Friction: Crash Course Physics #6

Поделиться
HTML-код
  • Опубликовано: 26 авг 2024

Комментарии • 931

  • @crashcourse
    @crashcourse  Год назад +21

    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

  • @MrARock001
    @MrARock001 8 лет назад +275

    I love how simple physics is so useful, so long as you've memorized all of the infinite possible coefficients.

  • @oldasyouromens
    @oldasyouromens 8 лет назад +693

    Her accent combined with the rhythm of the way she speaks makes this course pretty easy for me to grasp.

    • @Vividlyvanilla
      @Vividlyvanilla 5 лет назад +8

      We almost have the same name and yeah your right!

    • @henywetherford901
      @henywetherford901 4 года назад +6

      no

    • @maxwatchman6129
      @maxwatchman6129 4 года назад +31

      She doesn’t take a single breather for us to collect our thoughts.

    • @DavidKrama
      @DavidKrama 4 года назад +27

      @@maxwatchman6129 cRaSh CoUrSe

    • @haven_143
      @haven_143 4 года назад +5

      I usually hate British accents but hers is different so it’s not that annoying

  • @hickswasright4675
    @hickswasright4675 8 лет назад +379

    I really love how the nerdiness has been 'ramped up' in this series....
    I'll show myself out.

    • @ThePandaclash
      @ThePandaclash 8 лет назад +8

      +Hicks Was Right Ba dum tiss
      Go back to undertale Sans...

    • @tetragon2137
      @tetragon2137 8 лет назад +7

      "You are a horrible person. That's what it says. A horrible person. We weren't even testing for that."
      -Glados

    • @yurivillacasten4367
      @yurivillacasten4367 6 лет назад

      Hicks Was Right àp"1
      Zombie h ghnngnh

    • @AndewMole
      @AndewMole 4 года назад

      @@yurivillacasten4367 r/ihadastroke?

    • @AgentOrange329
      @AgentOrange329 4 года назад +2

      I'm 'inclined' to believe you are right ;)

  • @l.benjamind.9003
    @l.benjamind.9003 8 лет назад +385

    so I was like, "Bro, I should totally watch this video, it sounds cool." I watched for a couple minutes, then my brain exploded.

    • @l.benjamind.9003
      @l.benjamind.9003 8 лет назад +5

      +Morgan Freeman If this is actually Morgan Freeman, I might die. Dude, awesome.

    • @TjasaZ
      @TjasaZ 8 лет назад +1

      hahaha this made me laugh so hard. thank you

    • @DeadPyro96
      @DeadPyro96 8 лет назад +10

      This was way easier to understand than the Derivation and Integrals episode honestly.

    • @mywayrocks
      @mywayrocks 8 лет назад +18

      just basic Mechanics bro

    • @tanyay1073
      @tanyay1073 8 лет назад +6

      Same 😂
      I zone out a lot...

  • @StereoSoundAgent
    @StereoSoundAgent 7 лет назад +88

    I wish I had discovered this a week ago. I'll be watching 3 of your physics videos over the next 24 hours repetitively to obtain a better grasp. Your series is the only series of youtube videos that makes the material possible to comprehend.

  • @RagerQueen
    @RagerQueen 8 лет назад +879

    *hears the word trigonometry*
    *screams in terror*

    • @omarelnaggary6652
      @omarelnaggary6652 6 лет назад +36

      you're a loser if you think that basic trigonometry that's used in mechanics is hard. I hope this is a joke. Have a good day

    • @therealspaghetti208
      @therealspaghetti208 6 лет назад +1

      Narwhalla are you 6

    • @purkayastha_madhura
      @purkayastha_madhura 6 лет назад +6

      OK besides the argument going on, how do you make your font bold???

    • @rockyjoe3817
      @rockyjoe3817 6 лет назад +1

      Omar Elnaggary A fan of Flipping Physics channel cool :)

    • @HorizonSpeed26
      @HorizonSpeed26 5 лет назад +1

      well I don't usually agree, but trig is difficult and requires a bit of dedication.

  • @lilliang3521
    @lilliang3521 4 года назад +126

    comment section: oh no trigonometry
    me: laughs in physics c

  • @EugeneKhutoryansky
    @EugeneKhutoryansky 8 лет назад +523

    Understanding the friction in the interpersonal relations between human beings is much harder than understanding the types of friction discussed here.

