Conceptual Physics Paul Hewitt: why the sky is blue and sunsets red

Conceptual Physics: Why the sky is blue and sunset red.

Пікірлер: 119

  • @palasako8732
    @palasako87329 жыл бұрын

    Am reading this guy's textbook right now. Absoloutely the most brilliantly well done book EVER. So simple and concise. It lacks in teaching the math side of physics but OWNS on the conceptual side.

  • @falsehoodbasher7240

    @falsehoodbasher7240

    7 жыл бұрын

    Well teachers test the math side so how screwed are you right now ;)

  • @con-gic.ceptlo8984

    @con-gic.ceptlo8984

    3 жыл бұрын

    That what we need from physics. Once you understand the concept, it is easy to calculate. Concept is the base for the derivation of formulas.

  • @moodyblue1727
    @moodyblue172710 жыл бұрын

    This amazing man was my Conceptual Physics teacher at City College of San Francisco in the late 70's... he wrote the book and watching this video brought back some great memories... One of the few professors names I can remember from those days and that was due to the impact he had on his students.

  • @moodyblue1727

    @moodyblue1727

    10 жыл бұрын

    That I was!

  • @ameralamer7456

    @ameralamer7456

    7 жыл бұрын

    Lucky you!

  • @peretzo

    @peretzo

    6 жыл бұрын

    Red Remley i have his books. i envy you for actually having been taught by him

  • @amarj9909

    @amarj9909

    4 жыл бұрын

    @@peretzo 1.may I know what are those books? He used refer you guys .. 2.if possible can u mention some of his books. 3.Where can I find his full lectures from online?

  • @peretzo

    @peretzo

    4 жыл бұрын

    Amar J Conceptual Physics (by Paul G. Hewitt), Conceptual Physical Science Explorations (same author...). Great books. Look them up on Amazon

  • @jacoblara4820
    @jacoblara48202 жыл бұрын

    I love Paul Hewitt, I always called him the Bob Ross of physics he’s so passionate and happy about what he’s doing

  • @wordierneptune6121
    @wordierneptune61219 жыл бұрын

    I wish we had teachers like this at our school... my teachers don't remember that learning can also be fun :.(

  • @zeporion6091
    @zeporion60916 жыл бұрын

    You can hear the class giggle when he says "vibrators."

  • @McRat1968
    @McRat196814 жыл бұрын

    I still remember the day I was in his class in 1987 and he posed this sky question: As soon as he asked, "Why is the sky blue?" I countered, '...It IS?!?!?!" ...(I live in Pacifica, where it's often grey!) LOL. :)

  • @bijutashok
    @bijutashok12 жыл бұрын

    This is awesome... I have been a Physics Teacher for last 10 years and I have never inspired the students like this... he has perfect conceptual clarity over the subject matter... really inspires me to be like him, 'an inspiring teacher'... thank you for sharing this video...

  • @oliobgmoti-bulgaria8401
    @oliobgmoti-bulgaria84014 жыл бұрын

    I cant stop watching these videos 😄

  • @Mswordx23
    @Mswordx2311 жыл бұрын

    Now, listen up, gang. Raise your hand if you think this is the greatest teacher ever. Check your neighbor. Who says, "Yeah, that guy's pretty darn great!"? Is he? The answer begins with a 'Y'. Ends in an "es". YES!

  • @kodeine222
    @kodeine2223 жыл бұрын

    paul hewitt is my favorite teacher

  • @mrvlhs
    @mrvlhs11 жыл бұрын

    4:00 "We can do this experimentally" My favourite words.

  • @angelicabaroso2154
    @angelicabaroso21542 жыл бұрын

    I just read his book and now i'm watching him teach. Unbelievable. Great teaching strategy 🥰

  • @GrasiCarter15
    @GrasiCarter1510 жыл бұрын

    his book conceptual physics is amazing too

  • @SmartWentCrazy
    @SmartWentCrazy6 жыл бұрын

    This guys series is great!

  • @pushpamsingh3870
    @pushpamsingh3870 Жыл бұрын

    The beauty of science is you can do it experimentally, not only in your head.

