How Fast Is It - 02 - The Speed of Light (4K)

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In this segment of the “How Fast Is It” video book we cover the speed of light. We start with the slow-moving snail and work up through people, animals, birds, cars, aircraft and spaceships. Along the way we graph speeds on a space-time diagram. Following the history of land speed records, we cover the speed of sound and include its nature as a longitudinal wave and its speed in dry air and the sound barrier. We then cover the Galilean transformations for converting speeds from one reference frame to another. We increase the velocities to the point where we see light traveling at different speeds as far as the Galilean transformations are concerned. We then show how Galileo tried and failed to measure the speed of light; Roemer’s use of Jupiter’s moon Io; and then we show how Antonio Louis Fizeau did measure the speed of light. We’ll also cover Maxwell’s speed of light calculations; We then cover wave interference and the Michelson Interferometer. And using the interferometer, we cover the Michelson-Morley experiment that showed that the speed of light was a constant. We finish with a look at the two main modern ways for measuring the speed of light.
Music:
@01:04 Giachino Rossini - William Tell Overture; London Philharmonia Orchestra; from the album The London Philharmonic Collection: Light Classics 2009
@01:53 Beethoven - Symphony No 7 Allegretto; Carlos Kleiber & Wiener Philharmoniker; from the album Beethoven: Symphonies Nos.5 & 7 1995
@13:12 Mozart - Violin Concerto No 5 Turkish II; Christian Altenburger, German; from the album 50 Must-Have Adagio Masterpieces 2013
@28:14 Joseph Haydn - Symphony No 98; Cappella Coloniensis; from the album 50 Must-Have Adagio Masterpieces 2013
@38:32 Chopin - Raindrops; from the album The Romantic World of Chopin's Piano, Vol. 3 2000

Пікірлер: 393

  • @justinkelleher3405
    @justinkelleher3405 Жыл бұрын

    Glad to see you're still making these videos David!

  • @manofcultura

    @manofcultura

    Жыл бұрын

    He’s a KZread treasure

  • @ltrizzle12
    @ltrizzle12 Жыл бұрын

    Why the hell does he not have a million subscribers already??? Sir Butler, your work product sits atop the highest shelf-among the best media available to anyone anywhere. Please never stop dropping these beautiful bombs. 🤘😆🤘

  • @dennistafeltennis1190

    @dennistafeltennis1190

    Жыл бұрын

    This channel should have at least 161 million subs. But i guess only intelligent people enjoy the awesome voice of Mr Butler.

  • @qtythandle

    @qtythandle

    Жыл бұрын

    Sir Butler is worth more than a thousand preachers.

  • @Alasdair-Morrison

    @Alasdair-Morrison

    Жыл бұрын

    Because he doesn't need numbers to show how brilliant he is, we already know

  • @ltrizzle12

    @ltrizzle12

    Жыл бұрын

    @@Alasdair-Morrison WE know. That’s selfish if we feel his popularity and growth should cease expansion. He needs numbers so even more people can discover how brilliant he is, as their lives can also become enriched through his work. AND those numbers directly translate to Mr. Butler maximizing profit in well-deserved celebration of his efforts. Let’s help my man get paid. Those are numbers we can all agree he deserves. 😎

  • @Edison73100

    @Edison73100

    Жыл бұрын

    Because people are not intersted in getting smater, just entertained.

  • @Youssef_Salmane
    @Youssef_Salmane Жыл бұрын

    This is the most underrated channel on this platform, I really appreciate the hard work that Mr Butler puts in these videos to teach us

  • @supejc
    @supejc Жыл бұрын

    The master has returned

  • @diaby90
    @diaby90 Жыл бұрын

    Sir, I really must say, you are so great and so humble. And obviously SO BRILLIANT.

  • @vladcimpeanu
    @vladcimpeanu Жыл бұрын

    So glad to see you back with uploads! I can't wait to get to enjoy this video in full quality. I remember how thrilled I was the first time I found your video series, and enjoyed them time and time again. Thank you! And have a wonderful time watching the updates from the James Webb telescope.

  • @aberetumenete
    @aberetumenete Жыл бұрын

    Mr. Butler ...you are a GIFT.... thank you very much for your patience , your dedication, and for beeing a real TEACHER, in the broadest sense of the word.

  • @CORZER0
    @CORZER0 Жыл бұрын

    It's a true blessing to have you and learn from you, Mr. Butler.

  • @elblack25
    @elblack25 Жыл бұрын

    thanks David, love your work and dedication, i can finally understand many things, greetings from Venezuela

  • @badtrip801
    @badtrip801 Жыл бұрын

    Love the videos...thank you for your time sir 💨

  • @jimgraham6722
    @jimgraham6722 Жыл бұрын

    Thanks David, great educational video.