    • @lancelovecraft5913
      @lancelovecraft5913 8 лет назад +2

      lol I was about to make a similar comment

    • @hasnain9654
      @hasnain9654 6 лет назад +1

      Physics Videos by Eugene Khutoryansky Your bed will fall down without friction.

    • @aneesurrahman6773
      @aneesurrahman6773 6 лет назад

      causes of friction

    • @johnocallaghan7862
      @johnocallaghan7862 6 лет назад +1

      Physics Videos by Eugene Khutoryansky

    • @nontology
      @nontology 6 лет назад +9

      Your videos rock. I can't believe you're an actual person who makes comments on vids.

  • @kidi1232
    @kidi1232 8 лет назад +431

    As my physics teacher taught me:
    No friction = no joy.

    • @theimmunegamer8123
      @theimmunegamer8123 4 года назад +8

      kidi1232 what does she mean by no friction no joy

    • @aniketsamal8346
      @aniketsamal8346 4 года назад +10

      @@theimmunegamer8123 fu.. k

    • @weeb69
      @weeb69 4 года назад +25

      @@theimmunegamer8123 too young.

    • @weeb69
      @weeb69 4 года назад +11

      @ML Gaming sex joke, you're too young

    • @seasj4241
      @seasj4241 4 года назад +6

      oh my gosh

  • @nirupamkhanal6466
    @nirupamkhanal6466 6 лет назад +246

    Host:"The first thing we need to do is draw a free body diagram of the slope"
    Me: *in horror* "NO, STUPID. WE NEED TO STOP THE BOX."

  • @IPGD
    @IPGD 7 лет назад +390

    Wonderfull. I love the host.
    She is able to deliver it well.
    Mostly Physics are delivered in a boring way.
    Thank you for great video.

  • @sagnikchakraborty2837
    @sagnikchakraborty2837 5 лет назад +73

    8:20
    "Nothing is going to make it start rising above the surface of the ramp, right?"

  • @kamalbhamra3146
    @kamalbhamra3146 8 лет назад +377

    Remember kids, The only difference between screwing around and physics, is writing it down.

    • @isaacliu896
      @isaacliu896 8 лет назад +38

      that's how Newton figured out calculus through physics... screwing around and writing it down

    • @joshbobst1629
      @joshbobst1629 8 лет назад +24

      +Isaac Liu And Leibniz, don't forget about him.

    • @dumbnerd8316
      @dumbnerd8316 5 лет назад +9

      Josh Bobst God created the perfect universe where screwing around is physics

    • @harkritsandhu9711
      @harkritsandhu9711 4 года назад +7

      bruh this guy replies to literally every physics crash course video

    • @shaunak601
      @shaunak601 4 года назад

      @@harkritsandhu9711 XD LOL

  • @aquamus
    @aquamus 8 лет назад +28

    As a university physics student, I suggest discussing Galilean transformations soon. It was so frustrating getting to university and realising 3D problems, which were difficult in high school, could be simplified to the point of being almost trivial. Also, a good understanding of Galilean transformations makes special relativity (later on) much easier to understand :)

  • @crashcourse
    @crashcourse  8 лет назад +291

    Let's talk about friction!

    • @crashcourse
      @crashcourse  8 лет назад +7

      +Sunhee Lee Thanks! :)

    • @Big_Bert
      @Big_Bert 8 лет назад +2

      +Mordecia potatoes are illuminati

    • @TGC40401
      @TGC40401 8 лет назад +4

      +CrashCourse As long as it's non-fiction.

    • @AlexSh789
      @AlexSh789 8 лет назад +9

      Quit saying "M-U", seriously. It's a single symbol: Greek lowercase Mu (μ).

    • @AlexSh789
      @AlexSh789 8 лет назад +1

      +Sunhee Lee At 4:54, for example.

  • @ahorrell
    @ahorrell 8 лет назад +171

    Trigonometry? Great, now I need Crash Course Math. DON'T TEASE ME I'M OLD AND NOT SMART
    Loving the series though

    • @danielbody6051
      @danielbody6051 8 лет назад +8

      +Aaron Horrell They really should do that though!

