Things You Thought You Knew with Neil deGrasse Tyson

Mass? Weight? Density? There are some things you thought you knew and on this episode of StarTalk Radio, Neil deGrasse Tyson and comic co-host Chuck Nice are here to investigate what we know and what we thought we knew.
We start with mass, weight, and density. If you’re trying to get in shape you need to lose weight, right? Neil deGrasse Tyson says wrong. Neil tells us why when you want to get in shape, you need to lose mass. You’ll learn why a weight-loss book written by a physicist would just be one sentence. We explore the difference between mass and weight and why weight is all about forces. Find out why heavy cream is lighter than skim milk. We explore how the hull of a ship keeps the ship buoyant. All that, plus, Neil explains why, if you want to lose weight quickly, just head to the Moon and hop on a scale.
Then, we move on to another seemingly simple question: Why does ice float? Neil explains why peculiar things happen to water when it changes state. We explore what happens when water freezes. Chuck gives a demonstration of why you usually see 10% of ice above water. You’ll learn why the arctic ice sheets float on the water. And, why the ice we need to worry about is the ice on land and the “runoff.” We discuss the power of freezing ice (which leads to bursting pipes). Find out more about the density of water. What if bodies of water froze from the bottom up? Neil tells us how a certain property of water protects aquatic life over the winter.
Lastly, we turn our attention to space. How much do you weigh in space? Neil tells us why we should be thinking about how much mass something contains instead of how much something weighs. You’ll learn why your weight in water is basically zero. Why are astronauts weightless in space? Neil explains how Sir Isaac Newton discovered orbits. Find out why most energy from a rocket launch is not used to get the rocket into space. All that, plus, we explore the science of Ad Astra, The Expanse, and 2001: A Space Odyssey.
Thanks to our Patrons Christopher Sukhanenya, Dmitry Pugachevich, Eugenio Barrera, Dakota Clifford, Nick Mancusi, Nicholas Musial, Sebastian Roser, Bryan J. Jacop, Robert Frasco, and Obumneme Ozoh for supporting us this week.
NOTE: StarTalk+ Patrons can watch or listen to this entire episode commercial-free.
About the prints that flank Neil in this video:
"Black Swan” & "White Swan" limited edition serigraph prints by Coast Salish artist Jane Kwatleematt Marston. For more information about this artist and her work, visit Inuit Gallery of Vancouver. inuit.com/
Support us on Patreon: / startalkradio
FOLLOW or SUBSCRIBE to StarTalk:
KZbin: kzbin.info...
Twitter: / startalkradio
Facebook: / startalk
Instagram: / startalk
About StarTalk:
Science meets pop culture on StarTalk! Astrophysicist & Hayden Planetarium director Neil deGrasse Tyson, his comic co-hosts, guest celebrities & scientists discuss astronomy, physics, and everything else about life in the universe. Keep Looking Up!
#StarTalk #NeildeGrasseTyson

[@bryanstrange3176]

Can we just appreciate the fact that we have the honor of being alive in the same life time as this man?

[@shaunlastname391]

Bit much

[@mistral-unizion-music]

Totally. He is very intelligent and also very good to vulgarise.

[@samakshnamdev3723]

Oh yessss

[@mr.crafty5303]

He’s only special at this moment. So at any other time there would be people thinking the same thing about another “special” person 🤔

[@shaunlastname391]

@@mr.crafty5303 heisenberg uncertainty principle

[@sparrowthesissy2186]

Neil is literally never going to forgive that one barista who forgot his whipped cream that one time. That anonymous lad will be immortalized in physics lectures for the rest of human history.

[@reasonerenlightened2456]

If Earth rotates once every 88 minutes then how flat the earth would become? +++ How to make a planet spin faster? If SpaceX tests all its engines in a direction that accelerates Earth then the Starship would be easier to launch in space.

[@denisenj7648]

The poor guy wasn't lying. He probably just forgot and figured it must have sunk.

[@BrixyBrixhamite]

if he doesn't, then I won't forgive him for the error he made (see my comment above).

[@mf--]

@@reasonerenlightened2456 If all the rockets on Earth were set off to accelerate Earth's rotation, the day would not noticeably change. The Earth is too massive. Meteorite impacts would probably be required to significantly affect the Earth's rotation.

[@reasonerenlightened2456]

@@mf-- Are you saying the earth is so massive that the humans can have no effect on its climate.

