This guy explains this 10 times faster than my biology techer in school does. This is why you should watch videos on youtube instead of staring at boring powerpoints and writing down notes while getting 5% of what the teacher just said!
Silver Rose Probably because they don't use humour as part of their teaching method. My Anatomy and Physiology lecturer for example has THE WICKEDEST sense of humour and likes to catch us off guard with little jokes and comments to see who's actually listening. It works, let me tell you--no-one falls asleep!
I really thought about this and this is my theory; lecturers must meet a quota and guidelines. So for example a class must meet the requirement of 2-3 hours of studying said subject, thus meeting the quota, therefore schools get funding, teachers and lecturers get paid etc etc and so fourth. Thats my theory anyways because my chemistry lecturer teaches in hanks style and usually she explains everything within 10-20mins, whilst the rest of the 2 hours or so shes just elaborating on it or giving out questions for us to answer.
I'm a teacher. It's not easy to be as charasmatic as Hank. Can you just 'be' interesting? Some people can, others can't. You can't always pick on the teachers, we try to make it interesting, but it requires a lot more than just a rehearsed YT video.
Thank you so much for this! Much easier to follow than my textbook, and since my teacher doesn't actually teach, I guess this'll be how I learn from now on
Love these videos! I'm taking online biology courses for school so I do most of my studying alone. These videos are like my "teacher" lol. It sticks with me a lot more when someone else explains it.
I love these videos! The textbook my school has is super outdated and horrible about explaining things. My teacher has no strict curriculum-- he just randomly lectures on something kind of pertaining to the current chapter. These videos are an amazing supplement to my textbook. Hank, have you ever thought about teaching teachers on how to convey information in an interesting way? If the public school system took this kind of organized, quick, and entertaining way of teaching, maybe the US wouldn't be so low on the global educational totem pole.
My biology instructor showed this video in the class, and I just can pay attention to it! Great job, Hank! You made me, a student whose English is not his first language, understand it clearly in English without trying translation.
Im Dutch, so most of the things explained have a different name here, making it more difficult to understand everything. It's still surprisingly fun to hear what everything is called in English. Keep up the great work!
This is fantastic. I think you should maybe do a crash course on internal and external respiration just to fully clear things up. My teacher just confuses me about that... Thanks!
Videos like these make me so grateful just to have working lungs, a heart, and, well, everything else. I know you're trying to educationize me, Hank, but you're also making me feel feelings and thankfulness. Boo.
I just wanna say that this series has helped me so much! Between Science Olympiad and wanting to test out of Biology, I needed to find study material that works. This has been one of the only ones I've found. Your videos are so funny and informative, and I've learned so much--more that I ever could of thought! So, thank you!
It is really cool how all of the body systems work together to get stuff done. I am not a huge science expert so I always just thought that the Circulatory and Respiratory systems etc. all just functioned independently. Thank You CrashCourse!
Learning through videos make me more interested through a particular subject, especially biology. Although some of the syllabus are quite different with the Malaysia student syllabus, but it's good for me to learn more. Continue your hardwork! Really appreciate.
Hey Hank! Thanks for another wonderful lecture, in the table of contents at the end, it says veins to left atrium where it should say veins to right atrium!
Studying for my DAT in 7 days and my laptops hard drive blew up. I lost every note from college, the $700 program i bought, and all the test prep questions I had. CrashCourse has been my best friend.
I noticed that it was different from the way it's pronounced in London. Kept concentrating on the word for a bit too long. Oh well, the content of the video's good.
3:35 he SAID a fifth of a millimeter (which is equivalent to 200 micrometers), but the diagram shows 50 micrometers. 200 micrometers is indeed the correct average diameter of alveoli, so I'm guessing the diagram is trying to show the diameter of an individual sacs within the alveoli. In case anyone was wondering. Probably just me though.