    • @evanknowles4780
      @evanknowles4780 8 лет назад +10

      +Aaron Horrell There should be a different crash course for the different disciplines of math, like how they have ones for the different disciplines of science.

    • @sweeneytod4734
      @sweeneytod4734 5 лет назад +4

      @@evanknowles4780 There are plenty of resources for that though on yt, like khan academy, professor leonard, numberphile.

  • @HeintZ77
    @HeintZ77 8 лет назад +12

    I have a physics exam coming up so these videos are going to help alot! Thank you Crash Course and Dr. Shini Somara.

  • @jive.rider_6953
    @jive.rider_6953 5 лет назад +19

    You teach me math in a science video better than my math teacher 😂

  • @alishasvlogs7622
    @alishasvlogs7622 4 года назад +9

    The host makes me enjoy physics more then when I am in class

  • @wii3willRule
    @wii3willRule 8 лет назад +73

    CC Calculus next, please! I appreciate what this channel is doing.

    • @MrARock001
      @MrARock001 8 лет назад +5

      I think they'll get to calculus in this course, as it's the language Newton invented to describe physics.

    • @JM-us3fr
      @JM-us3fr 8 лет назад +3

      How about CC mathematics? I've been waiting years for it.

    • @wedfrest
      @wedfrest 8 лет назад +8

      They've already done derivatives and integrals mate.

    • @user-eh5qc3nd5w
      @user-eh5qc3nd5w 7 лет назад

      yaaaaaa math ISCOOL

  • @MrJ3
    @MrJ3 8 лет назад +134

    The "s" sounds in this video are quite sharp. I wear good quality headphones and it was actually bothering me throughout the video. Not sure if there's some way to mute or tone down those sharp sounds that come from words with "s" in them.

    • @crashcourse
      @crashcourse  8 лет назад +134

      +Eeriewolf Yep. This was the last video we shot with that issue. It was actually a signal issue and not something that deessers or any amount of post processing could remove. I didn't hear it in the headphones at the time but have since solved the problem. :)
      -Nick J.

    • @MrJ3
      @MrJ3 8 лет назад +12

      CrashCourse
      Great to hear! Keep doing what you're doing! :)

    • @alexw.8046
      @alexw.8046 8 лет назад +15

      Omg me too, I thought I was just being hypersensitive

    • @freakenproduction
      @freakenproduction 8 лет назад +29

      +CrashCourse What an awesome response, you really care about your audience :). I hope you guys keep doing this. I sincerly think crashcourse has grown to a size that will be remembered in history books later, you guys are changing education on a global level, please keep realizing this :)

    • @nathanwood5481
      @nathanwood5481 7 лет назад

      Look up a real-time low-pass filter.

  • @DaveWasley
    @DaveWasley 6 лет назад +5

    These are amazing. College grad, but 11 years out, I feel like I’ve forgotten all this stuff. Thanks for the refresher.

  • @darkandcurious1277
    @darkandcurious1277 7 лет назад +1

    She is really something! Wasn't sure if I was 'glued' to her presentation or to her looks.

  • @madeleinebraye6866
    @madeleinebraye6866 7 лет назад +5

    I am a college student sitting here drinking my coffee and preparing for an exam. TF for you fam.

  • @TalysAlankil
    @TalysAlankil 8 лет назад +33

    The way you pronounce μ is funny to me

  • @effexwhore
    @effexwhore 8 лет назад +3

    Seinfeld reference killed me then brought me back to life. Thanks Crash Course, I needed that

  • @AdolfoAguilarVideos
    @AdolfoAguilarVideos 4 месяца назад

    7 years and this video still helpful. Thank you

  • @Abaris84
    @Abaris84 8 лет назад +10

    I lasted 5 minutes before I didn't have a clue what she's going on about. New personal record.

  • @indibindylou
    @indibindylou 8 лет назад +10

    Crash Course Physics??! Crash Course GAMES?!? The stupid sub box didn't tell me until now! I'm so excited to watch these!

    • @crashcourse
      @crashcourse  8 лет назад +13

      +indibindylou Well... that's discouraging. The sub-box issue, I mean. Not that you're excited. You being excited is VERY encouraging :)
      -Nick J.

  • @VEE727
    @VEE727 8 лет назад +3

    1:15 Kramer's entry was perfect!!