  • @varunnurab
    @varunnurab10 жыл бұрын

    I wish I could be there. Never saw such a teacher. Awesome!

  • @rrekaj13
    @rrekaj1313 жыл бұрын

    I hope I have a professor like this when I go to college.

  • @kaskagonera2874
    @kaskagonera28748 жыл бұрын

    wow what an excellent teacher, great video, very informative !

  • @salimk5518
    @salimk551811 жыл бұрын

    the most amazing teacher

  • @misswhiplashish
    @misswhiplashish11 жыл бұрын

    Fantastic!! Even if slightly scary...I'd love Physics tutor like that!

  • @em-ef8be
    @em-ef8be4 жыл бұрын

    Love you Paul 💞💕💓💞💖💘

  • @carmenjohnson9138
    @carmenjohnson913811 жыл бұрын

    Beautiful

  • @soosoo599
    @soosoo5992 жыл бұрын

    KIND OF TEACHERS WE NEED. I JUST WANT TO FORWARD THIS TO MY PHYSICS TEACHER, PROBABLY I'LL BE SCOLDED AND THAT'S WHAT MAKES THE DIFFERENCE.

  • @kungfukiddie7332
    @kungfukiddie73323 жыл бұрын

    legend!

  • @Bike4life5
    @Bike4life511 жыл бұрын

    That was beautiful.

  • @arpanpiano
    @arpanpiano Жыл бұрын

    beautiful explanations!!

  • @Vermathorax
    @Vermathorax11 жыл бұрын

    I am so lucky. This guy reminds me of my Physics teacher :) my teacher had a tendency to trow things... Great video, thanks :)

  • @dosvecesj3222
    @dosvecesj32224 жыл бұрын

    Loved the book...

  • @kylefer
    @kylefer12 жыл бұрын

    This guys awesome.

  • @darshanikumari5573
    @darshanikumari55734 жыл бұрын

    Woow ..actually very nice..

  • @vinaydeshpande3643
    @vinaydeshpande364310 жыл бұрын

    what a teacher ! i wonder if i would have got him !

  • @taymabekawi5271
    @taymabekawi52718 жыл бұрын

    so amazing lecture 😍😍😍😍😍

  • @justinwinn01
    @justinwinn012 жыл бұрын

    I like this man

  • @SushilKumar-mp4tg
    @SushilKumar-mp4tg10 жыл бұрын

    it has to be the best explanation unquestionably......everyone i heard was just beating around the bush .They were not not getting to the point just repeating the same shit ie scattering is inversely proportinal to wavelength. May be they themself didnt understood it.........great job.

  • @alexhewitt1000
    @alexhewitt100012 жыл бұрын

    THIS IS MY GRANDPA

  • @sunritroykarmakar4406

    @sunritroykarmakar4406

    5 жыл бұрын

    Alex Hewitt WOW

  • @ModestMuslimah15
    @ModestMuslimah1511 жыл бұрын

    He's totally great. Teach me in Physics HL please.

  • @kodeine222
    @kodeine2223 жыл бұрын

    how do they hear blue ?how did they know that and when he said bling or bring

  • @amberspicks547
    @amberspicks547 Жыл бұрын

    Blue eyes are from Rayleigh scattering, too… so what exactly is vibrating in that case? And they are at least a wavelength apart? And what about grey eyes?

  • @mybluemars
    @mybluemars10 жыл бұрын

    This is the best explanation I have ever heard about this.

  • @falsehoodbasher7240

    @falsehoodbasher7240

    7 жыл бұрын

    So a dictator " teacher "'s explanation is "the best" to you SMH

  • @Azmina_the_warlock

    @Azmina_the_warlock

    6 жыл бұрын

    Sunnism EXPOSED: The Hidden Sect dude what is your deal?