7:30 This segment made me realize another dimension of how my medical condition, postural orthostatic tachycardia syndrome (POTS) works. The first recommendation physicians give is to intake more fluids and sodium to increase blood volume, which in turn--sometimes--increases blood pressure. This is important because in POTS we don't have the reflects around our veins to push blood back up to our hearts, so blood constantly drains down (fun stuff). So when I heard this segment I thought, "Screwy biology! Veins need higher pressure!" in regard to my particular condition. Sure, the circulatory system needs the pressure differences between arteries and veins, but it also sounds odd in a sense because at least arteries get to where they need to go because of gravity. Veins? Low pressure and gravity are my enemy.
Yo know, when i was watching this i just realized how insane this is. I don't mean that offensively, this is fascinating but seriously stop and think about how fucking weird we are, bags of meat and tubes stuffed into a sack and held up by lumps of collagen. I know most people here already heard this but each time i come to this realization the more it blows my mind. This is why i love science.
Watching Crash Course is like playing a trick on my brain. Normally, I procrastinate studying by watching John and Hank. But with Crash Course, my urge to procrastinate encourages me to watch these videos. So I procrastinate studying by...studying. NERDFIGHTERS!
My A&P professor gave up halfway through the semester on giving us lectures, so we now just have to read the book and try to figure out on our own what will be on the test. Lectures and good illustrations/explanations really help me learn more, so thank you for helping me learn this stuff, since my professor no longer seems too concerned about it.
+Hadeel Elshak So god damn boring, I finished it 10 minutes in and was bored out of my mind for the other 20 minutes. Why??? It's FIFTEEN MULTIPLE CHOICE QUESTIONS! I'm not autistic!
I am a medical student and I have already learned and relearned all of this several times, yet I find myself using these videos as my main source of entertainment. Thank you, I love them. dftba.
to answer your question at 2:00 hank. yes! yes i do want to be constantly moist xD and for everyone out there thinking it, yes i know.. that's what she said. now grow up! lol
This is what I needed for my test on "Circulatory and Respiratory Systems". Thank you Hank keep up that awesome. PS grate robot tone at the beginning. (^ o^) LOL!!!
The respiratory system is breath taking
The circulatory system is heart- stopping.
The punny guy is in the chat now.
keeanu reeves
You made a keanu reference before keanu.........whaaaaat?
The skeletal system is bone crushing.
Bio final today. Good luck to everyone else who has one soon
exactly
thanks, i need the luck
Zoology final soon. I hope yours went well.
Thanks. :) taking it tomorrow
Tomorrow
It's depressing how a 12 minute video by these guys have taught me more than 3 years of high-school have
This guy explains this 10 times faster than my biology techer in school does. This is why you should watch videos on youtube instead of staring at boring powerpoints and writing down notes while getting 5% of what the teacher just said!
Ikr also i luv ur profile pic :D so cute!!!!!
🍳actly
LOL see what I did there?
Alfred Saalo no way! Your teacher actually does their job and teach you? Mine doesn’t
agreed.
my teacher takes 4 hours just to explain 10% parts of this video
YOU JUST ENTERED MANUAL BREATHING MODE.
Stop.
@Asiamah Yaw Nyame =D
Your tongue feels uncomfortable
NOOOOOOOO DAMMIT!!!!!!!
dang it, any instructions on how to switch back to auto mode again?
5:36, for those guys who just needs the circulatory part... you're welcome
I will be forever grateful to you (xD) 😭
THANKYOU!!!!
thejrignacio12345 Ah thx chu!! 😂💞
* need
All the way t'ill, 9:30
Hank and John, you guys are saving my junior year
It's so weird, when I watch this I actually like learning... Wonder what my own teachers are doing wrong
Silver Rose Probably because they don't use humour as part of their teaching method. My Anatomy and Physiology lecturer for example has THE WICKEDEST sense of humour and likes to catch us off guard with little jokes and comments to see who's actually listening. It works, let me tell you--no-one falls asleep!
most teachers were probably once like this but the low pay and all the work crushed their spirit and interest in what they teach idk though
I really thought about this and this is my theory; lecturers must meet a quota and guidelines. So for example a class must meet the requirement of 2-3 hours of studying said subject, thus meeting the quota, therefore schools get funding, teachers and lecturers get paid etc etc and so fourth. Thats my theory anyways because my chemistry lecturer teaches in hanks style and usually she explains everything within 10-20mins, whilst the rest of the 2 hours or so shes just elaborating on it or giving out questions for us to answer.