  • @vectoredthrust5214
    @vectoredthrust5214 8 лет назад +4

    Wasn't expecting the Seinfeld reference, or the reference to Jerry's new show "Comedians in Cars getting coffee" either
    I love this channel. As someone studying aerospace engineering now, this makes me nostalgic for my physics classes in secondary school

    • @effexwhore
      @effexwhore 8 лет назад

      I was caught off guard too! I love Seinfeld lol

    • @vihaanmenon7175
      @vihaanmenon7175 6 лет назад

      I want to get into aerospace engineering as well. Could you tell me anything about the field that'll help ? Thanks!

  • @ThePaintballgun
    @ThePaintballgun 8 лет назад +17

    I FUCKING LOVE PHYSICS!

  • @thePocketWatch45
    @thePocketWatch45 8 лет назад +45

    i love your videos!

  • @codythompson9750
    @codythompson9750 8 лет назад +6

    Hey guys!!! First I'd like to say how much I absolutely adore your channel, I've learned so much from you guys (The philosophy is a particular favourite of mine) and you're both absolutely brilliant. Secondly, if you're considering starting another series sometime, would you consider doing one on ancient myths? Say Greek, Norse, or something along the lines of that? Or is there some video/s about that that I missed? I love you guys, thanks for doing what you do! (P.S Hank you made me question everything and all my friends think I'm insane because I keep rambling about reality and mortality and apples in baskets and god and knowledge. Thanks for that XD. But You also made me want to become a philosophy professor, so there's that.)

  • @isaacalonzo-kb1yc
    @isaacalonzo-kb1yc Год назад +1

    This is awesome, you can also use this and apply it to your relationships.

  • @thepatriot19
    @thepatriot19 8 лет назад

    What i love best about crash course; the way the show it is pretty much how i was taught. So when i show other students (i am college tutor and supplemental instruction leader for intro physics) these videos they get it in pretty much the same way that their teacher showed them.

  • @ragnkja
    @ragnkja 8 лет назад +154

    μ (mu) is simply pronounced "mew", not "em you".

    • @MrDoob-xo3sm
      @MrDoob-xo3sm 8 лет назад +12

      +Nillie mew mew mew mew mew mew mew mew mew mew

    • @ThePandaclash
      @ThePandaclash 8 лет назад +8

      +Nillie I have a mewtwo EX! And a special Generations Mew Pokemon card!

    • @lsmrkqj
      @lsmrkqj 8 лет назад +9

      Nillie might be the accent

    • @jaskay1309
      @jaskay1309 7 лет назад +1

      says who lol

    • @ragnkja
      @ragnkja 7 лет назад +6

      Yasemin Kayali Dr Somara replied to another comment that this error may have been her misreading off auto-cue.

  • @sosanmia3
    @sosanmia3 8 лет назад +6

    That Seinfeld reference though ♡

  • @sudhendusingh77
    @sudhendusingh77 5 лет назад +1

    1:59 i mean lol!!! her eyes

  • @WindFireAllThatKindOfThing
    @WindFireAllThatKindOfThing 8 лет назад +1

    That was a surprisingly engaging lecture. Good use of metaphor, human delivery, and graphic training aids strike the correct parts of the proper lobes.

  • @andrewkiminhwan
    @andrewkiminhwan 8 лет назад +4

    she makes physics interesting!

  • @aronbriggs7783
    @aronbriggs7783 4 года назад +3

    I tried watching this video on 2x as i had little time to watch it. Bad idea 😁

  • @NEWGREATNESS
    @NEWGREATNESS 7 лет назад

    I just took a brilliant nap while listening to this. Her accent is soothing and refreshing.

  • @Zzznmop
    @Zzznmop 8 лет назад +2

    you physicists are so damn good at math. I'll stick to chemistry

  • @wunderkind7762
    @wunderkind7762 8 лет назад +3

    Thanks for making such awesome educational videos! I just wanted to say. It might be cool to one day see a series for art history -

  • @magda_mf
    @magda_mf 4 года назад +3

    Can someone please explain me why static friction is not related to Newton's third law? Because these are quite similar concepts and I can't really grasp the difference. Thanks
    And, by the way, is someone also watching in 0.75 speed? :)

  • @jadraad2934
    @jadraad2934 8 лет назад +2

    Seinfeld reference, Utter perfection !! Hilarious !! You have out done yourself crash course and though caffee !!! :)

  • @rebecca7295
    @rebecca7295 7 лет назад +1

    SEINFELD!!!!!!!!! YASSSS
    I didn't know that the two could combine....