  • @abcdef2069
    @abcdef20697 жыл бұрын

    at 2:02, O2 and N2 he said and they interact with light he said to look blue later, the fact is the visible lights do not interact with O2 and N2, or we will have the massive green house effect, the light interacts with CO2 and H2O and CH4. can someone explain this to me why blue in the molecular level, not in the paul level. everyone know UV and infrared is opaque in H2O, only the visible spectrum of lights can pass through the air so that all life form on earth see the visible range only. opaque means absorbed, scattered then interact often to be absorbed again.

  • @jaymcd84
    @jaymcd8414 жыл бұрын

    YESSSSSS!

  • @some_one_2_3
    @some_one_2_34 жыл бұрын

    I don't think the experiment was that clear, but is diagram and explanation was brilliant!

  • @alexandriaboire5164
    @alexandriaboire516411 жыл бұрын

    Love this guy...an ol'gal gets it! WOW.

  • @azadkhachatrian4474
    @azadkhachatrian44747 жыл бұрын

    loving all the sarcasm in the comments

  • @DedicatedCinema
    @DedicatedCinema11 жыл бұрын

    What grade is this for?

  • @wownoob1234567890
    @wownoob123456789012 жыл бұрын

    I love this guy lol

  • @dianakris14
    @dianakris1413 жыл бұрын

    I really learned a lot.... :D

  • @grzegorz16100

    @grzegorz16100

    7 жыл бұрын

    That is what bible says!!!

  • @xanecrown4545
    @xanecrown454511 жыл бұрын

    alter the composition of the atmosphere and get your wish

  • @sandsnakesinmypants
    @sandsnakesinmypants12 жыл бұрын

    paul hewitt words: gang, honey, "yee!", check your neighbor, begins with... ends with...

  • @cwliias
    @cwliias12 жыл бұрын

    I would be so frustrated in this guy's class, i wouldn't be able to learn like this at all XD

  • @Hajeh22
    @Hajeh2211 жыл бұрын

    This guy reminds me so much of John C. McGinley

  • @wazer7693
    @wazer769311 жыл бұрын

    reallY ?? u so lucky!!

  • @valtih1978
    @valtih19789 жыл бұрын

    What is the proper color of the Sun? I think that this is important also. Sun is not white because it is absolute black body and black bodies have a mode in the spectrum.

  • @matunam250

    @matunam250

    9 жыл бұрын

    Valentin Tihomirov it all depends on the light that you see from it, but the sun's natural color is most likely white, because it gives off so much light, and when mixed, they become white

  • @valtih1978

    @valtih1978

    9 жыл бұрын

    Which law says that maximum fades off when all amplitudes rise?

  • @AdrianVrabie
    @AdrianVrabie11 жыл бұрын

    So how come we never see a green sun?

  • @AlbertoRojo0
    @AlbertoRojo06 жыл бұрын

    Nice lecture, but unfortunately the explanation is wrong. The "bells" (atoms in the sky) are not resonating with their own proper frequencies (high for smaller bells). The molecules are FORCED to vibrate at the frequency of light. And they reemit light at that very same frequency. Interestingly, when the frequency of the force applied (light) is very different (much smaller) than the natural frequency of the "bells", the amplitude of the light emitted is independent of the frequency. So all the molecules, when excited by different frequencies of light, oscillate with the same amplitude. Now, the electric field emitted by an oscillating molecule is proportional to the acceleration, which in turn is proportional to the frequency squared. And the energy reemitted is proportional to the square of the acceleration, which in turn is proportional to the frequency to the fourth power. In short, the the reason why the sky is blue not the higher "pitch" of the bells.

  • @IceCregon
    @IceCregon12 жыл бұрын

    BE MY TEACHER PLZ!

  • @clippedwings225
    @clippedwings2259 ай бұрын

    The only good thing about my physics teacher is that he played Paul Hewitt lectures for us. Other than that he was just an ass.