They're not teaching me while I'm lying in bed
I'm a teacher. It's not easy to be as charasmatic as Hank. Can you just 'be' interesting? Some people can, others can't. You can't always pick on the teachers, we try to make it interesting, but it requires a lot more than just a rehearsed YT video.
Thank you so much for this! Much easier to follow than my textbook, and since my teacher doesn't actually teach, I guess this'll be how I learn from now on
You literally covered EVERYTHING on my test!
Love these videos! I'm taking online biology courses for school so I do most of my studying alone. These videos are like my "teacher" lol. It sticks with me a lot more when someone else explains it.
I love these videos! The textbook my school has is super outdated and horrible about explaining things. My teacher has no strict curriculum-- he just randomly lectures on something kind of pertaining to the current chapter. These videos are an amazing supplement to my textbook. Hank, have you ever thought about teaching teachers on how to convey information in an interesting way? If the public school system took this kind of organized, quick, and entertaining way of teaching, maybe the US wouldn't be so low on the global educational totem pole.
Would love a CrashCourse on cardiac output and stroke volume!
Go to crash course anatomy and physiology
A video on Blood would be awesome! Covering the formed elements and plasma, and how blood is made and so on. :D Your videos are very helpful!!!
there is one
CrashCourse Biology always uploads on Monday!
You are amazing :)
Summarised 20 pages in 11 mins and my understanding of the topic has improved!
This went over the equivalent of like 5 lesson in my biology class.
Could you do a crash course on ORGANIC CHEMISTRY
My biology instructor showed this video in the class, and I just can pay attention to it! Great job, Hank! You made me, a student whose English is not his first language, understand it clearly in English without trying translation.
Biology test? Biology test.
Biology final? Biology final.
theabdu500 Biology exam ? biology exam
+Hannah Liu Screwed Biology ? Screwed biology.
+Hannah Liu TFIOS? TFIOS.
+Hannah Liu
Life? Life.
You Help me pass My Science Tests!!
Shut up
SuperTizianos Any Pro For you if i didn't!?😏😏
All caps at the start of each word baby.
thats good!!!
Too bad you'll fail English.
Im Dutch, so most of the things explained have a different name here, making it more difficult to understand everything. It's still surprisingly fun to hear what everything is called in English. Keep up the great work!
This is fantastic. I think you should maybe do a crash course on internal and external respiration just to fully clear things up. My teacher just confuses me about that... Thanks!
You are now my bill bye the science guy to help me ace my biology exam you are a life saver I love crash course ♡
+Sara Marie Same here xD
Bill Nye of the 21st century
god bless this crash course I UNDERSTAND THINGS NOW
I'm so uncomfortably aware of my breathing...
saw this video in class today kinda had a fangirl moment when i saw Hank haha :)
Every new crashcourse biology reminds me to be amazed that we are alive. It's nice to have most of all necessary things happen automatically.
this channel has come a long way
Videos like these make me so grateful just to have working lungs, a heart, and, well, everything else. I know you're trying to educationize me, Hank, but you're also making me feel feelings and thankfulness. Boo.
Hank teaches me more in these 10-15 minute videos than my biology teacher does in 5 one hour lessons.
Great video sir! Perfect for my middle school students!
Wait a minute, Hank: are you saying the lungs make a total eclipse of the heart?