  • @thesweetestjp
    @thesweetestjp 6 лет назад +5

    Once she said we have to use trigonometry I was like, "AH HELL NAWWW AH AH"

  • @Locke99GS
    @Locke99GS 8 лет назад +27

    I've never heard somebody say μ by spelling out "m u" before. I'm sure the script had written "mu", but I'm fairly confident that they intended for it to be pronounced μ, as "myoo"

    • @zuzusuperfly8363
      @zuzusuperfly8363 8 лет назад +4

      +Locke99GS I say, myew. Never changing it.

    • @megasonicgeo
      @megasonicgeo 8 лет назад +1

      +Locke99GS msolja boy tell em

    • @UnashamedlyHentai
      @UnashamedlyHentai 8 лет назад +1

      +leein jeon Myoo is the generally accepted pronunciation, though dictionary.com does list 'moo' as an alternate. Their 'speak this word' button uses 'myoo.'
      www.dictionary.com/browse/mu

    • @zuzusuperfly8363
      @zuzusuperfly8363 8 лет назад

      ***** Okay cool so I'm saying it right.

  • @arnavmanjul4464
    @arnavmanjul4464 6 лет назад +2

    I would've failed my Physics test without this girl

  • @robertdonohue2215
    @robertdonohue2215 8 лет назад +1

    The greatest series ever

  • @vikky2076
    @vikky2076 4 года назад +3

    6:34 looking at this I thought I just lost my brain....

  • @nashihaahmed
    @nashihaahmed 8 лет назад +13

    Crash course computer scienceeeee

  • @yukonii0
    @yukonii0 6 лет назад +1

    Physics is more interesting when you take your time to learn it,
    not like school teachers who rush stuff just for the sake of finishing the book.
    thanks to you friction is much easier to understand

  • @shaylempert9994
    @shaylempert9994 8 лет назад

    Just came back from a sorting test for a mechanical engineering program. Someone talked about airodynamics, after that we had to do a test on it. After this (especially with me being in 9th grade) I can learn whatever you throw at me.

    • @olivierg.9479
      @olivierg.9479 8 лет назад

      +Shay Lempert Okay, you'll see in the future that no matter how much you learn from one domain, there's always more to learn. I've learned about what's in this video 6 years ago and I'm still having a hard time understanding things in material science now.

    • @shaylempert9994
      @shaylempert9994 8 лет назад

      +Olivier G.
      Just expressing my relief it's over..
      But thanks for the advice :)

  • @annalovelace685
    @annalovelace685 8 лет назад +3

    I've taken physics, I know this stuff, I do a fair amount of 3D programming ... but I thought this moved a little fast to follow especially at the end. Good production value as always guys but I think you might want to keep the picture on the diagrams a bit more when explaining concepts.

  • @angelicakirana1500
    @angelicakirana1500 8 лет назад +3

    i wish u guys can create a pdf or some sort so i can download it if i wanna comeback and read them

  • @srinivasreddybg1679
    @srinivasreddybg1679 6 лет назад

    It was bothering me from many days thanks for understanding me about friction

  • @responsiblelobster5223
    @responsiblelobster5223 7 лет назад

    I passed a GCSE with an a just by watching these as my revision tbh pls continue the physics ones often. because they save lots of pointless revision reading. physics is common sense with the knowledge of the fundamentals honestly

  • @zinhlenonhlakaniphomtolo2646
    @zinhlenonhlakaniphomtolo2646 7 лет назад +3

    This helped so much!!!!! Last minute revision for my finals. Thank you Crash Course

  • @ace_stealth251ace9
    @ace_stealth251ace9 8 лет назад +70

    I did not understand after 5min:(

    • @crashcourse
      @crashcourse  8 лет назад +29

      +ACE_stealth251 [ACE] There's a lot going on. I recommend going back and pausing it and turning the captions on :)

    • @shabasupermayn
      @shabasupermayn 8 лет назад

      +ACE_stealth251 [ACE] read edexcel m1 book it helps with examples

    • @haydenray4303
      @haydenray4303 8 лет назад +10

      +ACE_stealth251 [ACE] Don't worry, took me a whole year of AP Physics to really understand any of it.