[@williamwalbridge3895]

I love how excited Chuck gets when he suddenly understands the concepts Neil is teaching him. The thrill of discovery and understanding.

[@qa4057]

Has to be an act since this is all rehearsed right?

[@james-2374]

If we had more teachers like Mr. Degrasi so much science would be better understood

[@james-2374]

No i beleive this man truely wants to teach the masses which definatley informs and with knowledge we evolve and progress can continue in our human existence

[@the_hekate4668]

I'm confused now So if the water expanded by 0% It would just not float? Go in the bottom of the sea Or just stay right below Or if it expanded by let's say 70% Then would 30% of it still be underwater?

[@LanceWillMakeIt]

@@the_hekate4668 if it expanded 0%, it would be the same density, so YES it would just not float if it expanded 70%, then YES it WOULD be 30% in the water :)

[@schlossgoldftw]

I have seen a lot of KZbin shots with him and just now found this channel by accident and I am so glad I did. This man is a genius and I can listen to him for hours.

[@carolinerothenberg3982]

I just love learning from him! I never thought I could understand any sort of physics until I started listening to him. He actually makes physics easier to understand, fun, and even comical at times. Thank you, Neil!!! ❤😊

[@undrcoverlouky]

GO SEE NEIL DEGRASSE TYSON GIVE A LIVE LECTURE!!!! I saw him two weeks ago and it was amazing. He asked the audience a question. I yelled out an answer. He looked right at me and said No. My heart fluttered a bit. He spoke to ME! I was so excited, that I forgot the question he asked in the first place. HE SPOKE TO ME!

[@princevegeta864]

Erm OK...

[@MsDsn420]

Lol, That is pretty cool, sorry you got the answer wrong but....

[@calabrais]

I love Dr. Tyson, but I adore Chuck. This is a perfect 50/50 partnership. Thanks for the great content!!

[@caseypearce8722]

My favorite has to be Neil and Theo

[@tadonplane8265]

Learning can be so much fun! Thanks Neil and Chuck!

[@bobfrankenberger2366]

I want to smoke that too!

[@mihaelaalbert3444]

@@bobfrankenberger2366 🤣

[@mihaelaalbert3444]

🤣

[@charliebell5073]

"Why would you want soap that floats?" was a fun line, but it shows how young Neil DeGrasse Tyson is. When people regularly took baths rather than showers, they'd often drop bars of soap in the sudsy water - and have to find them by feel. Fun episode in a FINE series. Thank you.

[@robertmacfarlane7723]

Funny the genious couldn't remember that.... Or figure it out.

[@GraemePayne1967Marine]

Regarding the floating bars of soap - my mother would never use it. The reason is she grew up in England in the early 1900's, and there and then the soap that floated was a rather harsh soap used for scrubbing floors and other tough cleaning tasks.

[@ParadiseDB7]

​@@robertmacfarlane7723 what an arrogant person

[@discounting]

Holy crap! I grew up on Ivory & both silly ads in the 60's, still reading book pr day; Have long understand quantum coherence; Never a hint of a clue of why either Ivory selling point was good. Here you solved a 50-year dilemma. #HatsOff #gobsmacked #factoids #ThatDamnedIvorySoap 😄😁

[@JumperXxXCables]

Soap that floats can be found in water easier plus you can't step on it and slip.

[@melvinmuddfuckle4263]

I could listen to this wise man all day long! Wish I had him as a teacher back when I was on school. Don't understand how anyone couldn't find this man wise, smart, and interesting! Whenever he's on tv, he's a must watch!

[@nicholasgardiner9601]

@Melvin Muddfuckle Similarly he is awesome as an author where he chooses the words and assembles the sentences and unfolds the ideas.

[@Sh0-tyme]

We could learn from him as well as other established scientists/physicist but the Best part about Mr. Tyson is he has a sense of humor.

[@JohnWaaland]

@@HopDavid And you don't want to be entertained ever ⁉️🤔

[@JohnWaaland]

@@HopDavid Hi. And you got a little sloppy with the spelling of lectures. Anyhew, maybe that was the fault of something else. What I was getting at there was is it ok in your guesstimation to be entertained to one degree or other while learning complex subject matter ⁉️

[@jasonbenoit1888]

​@@HopDavid great to see I'm not the only one who can see Tyson is just the new Bill Nye, and will be used politically more and more to exploit the fallacy of appeal to authority.