This is at such a good level for school. Not dumbed down, not excessively complicated it's Genius!
In a few hours I have my Bio exam. Thank god Crash Course exist, saving thousand of students
I just wanna say that this series has helped me so much! Between Science Olympiad and wanting to test out of Biology, I needed to find study material that works. This has been one of the only ones I've found. Your videos are so funny and informative, and I've learned so much--more that I ever could of thought! So, thank you!
watching this was homework, literally xD so cool that i dont have to read about it, thank you
It is really cool how all of the body systems work together to get stuff done. I am not a huge science expert so I always just thought that the Circulatory and Respiratory systems etc. all just functioned independently. Thank You CrashCourse!
These videos are great! Can you guys make Anatomy and Physiology videos that cover this and more about the human body?
This basically summed up my 2 weeks worth of in-class studying on the circulatory/respiratory system in 11 minutes and 39 seconds. i love this.
Learning through videos make me more interested through a particular subject, especially biology. Although some of the syllabus are quite different with the Malaysia student syllabus, but it's good for me to learn more. Continue your hardwork! Really appreciate.
Hai, from Malaysia
Hey Hank! Thanks for another wonderful lecture, in the table of contents at the end, it says veins to left atrium where it should say veins to right atrium!
Bio final tomorrow. Thanks for the help. x
Thanks Hank I got an A+ in my Biology examiniation
once again hank's saving my ass at bio class....... Crash course, I salute you
Watching all crash course videos for the love of learning and knowledge!
you teach me more than my biology teacher does....
I swear, forget university classes. I might as well stay on your channel and learn. Thank you so much.
Hank is the MAN!!!!
my bio teacher showed us this during class. I was so proud to have already seen the video :)
Good luck to everyone here for SAT II Bio tmrw! Keep that hope alive :p
I think this is my favourite episode of Crash Course Biology so far. It has the best writing.
I got my results and I did really well because of you guys! thank you so much!
You, Dear Sir, are just amazing.
Here because Bio finals are literally in 4 hours !
Studying for my DAT in 7 days and my laptops hard drive blew up. I lost every note from college, the $700 program i bought, and all the test prep questions I had. CrashCourse has been my best friend.
U da real mvp
Mate you deserve a medal, you've taught me more than all my lectures put together! Thank you!
I'd make a terrible doctor, just seeing the little animations is making me queezy.
This is just amazing. These videos pretty much summed up weeks of lessons in a less-than-15-minute video!
You pronounce "capillaries" strangely.
I noticed that it was different from the way it's pronounced in London. Kept concentrating on the word for a bit too long. Oh well, the content of the video's good.
Agreed. Crash Course is amazing. In fact, I was watching the Chemistry playlist when I received your reply.
British vs. Americans
Sounds normal to me.
Georgia Sinclair wait if they are british why does John Green sound super American?
the masters of detailed summarising!
3:35 he SAID a fifth of a millimeter (which is equivalent to 200 micrometers), but the diagram shows 50 micrometers. 200 micrometers is indeed the correct average diameter of alveoli, so I'm guessing the diagram is trying to show the diameter of an individual sacs within the alveoli. In case anyone was wondering. Probably just me though.
+Jarrett Munton In the video he says that each individual alveolus is 50 micrometers, not an entire alveoli.
Great videos! I love the series so far.
Please add annotations to your videos for corrections though. World History did this. 1/5mm is 200μm not 50μm.
anybody started a band named 'moist with mucus' yet? Cause I might claim the name now
7:30 This segment made me realize another dimension of how my medical condition, postural orthostatic tachycardia syndrome (POTS) works. The first recommendation physicians give is to intake more fluids and sodium to increase blood volume, which in turn--sometimes--increases blood pressure. This is important because in POTS we don't have the reflects around our veins to push blood back up to our hearts, so blood constantly drains down (fun stuff). So when I heard this segment I thought, "Screwy biology! Veins need higher pressure!" in regard to my particular condition. Sure, the circulatory system needs the pressure differences between arteries and veins, but it also sounds odd in a sense because at least arteries get to where they need to go because of gravity. Veins? Low pressure and gravity are my enemy.