    • @MrDoob-xo3sm
      @MrDoob-xo3sm 8 лет назад +2

      +ACE_stealth251 [ACE] I feel for you

    • @sniperammow4865
      @sniperammow4865 5 лет назад

      ACE_stealth251 [ACE] take notes, you need notes and practice problems.

  • @matthewlaing4931
    @matthewlaing4931 5 лет назад

    loving the sinefeld referance

  • @mahaalyas6113
    @mahaalyas6113 7 лет назад

    Bless your soul, your team that has created these videos, bless your life...just bless. All your videos have helped me understand things that my professor made so hard to understand.

  • @OviWanKeno9i
    @OviWanKeno9i 8 лет назад +4

    Always had a weakness for physics girls. Some of the best gfs I've had. She definitely reinforces it :)
    The actual content is pretty simple. I think the problems were part of every physics course I've ever taken.
    Once you get the free body diagram correct with split vectors, it's all matching equations.

  • @AyeshaKhan-gp9on
    @AyeshaKhan-gp9on 7 лет назад +6

    If the bookcase is in equilibrium, force exerted by our hand equals static friction and the bookcase doesn't move. But if the force exerted by our hand is less than static friction and the bookcase still doesn't move, is the object still in equilibrium?

    • @AyeshaKhan-gp9on
      @AyeshaKhan-gp9on 7 лет назад

      Bob McBobberbob Okay, thanks

    • @nicolassamanez6590
      @nicolassamanez6590 7 лет назад +3

      yes, remember that it changes its strength to match up the applied force, as long as it is less than or equal to the max static friction. once the applied force (from, I dunno, your hands or something) passes that amount, it will be no longer in equilibrium.

    • @MonkeyDLuffy-xr4fl
      @MonkeyDLuffy-xr4fl 7 лет назад +1

      The magnitude of normal force changes in response to the exerted force. Since max force of static fricition= coefficient of static friction * normal force, the static friction changes and thus is in equilibrium when not in motion

    • @irfankarmali4849
      @irfankarmali4849 5 лет назад

      yes it's still in equilibrium, because static friction changes according to the applied, if the maximum static friction is 5N and you apply 3N, then the static friction opposing your applied force is also 3N, the maximum is 5N , that doesn't mean it's always 5N it changes to match the applied force so long as the applied force is 5N and below.

  • @Gabriellucasml1
    @Gabriellucasml1 8 лет назад +2

    Oh my God, I'm back to what used to be my nightmare in high school physics class. TT-TT

  • @evolutionxbox
    @evolutionxbox 8 лет назад

    I didn't really learn any of this in school. I am sooo glad this exists.

  • @Hecatonicosachoron
    @Hecatonicosachoron 8 лет назад +4

    Stick-slip friction covered before the (easier, more intuitive, and mathematically more beautiful) fluid friction? Not what I expected from a fluid dynamicist!
    It would be good to state and solve the equations of motion for cases where the acceleration is proportional to the velocity (plus an arbitrary function of position and time) - the resulting equations are very pleasing. It also shows why 'parabolic trajectories' in ballistics are not really parabolic when projectile is moving through a fluid.
    I also played a little game to see how many comments I had to scroll down before somebody gets to express something derogatory or unpleasant about her gender, or something irrelevant about her appearance - I got 13 (although #18 and #19 were little gems). I consider this to be an improvement from previous videos on this series. Now, comment order does change with users and with time, so the order might change. But it is an interesting state of affairs to say the least.

  • @zynk6538
    @zynk6538 8 лет назад +30

    Sponsored by Audible? NOT LIKE AUDIBLE SPONSORS EVERYTHING.

    • @juliusdictatorperpetuus2147
      @juliusdictatorperpetuus2147 8 лет назад +2

      Pretty sure Audible is the Illuminati of RUclips, only they don't bother with secrecy, they know no one will stop Audible taking over RUclips.