[@nikhilsomvanshi9960]

When you've been a Tyson fan for long, you know you've heard so many of his stories over and over and over again. PS: Not complaining

[@1990tcyta]

LoL, when you realize this is a reupload, you know you've been here for quite a while I remember the Scotch part for sure

[@Sacrengard]

@@1990tcyta I am sure I heard the orbit thing before too

[@AsobiMedio]

I'm pretty sure he unconsciously memorizes these examples of natural laws and reuses them without realizing it. I've noticed this after watching a lot of his interviews over the last 20 years. Though I suppose consistency is a definite positive when it comes to educating people through analogies.

[@qwok]

Hes not as bad as kaku

[@tcluchito]

I am surprised chuck doesn’t say something like hey man we know that story already man

[@johnkaupakamasua5540]

Neil is the real deal...he has a passion that is only matched by his incredible talent

[@SlyNine]

He's good at making people think he's smarter than he is.

[@Sara17783]

@@SlyNineI bet he knows a heck of a lot more than you. An IQ of 126 is nothing to sneeze at considering the average IQ for a human is 85 - 115

[@user-di1se8rl1o]

Neil and Chuck you are wonderful human beings! I love how you incorporate laughter at the right moments. Thank you for keeping the explanations direct, simple and to the point. Thank you for sharing in such an enjoyable and easy to understand way. I appreciate all the reading and research you must do behind the scenes. I love how you always find a way to make your guests laugh!! I love Startalk!!!!

[@theduder2617]

I absolutely love how Neil patiently waits and allows Chuck to conduct his experiment so that he can duplicate the results of the scientific claim on his own. That first hand experience in my opinion, is extremely powerful in creating permanent storage of knowledge gained as well as generating a strong interest and desire to learn even more.

[@samualwilliamson1187]

Uh,...yes indeeeed...

[@fernandomoraes8464]

Chuck should not be in the show. He is simply completely unprepared to discuss anything with Neil Tyson.

[@JohnWaaland]

@@fernandomoraes8464 Kinda harsh ya think ⁉️🤔 He brings more funny 🤣 to the topics ‼️

[@OfficialBurrow]

@@fernandomoraes8464 That's the point.

[@Johnboy33545]

@@fernandomoraes8464: You are way off. Chuck is playing a role for the audience. It's sad you can't see it.

[@steps0x029a]

Had my teachers explained physics like this to me, I'd have listened more and maybe even studied it later on - fascinating! Thank you so much!

[@ericparrish1515]

If gravity doesn't affect you I guess it doesn't matter.

[@georgesheffield1580]

Your teacher probably didn't know what they were talking about but just following the flawed curriculum dictated to them .

[@steps0x029a]

@@georgesheffield1580 Well, I could agree with you, but then we'd both be wrong 🤷🏻‍♂️ There's a *slight* difference between "presented in an boring way" and "dictated curriculum".

[@amymaki2918]

It's reassuring that concepts that I would never otherwise understand from the way they were taught in conventional classrooms in my day can be explained in terms that are comprehensible and humorous when they are discussed by Neil and Chuck. Thank you, guys!

[@fstimellom8882]

Now thats what i call a great comunicator of science. Even i understood that

[@lelandshennett]

I grew up on an island in Alaska, I’ve spent my life on the water. The section about boats blew my mind

[@matsstb180]

👉

[@affy2255]

Chuck is the reason I got over my crippling depression.

[@Tom-dt4ic]

Love me my Chuck!

[@scottallencarr]

Us/The Chuck fans get this. Nice!!!

[@grahamwillis585]

Loved that why does ice float explanation , wish we had more teachers in school like Neil, seems like such a gentleman and happy to teach.

[@patriciavanfossen4162]

I love the explainers. i play them over and over. they are informative and with all the good time had in the company of you too i forget the facts and just start having a good time. so i listened to this one again this morning. along with the moon episode where Chuck gave the very best presentation of the deep emotional side to a planet and moon drifting apart. i also listen and relisten to many others and have wondered if you have them in some sort of collection. I'm sure I've missed many. Thank you so much for not giving up on educating us. I'm sure a sense of futility could easily creep in . I wish you and chuck would do a cameo or more of an appearance at an earth shot event. it would be great press for everyone involved. Keep up the good work. you are Gentlemen and Scholars.

[@mattevans-koch9353]

Now that was a fun and educational afternoon interlude. Thank you gentlemen.

