Neil deGrasse Tyson Explains Why Rocks Float

[@SunflowerKinggg]

Neil: "You gotta find the Iron ore" Chuck: "...the Iron or what?? 👀" Neil: "😶😐...😂😂🤣🤣" I just LOVE their relationship 💀

[@s1zeuq]

Me too 😂 bro

[@Seekay_]

Or else!

[@djcaymann]

Greatest Chuck joke ever!

[@VajiraLasantha]

Come on, you spoiled that for me.

[@lautabott_uy]

@@VajiraLasantha Why you reading comments before watching the video tho ? lol

[@Rhekon]

The Earth is fine, but deep down it's dealing with some heavy stuff.

[@ashwinpillai2114]

hahaha

[@ViratKohli-jj3wj]

All dads are laughing

[@godofthisshit]

🥁

[@isMatvei]

LOL

[@stephaneroy3976]

I thought for sure you were about to quote George Carlin: "The Earth is fine, the people are f*cked!" from his Save the Planet skit

[@PeterSserwangaShow]

I never understood why we were so confident about where metiorites came from until this video.

[@joanhall3718]

I’m so proud of myself! For once I actually guessed what Neil was going to say about the earth’s crust before I listened. I’m sure this was a first for me 😁

[@rusteshackleferd8115]

Niel : rocks are light Ten year old me : tell that to my skull!.

[@madeonearth6506]

Wow that’s rough g

[@brianbrian1769]

Stay away from Muslim countries. Just to be certain

[@FeLiNe418]

@@brianbrian1769 yay being an imbecil I mean a racist is cool!

[@eagle___shadow]

@@brianbrian1769 What do you mean

[@AquaPeet]

Which parent gives their kid a skull to play with?!? Oh wait...

[@JAMES51990]

I love the story that Neil told about the Coffee Shop Employee that told him that the Cream sank to the bottom of the Cup! 😂

[@Tachyon-db1bz]

it was actually hot chocolate I think. but yeah, the laws of physics cease to exist in that cup hahaha

[@JAMES51990]

@@Tachyon-db1bz 🤣 It was something like that yeah... great stuff!

[@victorb145]

@@Tachyon-db1bz So you think he walked into a hot chocolate shop? It's been a minute but I thought he was just at a restaurant.

[@anurag_verma_youtube]

I also remember that

[@theCodyReeder]

This is a topic that I cover in a video that I’m working on.

[@suniavuki4316]

can't wait to watch this one!

[@Alex-cn9uj]

Such a swell fello, I'm going to go check that video out.

[@RPIdemon]

Chuck coming through with the dad joke. I needed that

[@The.RandomTube]

I read it as Why Rockets Float, said to myself "Yeah, I know that one" and then I read it again.... "Oh boy, here we go!"😂

[@jotcw81]

Hey, you read wrongly!

[@Evangq]

@@jotcw81 Thank @LiteralLarry

[@jotcw81]

@@Evangq You are very welcome, glad to help out!

[@alejandradenizphotography]

“The iron or what?” 😂😂 always get a kick out of these episodes 👍🏼👍🏼

[@PeterSserwangaShow]

10:42 "The iron or what.."? HILARIOUS! thank you!!

[@thomaslane1547]

The iron ore rocks.

[@raym6791]

Brought a pistol to a laser fight 😂😂 Chuck always hits my funny bone

[@sujitp6995]

Neil said that 2 seconds before him

[@Merto6]

In "the fires within" by Clarke we discover a civilization of dense beings living deep underground. Both we and them didn't think possible for life to exist in such dense/near vacuum environments.

[@bobbailey7235]

I just wish to say how nice it is to have the humor of Chuck Nice incorporated with this show. Just when I need a laugh this man with his great intellect interjects humor into my ears for my brain to enjoy. Thank you from all of us!

[@w0nd3rlu573r]

4:18 Oh, so that's why rock`n`roll came first, and then heavy metal took over. As we progress we learn more. This makes perfect sense indeed! \m/

[@SubparSkill]

The thing i love about these video's is the detail and random facts throughout. I was watching thinking about Pumice and how it floats and the last point they talk about is exactly that. I love this channel

[@alonelyspaceman]

Title: “Why do rocks float?” Me: oh cool *wait*

[@zanop15]

What do you mea... Oh

[@zanop15]

@Sam Huamán Rock = plane ( Ez )

[@JackieFrankieful]

rocks float above iron core

[@alonelyspaceman]

@@JackieFrankieful This is true.

[@ManuelPragash]

Second round was "COSMETICS" that cracked me up. 🤣🤣🤣

[@insane_troll]

Bedevere: What also floats in water? Peasant 1: Bread. Peasant 2: Apples. Peasant 3: Very small rocks.

[@mrlowie5728]

Then peasant 1 and 2 beats up peasant 3 for saying that thus that fact was lost to history until now

[@davejfourptnd3642]

A Duck!

[@godbearxd]

I was very confused when I read the title. When I hear float I immediately think water.

[@phillipstroll7385]

My first thought was volcanic rock and moon rock. Both are mostly air and float. I knew the guy who invented acid wash jeans. He soaked volcanic Rick in bleach then washed jeans with thousands of little pieces of volcanic bleach soaked rocks.

[@TheBiggreenpig]

Magnesium is actually lighter than Silicon (rock stuff), so I wonder why Neil mentioned it along Nickel and Iron.

[@AmarSinghDixit]

Dwayne Johnson knows how to swim,that's why rocks float.

[@rishavraj5661]

😂

[@scottgrohs5940]

Which beings to mind a related question: why does muscle float?

[@jsmithers.]

@@scottgrohs5940 Because muscle isn't dense.