    • @Twitchi
      @Twitchi 8 лет назад

      +The Royal Gamer and its pointless advertising as well, every one knows audible, not many people can name ANYWHERE else to get an audio book

    • @Kaalyn_HOW
      @Kaalyn_HOW 8 лет назад +2

      +Twitchi -- AND, the "special offer" they give viewers with the "promo code"/links to, like, get a free audio book or 30-day trial (and like Squarespace and their 10% off, etc) are the same offers they give to all new users, no matter where they came from or how they found their site. You get nothing that regular people aren't getting by using the promos they make youtubers tout. The youtuber gets a small kickback when you use their link vs. just buying said item...but we as viewers save literally nothing. It's just a trick to make you THINK you're getting this cool special deal or a secret discount by watching a youtube channel you like. Nah, you aren't getting anything that everyone else isn't already getting.
      It'd actually be better if they DID give you a mild something for watching. Then it'd be worth all the ad space in the YT content. But if you're just forcing them to tell me that you simply _exist_ as if I didn't already know that, I'm annoyed. If there was a genuine "deal" we (or other followers/fans who did want the product) could get by watching them, then I'm less annoyed bc someone of us there are benefitting. But this way is just sleezy all-around. They all make bank, while we lose all the YT content time spent on their ads _and_ money after being misled. That's gross.

    • @ASLUHLUHCE
      @ASLUHLUHCE 5 лет назад +1

      Squarespace is also taking over youtube

    • @Vividlyvanilla
      @Vividlyvanilla 5 лет назад

      Tik tok is taking over RUclips and it's already to late😾😿😭😭😿

  • @Kaoji
    @Kaoji 8 лет назад

    Stoked for Uniform Circular Motion- this pacing is awesome.

  • @dukesook
    @dukesook 7 лет назад

    This is probably the best video I have ever seen.

  • @chase2806
    @chase2806 8 лет назад +22

    Goodness gracious I feel so dumb not understanding anything she is saying. I can follow what she says though.

    • @cyrusmufc2914
      @cyrusmufc2914 8 лет назад +2

      she's to fucking cute

    • @cyrusmufc2914
      @cyrusmufc2914 8 лет назад +1

      she's to fucking cute

    • @Vividlyvanilla
      @Vividlyvanilla 5 лет назад +1

      @@cyrusmufc2914 she is pretty but why did you say it two times but she's pretty but I don't like girls cause I am a girl

  • @thegaspatthegateway
    @thegaspatthegateway 6 лет назад +4

    Just some feedback, so you can ever improve your teachin' :) : when you declare that an interaction occurs, no matter how passing it made seem, can you reiterate WHY it happens in a teensy aside? When I don't understand the broader reasons for a thing, I start to get lost >o<
    otherwise, thank you for your work in putting out this wonderful free resource, all for the sake of bettering us. cheers!

  • @raulchachapalma2662
    @raulchachapalma2662 7 лет назад

    I have to say these classes are amazing that I decided to watch it again

  • @coursecreel
    @coursecreel 7 лет назад +1

    Wonderful lecture. Method of explanation is very good.

  • @BangMaster96
    @BangMaster96 7 лет назад +10

    umm what ...?

  • @Lottanubs
    @Lottanubs 8 лет назад +43

    Can't wait until she gets into quantum mechanics and relativity :P

    • @chowtom5174
      @chowtom5174 8 лет назад +14

      +Lottanubs that escalated quickly....

    • @emelradjo7788
      @emelradjo7788 8 лет назад

      +Lottanubs that would be nice

    • @hitormisshuh
      @hitormisshuh 6 лет назад

      It sounds bad already. How much more when you try to understand it...

    • @tintintintin2174
      @tintintintin2174 6 лет назад

      you shall try watching lectuers by walter lewis

  • @prakruthidesai2989
    @prakruthidesai2989 5 лет назад

    I'm not failing physics thanks to this! I owe you one, CrashCourse.

  • @newtube553
    @newtube553 4 года назад

    It's like talking to my teacher. I love it.

  • @TheFireflyGrave
    @TheFireflyGrave 8 лет назад +7

    So is friction the main reason why it's often easier to 'walk' a heavy piece of furniture rather than push it along the ground?

  • @lovefrombooks7
    @lovefrombooks7 8 лет назад +3

    already did terribly on my AP exam :(
    (totally rocked calculus today though...)

  • @Kadaver6
    @Kadaver6 4 года назад

    Her crazy scientist hair in this episode is great. I love it.

  • @surya8891
    @surya8891 8 лет назад

    nice explanation on kinetic and static friction .