[@reasonerenlightened2456]

If Earth rotates once every 88 minutes then how flat the earth would become? +++ If SpaceX tests all its engines in a direction that accelerates Earth then the Starship would be easier to launch in space.

[@WoloW1zard-]

@@reasonerenlightened2456 effect of engines on earth acceleration is negligible even if they were all in the same direction

[@reasonerenlightened2456]

@@WoloW1zard- Superman managed to make the world spin so fast that it went back in time.

[@WoloW1zard-]

@@reasonerenlightened2456 good to know

[@jamesritter4813]

I literally learned more here on KZbin then 12 years of school lol

[@theitineranthistorian2024]

Ice spheres and scotch, I learn so much watching your programs. Seriously, another great show.

[@sunshinesquares]

I saw NDT at the Straz in Tampa this year. The entire auditorium was so happy to see him we gave him a standing ovation when he came out on stage. It was like finally seeing an old friend after a long time.

[@vintxgemedusa]

The comedy of chuck while learning makes this a true experience

[@truesimplicity]

Awesome team... Chucks genuine appreciation and enthusiasm for the pearls if wisdom imparted by Neill are priceless. Thanks Guys

[@ashtonvaughncharles6900]

Hey, look. It's everyone's favorite time of day! 😁

[@iwill6002]

Not everyone, just the cool kids 😎

[@KilonovaF]

WOOOOO! 🤟 gotta love science 🌟

[@RichyJFilms]

uranus time :D

[@HaddyD]

Hmmmm... 4:20?

[@nlg1502]

L

[@numbr17]

Love this video. These guys are awesome. Neil has a brilliant mind, and they talk about super fascinating topics. Thanks so much for sharing these moments with us!!

[@roysweetland8162]

It's always so cool to be wise and smart, never cool to be a fool, unless you're just playing the fool to catch the wise, thank you both Neil and Chuck for continuing to make learning and seemingly complicated scientific concepts so much fun to explore and understand, you both are such a credit to humanity.

[@theperfectbotsteve4916]

but you must remember that even the wisest can be fooled under the right circumstances so it may not be cool to be a fool but it still can be a tool for people who'll take the time to school there brains and fuel there mind to overule that that fools

[@owenpichot7293]

It's been a few years since i started following neil on youtube and his various books, I could'nt possibly count the number of times i heard that coffee story with the cream 😂 Keep bringing science to everyday people you rule 😉

[@DominantalleleYT]

This mans needs to start learning some new sciences so he can grow the communities knowledge instead of rehearsing the abcs to nerds.

[@jonathanclarke4529]

Comma needed here ;)

[@killy.]

@@DominantalleleYT do math teachers need to inform themselves of social studies instead of teaching different people the same math curriculum? How literate are YOU in the sciences?

[@DominantalleleYT]

@@killy. What you said has nothing to do with expanding your knowledge of the subject you teach. You literally referred to a different subject. Just because they are both subjects doesn't mean the objective of both correlate. Simple logic. If a math teacher can only teach his students the same math and tells them to be curious yet doesn't expand his knowledge, he is deserving of judgment or criticism. You teach the unknown when you want to give power. You teach the common when you are weak or fear others having the same knowledge.

[@ActionJackson669]

Yeah, he has a few stories that get recycled quite a bit, but it's good for the people who haven't watched all the other episodes 😂😂😂 also his example of different dimensions, using the 2D sheet of paper and dropping the 3D sphere through it, I've heard that one between 3-5 times 😅😅😅 but it's still a helpful explanation for those who haven't heard it before, it helps paint a good picture of how it works

[@Omenvreer]

so glad you mentioned The Expanse! The science that show considers for production of an episode is staggering, even down to how they have to pour water into a glass off-center in the spinning facility on Ceres so the water spirals into the glass correctly.

[@aimankhan5377]

I was going to say! Would love to hear a detailed discussion of the science in The Expanse!

[@blakbro2k]

Such a great show. Although, later seasons.....

[@angelbinet2407]

Just subscribed to star talk. I’ve learned so much just listening to these videos while I work the past few days. Fell in love with learning again.

[@BradleyLayton]

Nice job putting these concepts into colloquial terms and tickling the humor circuits. New knowledge is contingent upon prior knowledge as well as a connection to our emotions. Keep up the great work!

[@mayagreenwald293]

Thank you Dr. Tyson for everything you do for us! This is a fun way for our kids to learn about the magic of science. Love your work.

