I started reading Sagan's The Cosmos to my now 1 1/2 year old granddaughter a couple months ago. I shall begin to have her watch the series this Summer in between our time in the backyard garden.

I used to watch this happily with my parents when I was a child. I remember this scene very vividly. I'm amazed to see it again on youtube after all these years.

@freshtoast3879

Жыл бұрын

How's life been these last 11 years?

@dragospahontu

Жыл бұрын

@@freshtoast3879 it's getting worse

@freshtoast3879

Жыл бұрын

@@dragospahontu no doubt

@nielspemberton59

4 ай бұрын

Hans Zimmers "Leave No Man Behind" from Black Hawk Down would be perfect music for this sequence. For people to benefit from relativistic space flight @ near light speeds they must go on the trip

The world REQUIRES more people like Carl Sagan. Let us all find more ways to cultivate and to nourish people like him. 🙂

@SincereSentinel

Жыл бұрын

Hear, Hear!

Carl Sagan was a genius at communication.

@michaelschramm1064

Жыл бұрын

Perhaps the greatest science popularizer of all, even possibly a level up from Isaac Asimov.

Paulo got places to BE

@elon-gatedMusk-rat

10 ай бұрын

Hilarious comment. 😂

So brilliantly explained in simple terms. Cosmos is still, today, one of the greatest popular science shows ever made.

If hell is where Cal Sagan is, that's where I want go

@estebandelafp

4 жыл бұрын

Did this guy just acted as Vatican police against a harmless joke?

@Kgio-2112

Жыл бұрын

No you dont

@johnpaulmccain4668

2 ай бұрын

Hail Sagan!

This is my favorite part of the entire series. As a kid in the early 80s when I was 6-8 years old I watched this and left it with a far greater understanding of science than of people I knew in my daily life. We didn't have the word Autistic then so I didn't know I was that but I had no idea why people did what they did but I understood this stuff.

What a legend Carl Sagan is... World needs more like him!

@That_Freedom_Guy

Жыл бұрын

Carl Sagan agrees with you! That's why he wrote books and starred in television shows, he wanted everyone to think critically as he did. It's up to us to embody the Sagan wisdom in ourselves as well as waiting for another Sagan type scientist to take Carl's old position.

I saw it when I was younger n today 2022, I'm now a data scientist for NASA. Carl influenced.

@michaelschramm1064

Жыл бұрын

That’s awesome! I was also duly inspired by Dr. Sagan-went on to read 9 or 10 of his books, then read Asimov, Wheeler, Kaufmann, Gribbin, Hawking, Calder and many more-and became a soil scientist in the employ of the USDA/NRCS for 32 years.

Can still remember watching this as a kid and being blown away

This episode got me hook on Cosmos and the speed of light.

I understand how Rick Springfield seems to never age a day from this Cosmos episode. Rick must be always travelling near the speed of light. Rick is in his mid 70's yet he looks 20 something.

"Pauulo says good bye to his little brother Vinchennnzo" I don't know why but I love listening to him say it like that haha. He almost had somewhat of a regal way of speaking

@michaelschramm1064

Жыл бұрын

I still recall getting a chuckle out of that when me and my mom watched the original airing of Cosmos. Always had to be SO precise. The best occurs when he enunciates the !Kung tribe of the Kalahari-he must have practiced in front of mirror for hours, because the proper naming requires a special “clucking” sound with the tongue and the roof of the mouth. What a hoot Carl Sagan was!

@edntz

8 ай бұрын

His voice was incredible. When he started pronouncing ancient egyptian words, i knew he had to be someone special.

italian restaurant service slows down at noon. great presentation to make it memorable. and also a bit of cultural exchange.

I was a little kid when this was on telly. I loved it, and I'm not sure why, because I hadn't really any clue what that Carl Sagan fella was going on about. But I remember I found his voice comforting, maybe because I thought he sounded a bit like Kermit the Frog at the time (though he doesn't really, but then again I am foreign). And also I liked Paolo and his magic red/blue scooter. A slice of my happy childhood suddenly in my mind again. Thank you for posting this video and giving me that.

Love Carl Sagan...RIP...

