Mars before Viking - Carl Sagan's 1977 Christmas Lectures 4/6

[@joeguerra8435]

I’m watching the Mars Livestream on another KZbin video. It really places a premium on the Mars knowledge we were only discovering in the 1970s that Carl Sagan was discussing. Professor Carl Sagan - a truly remarkable and inspiring voice.

[@paxromana1982]

What an amazing human being this man was. Just timeless magnificence ❤

[@GaliSinatra]

I would have loved being in the room with the great Carl Sagan then. Genius.

[@Morning-doom]

When I was growing up Carl Sagan was a local phenomenon in upstate NY. He was friends with my college astronomy professor.He would just show up anywhere, even on out local news station. He was friends with the weatherman and he would just walk in and surprise everyone. I was privileged to have coffee with him. What a wonderful human being.He was great.

[@GaliSinatra]

@@Morning-doom Very cool! What great memories.

[@GaliSinatra]

@@Morning-doom Which county in upstate New York? I'm up there.

[@Morning-doom]

@@GaliSinatra Rochester NY🤗

[@GaliSinatra]

@@Morning-doom oh that's waaaay up

[@Mesa-t6i]

What a series, I’m actually looking forward each day to the next lecture! I wonder if any noteworthy scientists working today were in the audience as children ?

[@logoslive]

That’s exactly what I was thinking.

[@davidbrennan660]

He was a genius, (billons and billons of respect to his memory). It took ten years to repair the damage Carl caused to the RI during this series of lecture .

[@hasato-e1]

Kids in the room looked pretty interested in the subject. Is there is a special strategy to ploy their attention or it is just a charisma of Sagan's ingenious mind?

[@mongmanmarkyt2897]

Sagan is touted as one of the best teachers of his time due to how he was able to captivate the minds of many and making things a lot simpler to understand. One of my favorite books is Pale Blue Dot

[@hasato-e1]

@@mongmanmarkyt2897 Definitely! Also had had this one which i generously donated to library about 2 years ago.

[@Ihab.A]

Today kids are zombies of their cell phones and social networking.

[@redrider1123]

no cellphones in site, and a skilled scientist and natural aurator to stimulate their imaginations.

[@ralphjenkins1507]

An incredible scientist ❤

[@theextragalactic1]

Thanks so much for uploading these Ri. Love it. ❤

[@stevedrake6529]

How do you keep a room full of kids quiet for an hour??? Just have Carl Sagan start talking!

[@Bultish]

What a guy, stoic ♥️

[@pedrosmith4529]

Lucky people. I was three back then.

[@smadaf]

I'm surprised that he didn't cite the atmosphere as another reason why craters are rarer on Earth: meteors that burn up before they hit the ground don't leave craters. In addition to obliteration of craters by erosion, there's also hiding of milder ones by such things as water and plants and soil.

[@joetucci1134]

How many kids in this audience became scientists ?

[@jsalsman]

Turtlenecks, turtlenecks as far as the eye can see!

[@aberdeenkiko]

Great traditional lecture at a symposium. Even though; the content of the lecture itself, had lots of inconsistencies. Moreover, the fact that towards the end of that same lecture, Mr. Carl S., first said that: planet Marte only had 0.01atm, of atmospheric pressure. And then, proceeded to say that, there is still strong winds at the surface of planet Marte. Something that is only possible; if planet Marte, still has, at least 0.1atm; or 10% of current planet Terra, surface atmospheric pressure. Plus, that global anual wind pattern, of planet Marte, showed at 54:05; of that same video... Is upside down. And indeed, its similar to its counterpart, from planet. Showing that: it was the Africans, who colonized Europe; around 400 years ago. And not the other way around.

[@JoesGuitarASMR]

These are so good. It’s such a shame there are adverts literally every 5 minutes throughout, they make it unwatchable

[@noneofyourbizness]

43:00 capitalism has carefully managed our awareness of, the then potential for, anthropogenic climate change.

[@davidlloyd1526]

Not really. It was known about in the 50s. In the 80s they told us London would be under 20m of water by today, for example.

[@GlutenEruption]

⁠@@davidlloyd1526no, they didn't. The most extreme estimates in the 70's and 80's - before climate scientists had a firm understanding of glacial melt dynamics - predicted between 1.5-6.5m, and that was by 2100 not 2024. Not a single peer reviewed paper in any of the literature estimated anywhere even remotely close to the ~50m of sea level rise necessary to put London under 20m of water by the 2020's. There's not even a single paper that comes anywhere close to just 20m of sea level rise *period* by the 2020's.

[@spindoctor6385]

​​@@GlutenEruption Wow, you read every peer reviewed paper. Good job. Or you are just a liar. Guess which one is more likely.

[@spindoctor6385]

Wow Capitalism is a conscious entity. Who knew? Such an ignorant comment.

[@johanneswerner1140]

Shell (yes, the oil company) published a study about this in the 70s. Everything after Hasselmanns 70s (74? dunno) papers looking at simple energy balance models has just been refinement. I'm not saying it wasn't important, just that simple is not necessarily bad or wrong...