[@GarageWoodworks]

17:10 Would have been the perfect opportunity to discuss why ice takes up more volume than the liquid state: crystal packing/hydrogen bonding etc. The question "why does ice float?" answered with "ice is less dense than water - takes up more volume" only begs the question : "why is ice less dense than water - take up more volume?" A perfect opportunity to discuss hydrogen bonding, crystal packing and maybe even a great place to discuss entropy.

[@rdspam]

10/10/20 Star Talk all about water and ice. Still not that level of detail, but an interesting episode.

[@erics320]

Yeah, i was hoping to get the answer to why water expands close to freezing. As far as i know its the only liquid doing that. Without that, life never would have evolved on this planet. I dont believe in creation, but this looks like intelligent design to me.

[@Earth4Mars]

These are particularly aimed at the average person who probably have a limited if not at all, knowledge of these concepts. However, the podcast dives deeper in the answers that sometimes at the frontier of today's knowledge

[@silvermane5695]

That would be a good question for a chemical engineer to explain ;-).

[@GarageWoodworks]

@@silvermane5695 No, just a good chemist or anyone that has taken general chemistry in college.

[@miltonezzell4331]

Neil,I'm sure you get this all the time. I have watched you for years and I say thank you for educating me as well as many other people. I think you are a good human being and you definitely deserve respect. You help make science fun and more interesting than it already is for most of us who already have interest.

[@ParadiseDB7]

​@@HopDavid Lil buddy is upset Niel didn't acknowledge him in Twitter 🥺

[@M9Vendetta]

@@HopDavidget off his nuts.

[@lotushead_music]

I listen to Neil when I can't sleep which is often. I never get bored of hearing him explain how life works

[@tyrellblaylock7810]

Me toooo!!! 😮😂😊😊

[@thenullhypothesis6179]

I love Chuck's bubbly persona. He helps me feel more excited about what is admittedly, probably very dry and boring subject matter.

[@ndowroccus4168]

Take note…chuck is a master of listening and responding accordingly. For everyone that has issues communicating in social situations. Becoming easily amazed, from someone explaining a story or concept helps becoming a great listener.

[@keithcollymore1]

Neil you are a true genius you make difficult things sounds so easy and Acceptable I wish you were my teacher I would have been the genius too

[@handyhippie6548]

ok, i just found this channel, and it only took 5 minutes of this vid to get me to sub the channel. knowledge, humor, and personality. these two have it all! loving the interaction!

[@lazyguitarist2691]

i love how understandable(I hope my term is correct coz english is not my first language) these guys' explanation is.they explain in an easy way and funny at times.thanks!

[@theduder2617]

This was a very good compilation of segments indeed.

[@mekongdon]

Chuck is my favourite co host, please only have him on.

[@theDandelionWay44]

I loved the podcast. You gents are top notch funny, informative and authentic. Entertained and educated. And the topic just makes me appreciate how wondrous is it that life exists in such abundance on their amazing planet. Miracles of creation.

[@theDane70]

I sincerely find myself so lucky to be alive in a time when I get to witness such a genius just explaining his deep understanding of things, it would be like being able to hear Einstein, Da Vinci and Newton’s thoughts and understanding and visions of science. I’m 53 and have been binge reading and now watching videos about science. And no my learning series doesn’t end... Neil deGrass Tyson is such a great example for the passion of learning and understanding.

[@jeanine219]

Hi Neil and Chuck! I just love you guys. "Chucked" full of such great knowledge, information and humor. We literally wish to "Neil" down to you in gratitude, after every episode.

[@chino8646]

Been listening from ages. Love the chemistry between them, makes for amazing episodes every damn time!!! Poor uncle Eddy😂😂😂

[@ilijaristovski9484]

Thanks for this amazing videos!

[@palmarolavlklingholm9684]

I love how you are able to simplify things. To explain things in a way that anyone can understand. You don't use all that technical mumbojumbo that only scientists understand. You are an actual cornucopia(or should I say encyclopedia?) of knowledge, and still you speak like an ordinary person. You sir have a rare gift for teaching. So many people sit on enormous amounts of knowledge, and still are incapable to teach it. Not you though. You make it easy to understand. And Chuck although sort of the comedic part. You always seem to ask the right questions, or make a comment that helps clarify things even further. you play the role of the uneducated guy here, but you obviously understands much more than you pretend to. Your comments and questions show that. You are both doing a great job.