My father introduced me to this video when I was about 12 or 13 years old. I was old enough to understand what they were suggesting, but not quite old enough to stick around long enough to realize that we can't really travel at the speed of light yet. So, naturally, I went and got my scooter--motor powered. I considered replicating what I'd seen here (or attemtping to) but then decided not to, because I didn't want to age so slowly while everyone I loved aged and withered away.

Totally fascinating; everyone should watch these vids!

Traveling at the speed of light. Awesome. :D

Very fascinating, thanks!

This has honestly got to be one of the most trippiest scenes from this series. Change my mind.

Sagans best ever series!

How did his brother survive all that time on the bench? What did he eat? Where did he poop? I hope the new version of Cosmos answers these loose threads.

@flashlk

6 жыл бұрын

Obviously, younger brother Vincenzo did not stay on the bench for fifty years. While Paulo took his relativistic ride, Vincenzo went on with his life, but returned to the bench at the same time every day, waiting for Paulo to return. The time dilation effects of special relativity led to a poignant reunion.

Nice

Carl Sagan es un científico fascinante, por su trabajo (incansable) en la investigación y la divulgación científica en los campos de la astronomía, exobiologia, radioastronomia, la investigación de las ondas del sonido (el efecto dopler), el viaje en el tiempo a la velocidad de la Luz, (como en este caso del vídeo), la vida extraterrestre inteligente más allá de nuestro planeta tierra, y tantísimos otros temas muy interesantes, les envío muchos saludos desde la provincia de Buenos Aires República Argentina 🇦🇷

this just blew my mind lol

I remember watching this while in my 8th grade science class. This explained things so much.

I really enjoy the beautiful Italian sights

Only after I saw interstellar I realised how hard it would really be to experience something like that.

@shaquadradeloiserussell8659

8 ай бұрын

that is science fiction. travelling far into space will not change how fast you age. if you are 40 and it takes you 60 earth years to fly somewhere, you will still be 100 by the time you get there, and will look like it too, if you're not already dead from old age before then. If you could fly to that place in 1 minute, and be back in 1 minute, you and everyone else on earth, would still be 2 minutes older than you all were before you left.

@SiphiliSx

8 ай бұрын

​@@shaquadradeloiserussell8659if you traveled away from Earth at light speed for 1 minute, then return to Earth at light speed for the same amount of time almost 100 days would have passed on Earth in those two minutes.

@SiphiliSx

8 ай бұрын

Theoretically

@shaquadradeloiserussell8659

8 ай бұрын

@@SiphiliSx No it would not have. One Earth minute is still one Earth minute, regardless where ever you are in the universe.

Awesome! Quantum light tradectory!

Go fast, stay young.

Your second sentence is masterfully written; do not discount your own ability to spread knowledge.

That bit about light receeding is very interesting - I kind of knew about the other parts, but not about that.

@theseaotter He was a master at explaining brilliant and complicated thoughts and ideas ina way that common folks like us could understand and that's a rare gift.. hopefully there will be another like him..

Mind=blown.

❤

We hear an audible red and blue shift everyday as a sound wave. Listen to a car traveling on a road. You hear a high pitched noise as it approached, you hear an almost "exhale" lowered pitch as it passes. You have witnessed the effect Sagan is talking about. If we are in that car, our field of vision narrows due to speed relative to a "static" earth. Such a great video, thanks.

@ThyNazgul

9 жыл бұрын

Yep the Doppler effect affects light waves and sound waves :D

@ReductioAdAbsurdum

8 жыл бұрын

> If we are in that car, our field of vision narrows due to speed relative to a "static" earth. No it doesn't. The effect Carl is talking about, where things that are behind you appear in front of you, only happens at very near the speed of light. It doesn't occur at the incredibly sluggish speed of cars.

Fantastic video....Watch it!!

I suspect Sagan would have loved the news that neutrinos may go faster than the speed of light. He would not have focused on what was wrong with his earlier point of view, but what the implications of this new discovery was. He would have considered this information the best information available at that time, and that's ok.

Watched this as a senior in high school when it came out. Of course, my dad couldn’t understand it and hated watching it. My mother watched only because of Carl’s voice. Science was my thing, not theirs.

Dem retro effects. (-:

This is honestly too elite a mind

Wow

Thank you. I'm a Christian who agrees with you 100%.