  • @oopsiesh
    @oopsiesh Жыл бұрын

    thank you so much for these videos!! Beautiful composition

  • @matthewabln6989
    @matthewabln6989 Жыл бұрын

    Astounding.

  • @wolfumz
    @wolfumz Жыл бұрын

    Hey, mr.butler, I'm not one of these weirdos and conspiracy theorists who think you're doing something awful by sharing about how we know that there is a speed of light. I just wanted to chime in and say that I think your channel rules. I wish these weirdos would go away, but that's the internet for you. It makes me so happy, every time I see you post. I appreciate that it takes a lot of hard work, research, and expertise to produce these...

  • @davidyancey2807

    @davidyancey2807

    Жыл бұрын

    This one has the light! Praise! Praise! God keep you brother LOL.

  • @GammaCruxis
    @GammaCruxis Жыл бұрын

    It’s like Christmas when you release these. Thank you and well-wishes for a long time to come!

  • @JMSTipsAndTricks
    @JMSTipsAndTricks Жыл бұрын

    Thank you for so eloquently and succinctly sharing this wonderful information and the history of how people figured this all out. Brilliant job

  • @willk7184
    @willk7184 Жыл бұрын

    It is so helpful to have the graphics go slow enough that we have time to comprehend what's really happening. Thanks for your patient and lucid explanations!

  • @dennistafeltennis1190
    @dennistafeltennis1190 Жыл бұрын

    I wonder how fast the Universe is expanding. One thing is for sure it moves faster then light.

  • @JimmyFigueroa
    @JimmyFigueroa Жыл бұрын

    I love these type of videos. Keep uploading!

  • @Vazmenko
    @Vazmenko Жыл бұрын

    Thank You Sir David. Impeccable as usual.

  • @austinballard3818
    @austinballard3818 Жыл бұрын

    This deserves more views than it has.

  • @colspiracy8326

    @colspiracy8326

    Жыл бұрын

    OK I agree. I'm going to watch it 3 times. 👍

  • @ami2evil

    @ami2evil

    Жыл бұрын

    Nah, most people are far too stupid to comprehend any of this...

  • @frauleinhohenzollern8442
    @frauleinhohenzollern844210 ай бұрын

    ".... His conclusion was: light was very fast" I don't know why but that got me to chuckle

  • @askavalnathan379
    @askavalnathan379 Жыл бұрын

    What a great video. Thankyou David.

  • @user-bl1pw2th4l
    @user-bl1pw2th4l Жыл бұрын

    I love David. Fantastic content

  • @tadswanchanyarakskul2532
    @tadswanchanyarakskul2532 Жыл бұрын

    I'm so glad that you continue to produce more beautiful videos. Thank you so much Mr. Butler. I'm in tears.

  • @AbdulMateen-nt4er
    @AbdulMateen-nt4er Жыл бұрын

    Was waiting for it. Thank you Mr David 🙏

  • @luminousfractal420
    @luminousfractal420 Жыл бұрын

    👍 for giving the snail some water for the vid :)

  • @frauleinhohenzollern8442

    @frauleinhohenzollern8442

    10 ай бұрын

    Looks like he gave the tiger angelfish water too!!!

  • @ironheart6704
    @ironheart6704 Жыл бұрын

    Thank you for en-lightining us, mr Butler. :D

  • @RonnieD1970
    @RonnieD1970 Жыл бұрын

    Awesome! More amazing content as usual!

  • @OVAstronomy
    @OVAstronomy Жыл бұрын

    Excellent video on an otherwise complicated and hard to explain topic!

  • @G274Me
    @G274Me Жыл бұрын

    Beautiful backyard indeed, and an even more beautiful cosmos we find ourselves in.

  • @rosellabill
    @rosellabill Жыл бұрын

    Great work helping us appreciate the different things. Including snails, the World has to offer.

  • @beekneed
    @beekneed Жыл бұрын

    Watching these is a true joy. Thank you so very much for your dedication to such high quality communication. I missed the math & science boat growing up: I can barely multiply fractions and still don't know the order of operations. In spite of what might to some sound like a total disqualification for appreciation of the world of physics, I feel such a thrill of discovery and enlightenment while watching your videos, regardless. I can at least enjoy some small part of wonder in the beauty and elegance of our world, and an immense appreciation of & gratitude for the minds and dedication of the thinkers & scientists who CAN "do the math."

  • @wheelerdealer7098
    @wheelerdealer7098 Жыл бұрын

    Greetings from uk. Love you're channel ❤️ keep up the great work 👍

  • @mysterycrumble
    @mysterycrumble Жыл бұрын

    your videos are fantabulously good, sir!

