How Fast Is It - 02 - The Speed of Light (4K)
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- čas přidán 26. 07. 2022
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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
Glad to see you're still making these videos David!
He’s a CZcams treasure
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.
🤘😆🤘
This channel should have at least 161 million subs.
But i guess only intelligent people enjoy the awesome voice of Mr Butler.
Sir Butler is worth more than a thousand preachers.
Because he doesn't need numbers to show how brilliant he is, we already know
@@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. 😎
Because people are not intersted in getting smater, just entertained.
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
The master has returned
Sir, I really must say, you are so great and so humble.
And obviously SO BRILLIANT.
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.
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...
This one has the light! Praise! Praise! God keep you brother LOL.
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.
It's a true blessing to have you and learn from you, Mr. Butler.
thanks David, love your work and dedication, i can finally understand many things, greetings from Venezuela
Thanks David, great educational video.
Love the videos...thank you for your time sir 💨
thank you so much for these videos!! Beautiful composition
It’s like Christmas when you release these. Thank you and well-wishes for a long time to come!
Astounding.
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!
Thank you for so eloquently and succinctly sharing this wonderful information and the history of how people figured this all out. Brilliant job
Thank You Sir David. Impeccable as usual.
What a great video. Thankyou David.
I love these type of videos. Keep uploading!
I love David. Fantastic content
Was waiting for it. Thank you Mr David 🙏
I'm so glad that you continue to produce more beautiful videos. Thank you so much Mr. Butler. I'm in tears.
Awesome! More amazing content as usual!
This deserves more views than it has.
OK I agree. I'm going to watch it 3 times. 👍
Nah, most people are far too stupid to comprehend any of this...
".... His conclusion was: light was very fast"
I don't know why but that got me to chuckle
Wonderful stuff!
Thankyou...Very Much! Special work that is deeply appreciated!
I wonder how fast the Universe is expanding.
One thing is for sure it moves faster then light.
I absolutely love this channel. Thank you so much for all the great work!
So excited to see a new video from you, I've been patiently waiting!
So glad to see you are back once again!! Love your videos
👍 for giving the snail some water for the vid :)
Looks like he gave the tiger angelfish water too!!!
David, I am grateful for the work you do. It is the most entertaining thing on youtube. Honesty is refreshing. And science if honesty.
Waited for this. Thank you 🌌🌌
David, thank you for all of the great videos over the years!
Greetings from uk. Love you're channel ❤️ keep up the great work 👍
Beautiful backyard indeed, and an even more beautiful cosmos we find ourselves in.
Love your videos David, thank you
Great work helping us appreciate the different things. Including snails, the World has to offer.
Thank you David. Excellent commentary
Happy to see you back. Your voice is so calming
Excellent video on an otherwise complicated and hard to explain topic!
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."
So glad to see a new video upload! Always informative and enjoyable! Thank you, Sir!!!
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
Glad to see a new video from you David
so excited for this upload
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.
Your videos are Amazing
Love your videos!!!
Love this channel I've missed this
your videos are fantabulously good, sir!
Glad to see another video from you, very interesting
Glad your back .. was looking for something new.. Will keep this for my Saturday night screen cast ... enjoy all your work.
These are so awesome. Thank you so much!
I'm doing my part for the CZcams algorithm. Keep up the amazing work!
Thank you for all your videos. They are excellent.
Always look forward to your updates and new presentations, fascinating indeed🖖🏼
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.
Thank you for en-lightining us, mr Butler. :D
Notifications didn't work. This is the only channel I have them turned on for. ❤️ Quality content.
Dude found and excellent hobby for himself in retirement making these videos. Invaluable for future generations! And for me.
Nice to see new content from you.
thank you！
Thank you David
What an excellent lecture thank you
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.
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!!!
These are magnificent videos. Thank you.
Thank you for the videos
Who else has been waiting for Mr Butler to upload one of these longer videos?
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.
This is my favorite series on all of CZcams
This channel is hella value
I’m gonna hide this video from my Gran…. Those shorts! Young Man!!
My favorite channel. Butler is a master.
Thank you for contributing the hidden knowledge of the universe and enlightening us in the simplest way. Keep such vibrations up 👍
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!
Thank you sir!
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! 😊
Thank you Dr. Much appreciated
Love these videos!
Agreed thank you for the incredibly thoughtful informative content.
Thank you for the video.
Learning so many interesting things from you. Thank you.
Love this
Glad to see you again sir!
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!
Knowledge and wisdom. Great chanel.
You are a treasure 🙏🏻 waiting for my kids to grow so we'll watch together your channel
Thank you.
Amazing, informative, smart and very educational. I always look forward to your videos. Please keep them coming. I know it takes a lot of time and effort to make your videos. Thank you very much.
Thank you, sir.
Thank you sir 🙏🏼🙏🏼🙏🏼 this is our favorite CZcams channel about science on the internet. God bless you more health and happiness
Uncle Dave puts out good stuff. Top drawer. Thank you sir!
46 minutes of high quality content
These videos are legendary
I genuinely said "oh my god" out loud in excitement, then laughed at myself for my reaction 😅
Just adding a comment so that the algorithm recommends the video to more people