[@light-master]

I need more Neil and Chuck in my life.

[@bentbilliard]

The most important fact I got from this whole thing is that Neil confirmed that Santa Clause is real and lives on the north pole.

[@yardman3427]

What type of weed your smoking...

[@bentbilliard]

@@yardman3427 None. He says it during the video.

[@hydrolito]

Santa Clause was name of a movie and character's name was Santa Claus while clause was part of a contract in the movie.

[@CthulhuInc]

he means sanity clause

[@nelsonbrum8496]

Sandy Claws...

[@JazTrance]

Incredible how much I learn every time I listen to him

[@stevenfetterly7505]

Awesome new KZbin channel!!!! Thank you

[@bortiz11]

My kid and I talked about some of this recently. This clarifies a bit and explains more about water/ice displacement.

[@leondetailing2415]

No one cares

[@MaryAnnNytowl]

@@leondetailing2415 funny how everyone else here can just leave a like and move on, but you? Nope, you have to leave a rude, negative comment (that isn't even remotely accurate, BTW), instead. Bet you're proud of yourself for that. 🙄

[@MaryAnnNytowl]

I'm glad you can now use this to help explain it even better to your kid! That's one of the really great things with NDT, he's really good at communicating science!

[@donsayers4418]

You gentlemen are alot of fun to learn from even at my advanced age of 62. Please Keep it up we /I always enjoy it. Thanks guys.

[@sherylbegby]

I'm really happy Chuck is on the show. Please tell him.

[@modestenare9518]

Chuck is so down to heath. wonderful quality for anyone interested in gaining knowledge from another person.

[@andromeda7954]

Everytime I have a question, neil has answers.

[@reasonerenlightened2456]

How to make a planet spin faster?

[@nothandsomecody7469]

This was really interesting. I loved it.

[@arielcabalin2746]

Amazing and very enjoyable video !

[@darinlucido9171]

You guys are awesome. Never have I been interested in learning soo much. Thank you.

[@ryanlandriault9562]

I like how chuck acts surprised when Neil tells him facts that he has allready told him multiple times. Neil gets repetitive but you know it forces me to watch it and then it gets stuck into my memory easier so I’m not complaining

[@zack_120]

That is because he is the host and as such he is responsible for ignighting the audience.

[@jecette2807]

Love Chuck's dedication wearing the startalk tee shirt for the podcast!

[@blacksonne19]

Neil's enthusiasm towards knowledge an passing that knowledge to others is unrivaled.

[@jeffreyallen2778]

I have never had orbit explained so thoroughly. 5 miles per second new information for this guy. Thanks for the content. I am really enjoying this.

[@LucidCreature]

5:20 the only answer I got right from a Neil question. So proud of myself

[@HughJass-jv2lt]

😆😆

[@gwenmarcus3712]

You two are a great team! You are foils for each other and create a casual atmosphere in which I can relax and have fun while reviewing concepts I haven't consciously thought about in years. Fun and educational.

[@antialluvion5118]

I love this episode. I love the spot check on transparency concepts. It also made me consider the stories about the Viking stone that let them see where they were going on cloudy days... I can't remember now but I guess maybe it could have done something with a wavelength that could go through the clouds and converted it to something that was in the visible spectrum maybe? I don't know if that's possible but that made me think about it

[@DeCamJ]

thank u both so much for the knowledge and laughs!

[@sueware8377]

I LOVE this guy...I never knew physics could be so much fun and that the human brain could store this quantity of such "cool stuff" too. I have learned SO much from listening to him and this series is great. Thanks, guys....you both are are so much fun to watch and I learn a lot from both of you.

[@CrisJunkie]

I saw the title and was like, "Didn't they have a separate episode about why ice floats?" Still watched anyway. LOL

[@treyrandolph4720]

Yeah they even just pulled the video from it, I realised that when chuck started talking about the ice sphere in scotch

[@valentinrafael9201]

He talked at Joe Rogan about it too

[@MaryAnnNytowl]

@@valentinrafael9201 lol, talked "at" him! For Rogan being an idiot that is a covid-denier, and now loves ivermectin (the antiparasitic!), that's probably all NDT could manage, talking AT him.