  • @rkristel82
    @rkristel82 Жыл бұрын

    I'm doing my part for the KZread algorithm. Keep up the amazing work!

  • @jimc.goodfellas226
    @jimc.goodfellas226 Жыл бұрын

    Who else has been waiting for Mr Butler to upload one of these longer videos?

  • @Plancksized
    @Plancksized Жыл бұрын

    This is my favorite series on all of KZread

  • @comepoopatmyhouse
    @comepoopatmyhouse Жыл бұрын

    These videos are legendary

  • @oleran4569
    @oleran4569 Жыл бұрын

    Wonderful stuff!

  • @carlosbauza1139
    @carlosbauza1139 Жыл бұрын

    Thankyou...Very Much! Special work that is deeply appreciated!

  • @reynal_omnicide9217
    @reynal_omnicide9217 Жыл бұрын

    46 minutes of high quality content

  • @knallpistol
    @knallpistol Жыл бұрын

    Notifications didn't work. This is the only channel I have them turned on for. ❤️ Quality content.

  • @frankelkjr8041
    @frankelkjr8041 Жыл бұрын

    So excited to see a new video from you, I've been patiently waiting!

  • @ronalddepesa6221
    @ronalddepesa6221 Жыл бұрын

    Your videos are Amazing

  • @EndureTemptation
    @EndureTemptation Жыл бұрын

    Dude found and excellent hobby for himself in retirement making these videos. Invaluable for future generations! And for me.

  • @drhmufti
    @drhmufti Жыл бұрын

    I’m gonna hide this video from my Gran…. Those shorts! Young Man!!

  • @boazbrisker81
    @boazbrisker81 Жыл бұрын

    You are a treasure 🙏🏻 waiting for my kids to grow so we'll watch together your channel

  • @nicosmind3
    @nicosmind3 Жыл бұрын

    I genuinely said "oh my god" out loud in excitement, then laughed at myself for my reaction 😅

  • @prodfauxes
    @prodfauxes Жыл бұрын

    Thank you Mr. Butler for fixing my sleep schedule

  • @kjhman
    @kjhman Жыл бұрын

    These videos are fucking fantastic. Such a breath of fresh air compared to the other stuff that’s out there with a a bunch of ads and people begging for likes and subscribes. Thank you for putting out great content in this day and age.

  • @tpwb5882
    @tpwb5882 Жыл бұрын

    Thank you sir 🙏🏼🙏🏼🙏🏼 this is our favorite KZread channel about science on the internet. God bless you more health and happiness

  • @fanofhumidity
    @fanofhumidity Жыл бұрын

    David, thank you for all of the great videos over the years!

  • @Beer4Breakfast
    @Beer4Breakfast Жыл бұрын

    What an excellent lecture thank you

  • @goodboy1269
    @goodboy1269 Жыл бұрын

    One of my favorite guys, Professor B 😎

  • @christinestill5002
    @christinestill5002 Жыл бұрын

    Glad to hear you haven't softened or dumbed down the music!

  • @osvaldo17924
    @osvaldo17924 Жыл бұрын

    Thank you Mr. Butler. It’s so glad to see you back in the channel. I hope you can make a video about JWST. 🙏🏻

  • @michelmayhem
    @michelmayhem Жыл бұрын

    I absolutely love this channel. Thank you so much for all the great work!

  • @kevinhanley3023
    @kevinhanley3023 Жыл бұрын

    Thank you David

  • @Igor-ug1uo
    @Igor-ug1uo Жыл бұрын

    Thank you, Mr. Butler. I have been watching your lessons for a few years and I've always enjoyed your explanations as well as the presentation. I'm glad you keep doing this work.

  • @eliotsalandybrown
    @eliotsalandybrownАй бұрын

    These videos are magical treats

  • @ajpyyz
    @ajpyyz Жыл бұрын

    So glad to see you are back once again!! Love your videos

  • @losertocloser
    @losertocloser Жыл бұрын

    Love your videos David, thank you

  • @davidyancey2807
    @davidyancey2807 Жыл бұрын

    My favorite channel. Butler is a master.

  • @negrotski
    @negrotski Жыл бұрын

    This channel is hella value

  • @heyyouguuys7939
    @heyyouguuys7939 Жыл бұрын

    Love this channel I've missed this

  • @endsinvention1390
    @endsinvention1390 Жыл бұрын

    These are so awesome. Thank you so much!

  • @xarzu
    @xarzu Жыл бұрын

    David, I am grateful for the work you do. It is the most entertaining thing on youtube. Honesty is refreshing. And science if honesty.