Does blue and red have the same wave frequency? Or a conceptual rapresentation Is capable to possess two overlapping quantitative meanings?

@manwithouthat44 man i love his voice

Paulo should wear a helmet if he's gonna go that fast...

Don't buy oil of olay to prevent ageing. Just travel at the speed of light for half hour!! Seriously though, what a magnificent video. This boggles my mind and makes no sense but it's all true which is a mindfeck.

QUESTION! Therefore, if we do ever travel close to the speed of light and go to a plat, let's say 1000 light years away. Did we simply age of a few years in that case? which would make it possible for use to travel long distance in once lifetime? (without the help of worm holes)

Wonderful to see this again 43 years later, I think Mr. Sagan prefaced this by saying "imagine the speed of light was 60mph" or some such thing?

A mean to get to the stars 🤩

I dont want anybody to think that they would be in some kind of twilight zone when traveling close to c. To you, your watch is ticking normally, to an observer, your watch ticks very slow.

I wish I could travel back to those times, god I hate 2022

@starstheory

10 ай бұрын

Not unless we can travel at the speed of light

The Italians sure make some sick mopeds

If Paolo's Scooter got 60 miles per gallon, and he traveled the Speed of Light for just 10 minutes he would need a fuel tank that held about 2 quadrillion gallons of gas! What a great video. Mind expanding to think that Time does pass at such different rates and some brilliant minds discovered this with just pencil and paper (or chalk and blackboard) to do the requisite mathematics...

@flashkellam7395

2 жыл бұрын

Just as Carl Sagan had a “magic camera”, Paulo had a “magic motorscooter”. All to perform the “thought experiment”.

Italians sure know how to make a bike

Carl sagan is my new god

@ALackOfLife good point.

@opticmovies There was a PBS program, I think it was called "Einstein's Miracle Year" that explains the phenomenon very nicely.

@Apophisguard lol I'll keep that in mind. Thanks for the info ;)

@RotaryKnight Yes, but doesn't relativity posit that as your speed approaches the speed of light, your mass approaches infinity?

"Your NOSE is just a little closer to me than your ears."

the younger brother was basically Hachiko

Easy there Gods-speed-y-Gonzales!

@ALackOfLife Quantum Entanglement occurs when photons, electrons, or molecules, interact physically then seperated creating an odd connection. yes it DOES sound silly, but seems to work that way. When their linked, the resulting member of the pair is set by the same quantum mechanical properties (state), which is indefinite (Quantum Superposition) with such factors such as position, momentum (these two ring a bell?), spin, polarization, etc. The issue where information can't be sent... cont.

Got your weed bruv, will drop it off yesterday

Where can I get hold of the complete series of the cosmos by Carl Sagan ?

@shaquadradeloiserussell8659

8 ай бұрын

Amazon...?

Carl Sagan explains such complicated theories in such simple ways that people with almost no knowledge of physics and cosmology can easily understand what he is trying to explain.

I want that bike

to a person who is observing a ship approaching the speed of light would the ship seem as though it is slowing down as it is getting closer to light speed because time is slowing down to the ship so the observer would see this as well? Another way to put it is there is a track the ship and the people on it are travelling around this track at light speed to them the journey only takes 4 mins from point A to B but to the oberservers it takes hours so to the observers would the ships slower than..

I remember watching this as a kid. Weirded out by the ending.

@shaquadradeloiserussell8659

8 ай бұрын

No it wouldn't. 'Time' does not have one definition. It is all relative to each individual object, and yet it is also relative to all objects at once. Its all down to perspective.

most common example is astronauts and space satellites. Astronauts in their average career will have travelled fowards in time by 20 hours... also the time on satellites have to be constantly adjusted to match a master clock on the earth. The time onboard a satellite creeps ahead into the future because of the speed they travel at all the time.. this is everyday stuff

Do you get tunnel vision because the light you would ordinarily see reflected off of the objects outside of the tunnel doesn't have time to reach you?

@BlockisticStudios It meant that you experience time at a slower rate than an observer as you travel closer to the speed of light.

@ALackOfLife Comes into the fact that observation causes the entanglement process to collapse or sever, which forces the particles to take on definite states. Ergo, you can't send information through quantum entanglement. As a side note on wormholes, you should try looking up negative mass or tachyonic fields.