  • @ErenMortel
    @ErenMortel 7 лет назад +4

    Sad we didn't get to talk about my crush's body sliding down to mine,,, God,,, how much friction

  • @ShawnRavenfire
    @ShawnRavenfire 8 лет назад +5

    Seinfeld's apartment!

  • @irekooo20
    @irekooo20 8 лет назад +1

    OMG , I can't wait for the rest of the courses :( !!! I LOV U

  • @PinkChucky15
    @PinkChucky15 8 лет назад

    I've been out of college for three years now but I really enjoy watching these videos :-)

  • @maxnieves4641
    @maxnieves4641 8 лет назад +6

    Never been this early

  • @Taevec
    @Taevec 8 лет назад +8

    I can't understand this stuff. I've gotta watch each video like 3 times. 😫

    • @Taevec
      @Taevec 8 лет назад

      Just to be clear, it's not you guys' fault. I just suck at math.😅

    • @KryscyRose
      @KryscyRose 8 лет назад +3

      your not the only one i think she just talked way too fast

    • @Taevec
      @Taevec 8 лет назад

      +KryscyRose They do break it down pretty well. It's just me. I'm just now figuring out normal force.😅

  • @davidkippy101
    @davidkippy101 7 лет назад

    Physics is much more important than history

  • @anastasiagavrilita6567
    @anastasiagavrilita6567 4 года назад

    Crash Course saves lives over and over again! Thank you so much for your hard work!

  • @thebluegremlin
    @thebluegremlin 8 лет назад +7

    I swear, I have heard her voice in a game somewhere

    • @MrDoob-xo3sm
      @MrDoob-xo3sm 8 лет назад +2

      +Xion Heart ikr

    • @OnionChoppingNinja
      @OnionChoppingNinja 8 лет назад +1

      +Xion Heart She sounds a bit like Samantha Traynor from Mass Effect 3. Think it has something to do with the British Accent.
      Not the same person though.

    • @MrDoob-xo3sm
      @MrDoob-xo3sm 8 лет назад +1

      OnionChoppingNinja hm...

    • @thebluegremlin
      @thebluegremlin 8 лет назад +1

      +OnionChoppingNinja hmm... not really
      maybe it is the accent

    • @aristidess1190
      @aristidess1190 8 лет назад +1

      +Xion Heart she speaks like margarie tyrell of game of thrones

  • @nealdesai8779
    @nealdesai8779 8 лет назад +23

    guys I have the solution to all your problems; hover over the video, click the gear in the bottom right, change speed to .5
    If only there was a .75

    • @eyadmardini8904
      @eyadmardini8904 8 лет назад +1

      +Ziggy Stardust chrome.google.com/webstore/detail/youtube-playback-speed-co/hdannnflhlmdablckfkjpleikpphncik

    • @AthAthanasius
      @AthAthanasius 8 лет назад +2

      +Ziggy Stardust Yeah, if nothing else the editors need to adjust things to have equations visible on the screen for more than 1-2s. Ideally they should be there for the entire period of time they're being talked about.

    • @BlueyMcPhluey
      @BlueyMcPhluey 8 лет назад +3

      +Ziggy Stardust it sounds like she's drunk if I listen to it at 0.5x

    • @anywallsocket
      @anywallsocket 8 лет назад

      +josh mcgee i thought she sounded blazed haha xD

    • @nealdesai8779
      @nealdesai8779 8 лет назад

      ***** the latest vid she made is much easier to understand. They listened to the advice and they've fixed the issue.

  • @FirstRisingSouI
    @FirstRisingSouI 8 лет назад

    Watching at 1.5 speed because I'm a grad student and I've taught this stuff, but still feel obligated to view everything that Crash Course puts out.

  • @benlyman7880
    @benlyman7880 7 лет назад +1

    If two kittens are sitting on a slanted roof, which one will slide off the edge first?
    The one with the smaller mu!

  • @ShermanistDruid
    @ShermanistDruid 8 лет назад +3

    You missed the friction she actuated on my heart strings...

  • @ranshibuki9659
    @ranshibuki9659 7 лет назад +3

    shini do you ever brush your hair xD ?

  • @Kana-hp6yo
    @Kana-hp6yo 6 лет назад

    I want to watch this tomorrow at 7am