Am i the only one having a hard time breathing while watching this video? 😂
Yes
Great video. I actually learned something.
Yo know, when i was watching this i just realized how insane this is.
I don't mean that offensively, this is fascinating but seriously stop and think about how fucking weird we are, bags of meat and tubes stuffed into a sack and held up by lumps of collagen.
I know most people here already heard this but each time i come to this realization the more it blows my mind. This is why i love science.
Cool to see fellow bronies in the comments of non mlp related vids. I've been finding a lot more of us as of late.
#BroniesFTW
I was not expecting Hank to appear but it made this 100000000x better that he did :D
This could really help someone that is working on a science project like I am
Watching Crash Course is like playing a trick on my brain. Normally, I procrastinate studying by watching John and Hank. But with Crash Course, my urge to procrastinate encourages me to watch these videos. So I procrastinate studying by...studying. NERDFIGHTERS!
YES I KNOW THIS IS BIOLOGY... BUT YOU KNOW WHAT I WANT... A VIDEO ON PRIDE AND PREDJUDICE BY CRASH COURCE.
My A&P professor gave up halfway through the semester on giving us lectures, so we now just have to read the book and try to figure out on our own what will be on the test. Lectures and good illustrations/explanations really help me learn more, so thank you for helping me learn this stuff, since my professor no longer seems too concerned about it.
Bio tests today and tommorow... Wonderful -_-
i feel ya
+Hadeel Elshak
So god damn boring, I finished it 10 minutes in and was bored out of my mind for the other 20 minutes. Why??? It's FIFTEEN MULTIPLE CHOICE QUESTIONS! I'm not autistic!
I am a medical student and I have already learned and relearned all of this several times, yet I find myself using these videos as my main source of entertainment. Thank you, I love them. dftba.
"Eloquent question. Well asked!"
That is, unfortunately, how many of my questions are phrased :P
nice video! hopefully I do good on my test
Must. Not. Keep. Staring. At. Mole.
Lol!🤣🤣
I count this as my over the summer biology revision!
Hank is so cute, I love his little side jokes.
I swear Hank & John Green help me more than my school.
"Moist with mucous... Another great band name" :3
Oh... Hank lol
You suddenly find band names while making observations too!!! My heart is smiling!
He made me breathe manually. : /
Friggin love this channel player
Yep. Every animal needs a heart...
Unless you're a sponge 😂😂
You're like a happy, caring Sheldon Cooper :)
you talk so fast but somehow I can remember what your saying :)
I would not be passing biology or psychology without you hank, you're "fracking" awesome!!
to answer your question at 2:00 hank. yes! yes i do want to be constantly moist xD
and for everyone out there thinking it, yes i know.. that's what she said. now grow up! lol
Sahil Malhotra noice
Your illustration helps me understand so much better!! THANK YOU!
Update: there are 700 000 000 or 700 million alveoli in both of the human lungs as per the new research results. Thank me later.
THANK YOU SO MUCH FOR THIS SERIES! I am SO SCARED for my bio honors test and this has calmed me down a bit
Is it only me or Hank looks sad?
Poor sad boi
bc he is sad look what he made a vid on
This channel has saved my life a million times this year.
This is what I needed for my test on "Circulatory and Respiratory Systems". Thank you Hank keep up that awesome.
PS grate robot tone at the beginning. (^ o^) LOL!!!
Burn
Taking the SAT Bio test on Saturday and you have saved me so much time trying to decipher whats in my book. THANK YOU THANK YOU HANK
2.05 im moist right now and regret nothing
+Radhika Doraisingam she means she is wet
I would not be making it through IB Biology without Crash Course - THANK YOU!