We need more people like Sagan and less dirtbag politicians and middle eastern dictators. In 1000 years we will either by far more advanced then we could ever dream, or we will be consigned to dwell on our weaknesses rather then our strengths.

This shit makes me cry every time

@UltimaXG2 Oh yeah I realise that.. but it's still pretty amazing!

@justinjiang, no. according to Einsten's theories, time is stretched out for the fast-traveller. That would make his clock running late. Anything else unclear? I've heard that the clocks onboard human-built satellites in Earth's orbit need to be readjusted continually because their shift in space-time. I also heard about a cosmonaut being in Earth's orbit for such a long time that his time had shifted a few milliseconds (comparing to ours).

I have a practically overwhelming amount of memories of this ORIGINAL version of COSMOS. Nothing but respect though for the Neil DeGrasse Tyson version.😎👍🏻

@zakalwe30 I know what you mean though, Im am not experienced in these sort of things, I only have basic understanding of sorts. people say mass is increased as you reach closer to speed of light, but from what I understand, people confuse mass with momentum, or energy

Every time you change direktion you will have to use power. You will have to deaccerate and use power to go back to the point of the beginning. Travelling near the speed of light - where should that power come from?

@BranZyme there was a miscalculation in the test. also neutrinos are a subatomic particle of an atom.

Sono Paolo. Questa è Vinci, Italia. Carl mi ha mentito. Non sapevo che i miei amici e la mia famiglia sarebbero morti di vecchiaia.

If you were to travel at exactly light speed, time actually *would* stop for you. Getting to the speed of light, however, would require more energy than exists in the universe.

Crazy Italian scooters

This scene gave me nightmares when I was 10.

tired light..The AMATIMAS BLINK..

@justinjiang, the watch doesn't slow down. An outside observer who looked at the traveller's watch would see that the watch was ticking slower than usual, while the traveller wouldn't see this slow-down. He would actually see the surrounding world a tad faster!

i dont get it sun light arrive at earth at 8 min's (approx) if i go the same will my freinds be old?

Filming location ????????

@Galentw that's what I still cannot understand. Traveling at the speed of light to an observer would actually be considered a very slow way to travel if time for them goes by faster than for those traveling at near light speed.

@BlockisticStudios I'm no expert but i do know that light particles are massless, maybe that has something to do with it.

You'd see either a black or white TV screen, since its a recording of light waves and refections, - Not real life. All colors would blend, to the human eye watching the TV. No light waves would accually be distorted.

That's some special Vespa right there

If time slows down for the pilot of a nearly lightspeed vehicle, will an observer clock the ship traveling slower or faster than the pilot would clock the ship traveling? And how much is the difference? And does this mean that we could travel a lightyear in less than a year from our perspective?

@lawrencedoliveiro9104

11 ай бұрын

Each one sees the other’s clock slows down, and each one also sees the other contract in the direction of motion. Pilot records less time travelling from point A to point B, because an observer stationary relative to those points sees the pilot’s clock run slow. But the pilot sees that it is because the points are closer together.

@JohnSmith-td7hd

11 ай бұрын

@@lawrencedoliveiro9104 I just realized that the pilot would perceive his or her ship as traveling faster than the speed of light. I wonder what that looks like.

@lawrencedoliveiro9104

11 ай бұрын

@@JohnSmith-td7hd No they wouldn’t.

@JohnSmith-td7hd

11 ай бұрын

@@lawrencedoliveiro9104 Thanks for clearing that up.

@velidagovic But with the speed of light, isn't time for you actually slower? Like, time affects your chemical makeup more slowly or... Sigh.

I think there's a bit of an inconsistency here. Of you take a drive around your town close to the speed of light, it's not that you will return decades later, it's that your journey will be near instantaneous. Light can travel around the Earth 7 times in 1 second, thus in order for your trip to take a single decade in Earth time, you would have to drive around the equator over 2 billion times. Just that for you, it would take progressively less time, the closer you are to the speed of light.

@lncomus

6 күн бұрын

Not to mention, that the Earth would be destroyed

@btkw But wouldn't that make light travel slower than it actually does? Wait. Does this only apply to matter? Still. Hrm.