video and info but I love the presenter more!
@jngf100
6 жыл бұрын
Very informative and enjoyable to watch.
@shojintam4206
4 жыл бұрын
Fluids in motion Continuity equatuon Bernoulli's equation Torricelli's theorem
@caiojardim2280
8 жыл бұрын
Whining comment based on expectations of an 8-minute online scientific information catch-up animated entertainment video being able to explain a topic with hundreds of year of research as deep as an actual academic course, angry because the host didn't say what I - an anonymous that she barely cares about sat in a chair - think should be there.
@pappi8338
6 жыл бұрын
Caio Jardim-Sousa tl:dr
@thegaspatthegateway
6 жыл бұрын
I've watched practically all of the CCs, and it might just be the subject matter, but I've never felt so confused in any of them. I think it's the continual reference to the equations while it's still unclear, in my mind, what those parts of the equation represent. I feel like if they used the ELI5 philosophy, I'd get it :p But as I'm watching these electively (I just like learning and can't afford school), and aren't studying for a test which relies on rote memory and computational ability, the concepts just aren't sticking for me :(
@inund8
6 жыл бұрын
I think people are disappointed by the lack of depth. Most other topics are fully fleshed out and discussed over multiple videos if necessary. Of course theres no way you could cover all of fluid dynamics in one 10 min videos, they would need to do a whole series, which is why the engineering series is doomed imho
@rawdonwaller
5 жыл бұрын
+EV Belluche I've always found learning difficult in the way you describe. It's noone's 'fault'-neither mine nor that of the teachers I've had. I'm just a slow thinker, needing to turn things over and over in my mind before i feel comfortable with new concepts. In some ways, i think it might be due to some form of anxiety that i experience when trying to acquire information.
@HalfHotHalfCold
5 жыл бұрын
Lmao
@dharasheth4107
5 жыл бұрын
OMG!! I thought P = F÷A...so lesser the area higher is the pressure......but its not so.....thank you for correcting me.......but according to the equation my argument is not wrong can you help me find my mistake....... Please......
@aboynamedlucas
5 жыл бұрын
hi, are we using the work density interchangeably with pressure? she talks about 1/2pv^2 being "half the fluid's density times its velocity squared". I thought density (density=pressure * gravity * height ?) was different to pressure. Thanks for anyone who answers!
@goldenpotato722
6 жыл бұрын
Is the 'P' from Bernoulli's principle from thermodynamics equation PV = 3/2 nRT
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