[@briangarrod8664]

AMAZING This stuff should be on kids TV in the UK not hidden on Youyube Great job guys

[@ArtDigitalMediaTV]

Sitting down to a conversation with these two would be so fun! And I'm glad they brought up the topic of water and ice. Yes, life is only possible because of this 'feature' of water. And maybe they don't want to get too technical, but, it would have been nice to explain why ice expands when it freezes. It's the hydrogen bonding between molecules that makes it form a lattice. And, as an example, a lattice of metal pipes is less dense than a pile of metal pipes, it's the same concept. The shape of the water molecule + hydrogen bonding forces it into a lattice since the molecules interact more strongly at lower temperatures. And maybe the concept of hydrogen bonds is too complicated for a short segment, but, it's a topic that always fascinated me. It's not a full bond. Far from the strongest bond. And yet, it essentially makes life possible. The life-sustaining properties of water, and also our very own proteins and DNA are stabilized by hydrogen bonds.

[@kellychuba]

I think they might have blazed. :)

[@babymanC-137]

I think you blazed

[@Boromir_vlogs]

If this is how we learnt physics and chemistry back in primary school then later high-school, it would've been a lot easier to understand, follow and use that information.

[@snotrryn]

I'm currently reading Neil's book astrophysics for people in a hurry and I remember him talking about the coffee shop story in it and it made me laugh in class reading it.

[@Orion225]

Yeah he probably mentioned this many of his interviews.

[@kt420ish]

That's a good book. You should check out "Letters From an Astrophysicist" after you finish that

[@snotrryn]

@@kt420ish sure thing, after all I do find any kind of science related thing interesting!

[@kt420ish]

@@snotrryn very cool. The book is basically an amazing "cosmic gumbo" where he fields all sorts of questions about a lot of different topics. Fun stuff to learn in that book! I promise you won't be disappointed

[@snotrryn]

@@kt420ish Oh I already love it so far! I'm so glad my older sister passed this book down to me and my 8th grade science teacher would always rave about Neil (she was an awesome teacher) if it weren't for her and my sister I would've never known and appreciate science and surrounding as much as I do now!

[@bryanreed1556]

Floating soap is a selling point if you are going to be taking a bath in a lake or river. Camping for example. I learned that lesson as a kid taking a bath in lake Shasta, the soap slipped out of my hand and I never seen it again. The next time my mother gave me a bar if ivory soap and it was the coolest thing ever even when it slipped I never lost it again.

[@Jane-nc2fr]

I never saw it again, not never seen it again.

[@JessieRayPosey122680]

I can see why you two guys get along so well! I love the chemistry between you two! No BS but I do believe we would get along. I know this message will never be read but, I can hope.

[@--_-_-_-_-_-_-_-_]

5:20 , Neil: who's the guy who splits wood sections into firewood? Me: Captain America !

[@russellszabadosaka5-pindin849]

Fun fact: the planet Saturn is less dense than water. If there were a body of water large enough, Saturn would float & bob on top of the water. Because of Saturn’s low density, its gravity is close to that of Earth, despite its immense size.

[@reasonerenlightened2456]

Saturn does not have gold and diamonds? How to make a planet spin faster?

[@tah-rehar-1802]

Here is a fun fact saturn is not sold and Neil is a nasa priest

[@STST]

@@tah-rehar-1802 let me guess. The earth is flat?

[@babayega_]

@@STST the horizon is flat.

[@STST]

@@babayega_ At ground level it looks flat Yes. On a flat earth the horizon would be much different than we see on earth

[@dakudeadsoul7741]

That moon explaination was just amazing 💯🙌🙌🙌😲🤯🤯

[@Tonyjay032]

Amazing knowledge we should all understand!!!

[@germansanchez316]

I had a rough day. When Chuck looks serious and says "Tell me about it." y almost exploded in loughter. They do me good while I learn something new. These dudes rule, they match each other like toast and butter.

[@samirh.1763]

😂 yeah that moment was Hilarious

[@martinsorg8815]

Love the show!

[@nealbowserjr4344]

The synergy between chuck and Neil is, amazing.

[@bredemeijer9648]

Learned a lot. Thanks.

[@shawnkerr]

Love these talks you two have. Your is one of the only videos I don't mind watching more then a half hour. Fascinating.

[@godanibal3234]

My high school teacher told me something about ice: when freezing, water molecules will connect to form hexagons, and in the middle of those hexagons there’s only empty space so that’s why ice is less dense than water

[@reasonerenlightened2456]

If Earth rotates once every 88 minutes then how flat the earth would become?