  • @chenmaluto
    @chenmaluto12 жыл бұрын

    I want him to be my teacher. :)

  • @Myoo263
    @Myoo2638 жыл бұрын

    why is he not memeing

  • @dayswillburn777
    @dayswillburn77712 жыл бұрын

    @kapullas physics is the study of God's design, think of it tht way:P

  • @cecariah0263
    @cecariah026313 жыл бұрын

    BING! The little bell goes bing! moluc --c MOLUSK

  • @mishfishy7645
    @mishfishy76455 жыл бұрын

    Physics daddy

  • @cbsk341
    @cbsk34111 жыл бұрын

    What starts with F and ends with iziks? Fiziks!!! Yee

  • @btirador
    @btirador11 жыл бұрын

    Teach my class please

  • @anonymousperson1170
    @anonymousperson117010 жыл бұрын

    the sun 150,000,000,000 kms away

  • @theperfectionist

    @theperfectionist

    6 жыл бұрын

    wrong, it is 150 million kms away not 150 billion

  • @N0Xa880iUL

    @N0Xa880iUL

    3 жыл бұрын

    @@theperfectionist Or 1 A.U.

  • @inconceivableabysses
    @inconceivableabysses10 жыл бұрын

    I thought you could only hear colors if you were on acid.

  • @ActiveStorage
    @ActiveStorage13 жыл бұрын

    up in the sk sk sk sky?? molec c c cules fing gold!!

  • @commanderthorkilj.amundsen3426
    @commanderthorkilj.amundsen342610 ай бұрын

    He’s written and illustrated outstanding HS and college textbooks. Has an engaging style, but uses over-done gesturing and oddly chosen objects to explain principles, felt to be distracting, by my students. They found his books more helpful

  • @kokkosbollful
    @kokkosbollful11 жыл бұрын

    e=mc^2 its all i know

  • @karenepic
    @karenepic13 жыл бұрын

    @kapullas haha

  • @LionDusty
    @LionDusty13 жыл бұрын

    HC gang?

  • @dackelvotoc6477
    @dackelvotoc64778 жыл бұрын

    The reason sun set is red because the sun is moving away from the observer :)

  • @theearthisconcave1395

    @theearthisconcave1395

    8 жыл бұрын

    yes on a geocentric universe :)

  • @falsehoodbasher7240

    @falsehoodbasher7240

    7 жыл бұрын

    Can geocenticists pass physics?

  • @theearthisconcave1395
    @theearthisconcave13958 жыл бұрын

    this is highly incorrect, the sun is apparently millions of miles km not thousands , and the reason there is a blue sky and a red sky is because the sun is actually very close! and it moves around us! we live in a geocentric universe, as the sun moves towards you blue shift, as the sun moves away red shift

  • @poldiam

    @poldiam

    8 жыл бұрын

    Wtf?

  • @rolefko4189

    @rolefko4189

    6 жыл бұрын

    Earth is not A Globe , stay in your egocentric universe.

  • @sunritroykarmakar4406

    @sunritroykarmakar4406

    5 жыл бұрын

    LOL

  • @Espionage-gq6ds

    @Espionage-gq6ds

    2 жыл бұрын

    Dude I think you should've some hot dogs with extra chilli to get out of your illusioncentric universe.

  • @dsanzo
    @dsanzo12 жыл бұрын

    @saris42 1. get some sense of humor. 2. you need to use your brain to understand physics ultimately, you need to be abstract.

  • @saris42
    @saris4213 жыл бұрын

    Way to NOT explain... Worst example EVER. Sounds tuning forks???/ imagination???/ and then he tells us that we do experiments to test these things out, not just in our head.. And then the whole "Experiment" is forced to be in their imaginations..

  • @wazer7693
    @wazer769311 жыл бұрын

    u stupid

  • @kapullas
    @kapullas13 жыл бұрын

    Sky is blue because God wanted to.

  • @falsehoodbasher7240
    @falsehoodbasher72407 жыл бұрын

    This dudes the epitome of tyranny. Demanding his poor children REGURGITATE his forceful spewings and get upset when they start to show signs of INDEPENDENT THINKING. Wow

  • @ChrisdoperMichigan

    @ChrisdoperMichigan

    6 жыл бұрын

    Thank you what the fuck this isn't first grade english class fucking jackass

  • @em-ef8be
    @em-ef8be4 жыл бұрын

    Love you Paul 💞💕💓💞💖💘