  • @JapanZen
    @JapanZen Жыл бұрын

    Glad to see a new video from you David

  • @sup5356
    @sup5356 Жыл бұрын

    Thank you David. Excellent commentary

  • @entropyachieved750
    @entropyachieved750 Жыл бұрын

    After all these years of watching you, your channel is still amazing and finally getting the views it deserves. May many more years of wonderful teaching and discoveries come

  • @mirkono
    @mirkono Жыл бұрын

    Thank you sir!

  • @Allworldsk1
    @Allworldsk1 Жыл бұрын

    Waited for this. Thank you 🌌🌌

  • @CobraQuotes1
    @CobraQuotes1 Жыл бұрын

    My favorite youtuber of all time, david butler!

  • @trenttan3779
    @trenttan3779 Жыл бұрын

    So glad to see a new video upload! Always informative and enjoyable! Thank you, Sir!!!

  • @harshalmehta8281
    @harshalmehta8281 Жыл бұрын

    Happy to see you back. Your voice is so calming

  • @davidyancey2807
    @davidyancey2807 Жыл бұрын

    God bless you for trying to school even some of the idiots that left the comments below. I get a little nutty myself sometimes so I am very grateful to have your work to watch to ground me, I have no way to tell you how much that means, but please accept my humble thanks for keeping the light alive.

  • @waveyoctober1049
    @waveyoctober1049 Жыл бұрын

    Thank you for the videos

  • @steveseamans9048
    @steveseamans9048 Жыл бұрын

    David, l’ve seen most of your videos and I just have say you are a extraordinary teacher. So clear and thoughtful. I just love your work! 😊

  • @invalidglitch
    @invalidglitch Жыл бұрын

    Glad your back .. was looking for something new.. Will keep this for my Saturday night screen cast ... enjoy all your work.

  • @junkequation
    @junkequation Жыл бұрын

    so excited for this upload

  • @rwam3
    @rwam3 Жыл бұрын

    I think David is the only KZreadr who does ADR and I love it!

  • @y5mgisi
    @y5mgisi Жыл бұрын

    Love these videos!

  • @ChampuStrike
    @ChampuStrike Жыл бұрын

    Glad to see another video from you, very interesting

  • @paulcooper8818
    @paulcooper8818 Жыл бұрын

    Nice to see new content from you.

  • @YaMumsSpecialFriend
    @YaMumsSpecialFriend Жыл бұрын

    Always look forward to your updates and new presentations, fascinating indeed🖖🏼

  • @GhostHawk76
    @GhostHawk76 Жыл бұрын

    Glad to see you again sir!

  • @nationalleagueofconcernedc6897
    @nationalleagueofconcernedc6897 Жыл бұрын

    Love your videos!!!

  • @williamtao2744
    @williamtao2744 Жыл бұрын

    thank you!

  • @Just.A.T-Rex
    @Just.A.T-Rex Жыл бұрын

    I hope you’re doing well mr. butler. You’re videos have been a nighttime staple for myself for years and I’m so happy more are still being released a just know you’re out here changing life’s with knowledge and information. You rock!

  • @Youssef_Salmane
    @Youssef_Salmane Жыл бұрын

    Just adding a comment so that the algorithm recommends the video to more people

  • @muffinman8744
    @muffinman8744 Жыл бұрын

    Love this

  • @jeremyhuggins1369
    @jeremyhuggins1369 Жыл бұрын

    This is one of the few channels where, due to the exceptional content, I always give a thumbs up before the video loads. Thank you!!!

  • @scrub_trash6680
    @scrub_trash6680 Жыл бұрын

    Hey david, im so happy to see the channel growing. I wish instead of 4k versions it was a new series :( But what you have produced is already a gold standard for science communication. Im so proud of you.

  • @birenkumarg6663
    @birenkumarg6663 Жыл бұрын

    Thank you for contributing the hidden knowledge of the universe and enlightening us in the simplest way. Keep such vibrations up 👍

  • @hemnaziz8899
    @hemnaziz8899 Жыл бұрын

    Peace be upon you, sir. Your scientific posts are very important. I wish you health and safety.

  • @kraxzor
    @kraxzor Жыл бұрын

    Thank you for all your videos. They are excellent.

  • @rickwhite4137
    @rickwhite4137 Жыл бұрын

    What an _excellent_ teacher. He's like my math teacher at university. 💯 🥇

  • @sarahlyons4552
    @sarahlyons4552 Жыл бұрын

    So glad to see a new video! I got through my pregnancy insomnia watching your videos, and accidentally became educated on some pretty cool stuff. Now I’m hooked!

  • @davebewshey1549
    @davebewshey1549 Жыл бұрын

    Agreed thank you for the incredibly thoughtful informative content.