[@mlijah2730]

@@reasonerenlightened2456 I am almost fairly certain that the Earth would not flatten if all the matter is moving at the same pace. I also saw you ask this question in regards to SpaceX and their rockets, and I would like to explain that force of rockets is not high enough to displace the movement of the entire planet, and if it was, the rockets would only destroy the earth, not propel it faster. The planet's surface would break far before it was propelled, even thought both are entirely impossible under the conditions stated. All that would move anyway would be the wind, some water (maybe), and whatever rubble was around these "engines". Hope that clears it up.

[@yassasloan7308]

high school science is a joke

[@knuckle12356]

Hexagon is the most efficient perimeter to area ratio. Multiple soap bubbles on the surface of a bucket go from round to hexagonal as they propagate and crowd and stick to each other. The same thing happens with bees making honeycomb. The wax cells get put together round, but the additional packing of more cells cause them to find the best ratio to take up the smallest footprint (perimeter,) with the most area. And that happens to be the hexagon. Physics!!

[@Aquatic_Boys]

@@mlijah2730 Earth bulges at the equator from spinning at 1Rev/24*60 min. 1rev/88 min. would increase force on the surface and make it bulge more. Go faster and faster, the earth wil bulge more and more. If there is no limit on speed it will become a pancake shape or it will begin to loose matter. I wonder what would happen first?

[@qa4057]

I do love you guys. Keep on!

[@Ridgyed]

Une belle équipe qui rend la science agréable à suivre. Bravo nos chers voisins du sud.

[@linedanzer4302]

I think I'm sort of looking forward to the *Explainer* done in Chuck's Scotch/Whiskey voice. 🙃

[@mrbones909]

I learned all this stuff in school byt I love seeing Chuck learn

[@jaytucker4338]

#learnchucklearn

[@lovelovelove5744]

Things You Already Knew with Neil deGrasse Tyson

[@wishtoremainanonymous2778]

I want more of chuck ❤❤

[@ev1Lsect]

I love how great these discussions are, makes me really have a tough time dealing with most people who know nothing about science. Which is most people.

[@nasiruddin208]

Neil is great teacher of our time. He is genetically unique and distinct. Planet earth needs more intelligent minds like him to prepare generation z to graduate ours to an advanced civilization in stage two. My deepest regards to Neil to make me understand complex dynamics of a broad range of scientific issues to a lucid one. Long live dear professor Neil. Nasir Uddin from Bangladesh

[@mirk0x]

why is he genetically unique? :o

[@danielpelanek7869]

@@mirk0x He is obviously a lizard. Look at him…

[@Johnboy33545]

We are all both genetically the same yet unique. You and I are brothers, Nasir, in the same family. Peace, my brother, to you and your more immediate family. You are correct about Neil.

[@heidi190]

"you just got scienced" is my new favorite saying... make a meme of that, please :)

[@carolinerothenberg3982]

Thank you to Neil, who teaches me things I should have known years ago! He is an amazing teacher. He makes science exciting, fascinating, and far easier to understand than any of my teachers were able to do! 😊

[@darshanamoateng6283]

Just brilliant 🙌🏽🙌🏽

[@EnigmaticPsych0]

I would suspect that the reason floating soap was a selling point is because people use to take baths, rather than showers and if you dropped the soap, it was easier to recover in the bath if it were floating. Otherwise, you'ld be fishing for it.

[@FOG-321]

The reason for floating soap was an accident.The mixers were left on all night.Whipped air into the soap.They processed it and sold it.What else ya gonna do?

[@andrewm8429]

Im not sure if im allowed to do this but I love StarTalk and watching Neil and Chuck so a few videos ago Chuck talked about what its like for a fish to try and describe land and people to other fish. The rant was hilarious and it inspired me to animate it. Not trying to get exposure or whatever. Just thought itd be cool if they saw it. Regardless i had fun making it, you guys are the best, and keep doing what youre doing! Video link kzbin.info/www/bejne/qWSwlmuiobSciqs

[@pedramsaadabadi]

it was awesome🔥

[@AnatoliyDudanovskiy]

Awesome animation! :D

[@andrewm8429]

@@AnatoliyDudanovskiy thanks! 😁

[@KotDT]

This^

[@Mcgovern124]

I love how Chuck is absolutely blazed for everyone of these.

[@mersparks]

Wow, that was great! Good job Neil and Chuck.