[@jadecoley]

Love StarTalk

[@namespacefnz]

I was at my parents house & a Tide commercial came on in Spanish, I glance & it’s....-> CHUCK!!!!😲 👍🏽 🧼 👨🏿 💵

[@AR-xs9uk]

Same. I said well we are in a pandemic Chuck needs to make money without stand up shows 😆

[@peteredwards2318]

Just a quick question on the tangent about meteor rocks. Meteors fly through space, getting soaked in hard radiation from the Sun, cosmic rays, and so on, then, finally, they hit the Earth. To make it easier to find them, without going to special places, why not build a gieger counter onto a rig like a metal detector, that you could sweep across the ground ANYWHERE, not just broad, open places?

[@babungus2099]

Can we just take a moment to admire Chuck's exquisite lineup? Who is this man's barber?

[@lightningcoreeygja9678]

I want to hear more about Cores. More knowledge will help solidify my New Energy.

[@breoganrey]

But how do the hypotheses/theories on the evolution of early Earth take into account the fact that the closer you are to the centre of the sphere the less total gravity field a mass experiences? Is density and buoyancy still relevant in that case?

[@averageaf4321]

I liked for the iron ore joke, keep doing you chuck!

[@jeffreynobleza3267]

NEXT QUESTIONS: Why earth has deserts ?, why is it massive and huge ?, where all the desert sand came from ?,

[@Schizz_Popinov]

Bows were superior to muzzle loaded firearms because they were extremely slow to reload. Brass cartridges and repeating firearms gave the advantage to firearms over arrows.

[@dru4670]

"The revolver, the equalizer of all men" Samuel Colt.

[@Ash-ng4mn]

I hate that I need to preface my comment....but, as an American, I am soooooo thankful for scientists like NDT.

[@LiftPizzas]

Only very small rocks. Also floats: bread, rain, apples, gravy, lead, churches, and a duck.

[@rubencolvill]

Neil deGrasse Tyson: Ok class, Today we will learn about why rocks float. Student: will this be on the test?

[@Lanhoj]

*I love it when Neil & Chuck just joke around...* @9:04

[@samismos6892]

These are dangerously fun to watch

[@d.a.b.2336]

What about certain corals actual composition ? I would love to hear Neil's opinion of the guy that built the Coral Castle by himself without modern machinery. Is there something you can do to the coral to make it very light temporarily ? Bc if not this guy might have been an alien lol

[@charlidog2]

He mastered leverage.

[@vansdan.]

Not a question I was asking but glad to have the answer. Thanks once again Neil.

[@stevestumpy6873]

The first battle between metal boat took place in the civil war, both were metal and they tied.

[@victorb145]

This episode rocks!

[@royluo5139]

0:28 I'm pretty sure all of my teachers will disagree with you on that

[@janrdoh]

Neil always finds a way to explode my mind.

[@mihaicolceriu-nicola7148]

i saw in the recommendations"neil explains why rocks float" me: no they dont... i got to see this! me,by the end of the clip: ok...i guess they do lol

[@waqqiali2960]

Nice explanation!

[@Magnusfication]

I always hit the link before i read the conclusion of the sentence, Dr. Tyson explains..... Never been dissapointed yet.

[@michaelhood5221]

"Earth has heavy metal at its core" me too Niel me too...

[@droidnick]

Neil, We love you!

[@mrfriz4091]

I love these guys. Humorous and informative, what more do you need?

[@64bitUnity]

Chuck has gotten so much better, props Chuck!

[@prla5400]

Chuck has evolved

[@skullboi_cue]

That Iron Ore line was the best😂🤣 these dudes make learning fun

[@absoluteradiance5423]

The earliest use of metal warships, that I can recall, was during the American Civil War concerning control over the Mississippi River. If you know of any earlier uses let me know.

[@sullya5130]

Chuck! Read The Safehold series. 60% of the book talks about advances in warfare, specifically Naval warfare and iron ships.

[@navinya31j]

Earth's magnetic field and its details required

[@louistherrien4483]

The Earth's core is made out of heavy metal. 🤘

[@hareecionelson5875]

The core is made of Iron Maiden

[@FeLiNe418]

@@hareecionelson5875 and nickelback

[@frogz]

@@FeLiNe418 you make funny jokes as we jam to tears of the dragon :) \m/

[@JAIBRASKYRIM]

And Rock

[@narutokunn]

That was a rock solid explainer.

[@avi12]

When I think about it, it's so strange that you can have a wooden/metallic ship that floats on water, yet an iron anchor won't make it sink On the other hand, once you drop the anchor into the sea, the anchor _will_ sink

[@wanna-be-cowboy]

My friend, I am buying you an imaginary beer Enjoy 🍺

[@jmm95076]

Actually the Comanche Indians defeated the US cavalry with bows and arrows. They were able to shoot off multiple arrows before the troops could reload. So, at 2:19, it would be incorrect to say that the first person with a gun had an asymmetric advantage over a person with a bow. The Comanche were ultimately defeated when the revolver was invented.

[@vickychaney-little4059]

More Chuck!!!! (autocorrect almost got me in trouble there...) LOL

[@ghostwolfx]

They should do an explainer on why rocks can skip on a lake.

[@zybrinskiebangcado9403]

If its Sir Neil explaining uninteresting topics become mind blowing and eye opening and comedian chuck brings extra laughter! Thank you sirs!

[@annereyes8476]

You don't know how much watching your videos cheers me up!!! Keep rocking~

[@nicholasvansteenwyk6406]

Since the universe is expanding and everything is moving apart, is that also happening at the atomic level? If so, are the protons and neutrons and everything that makes up atoms growing larger as well? Just a curious dad that likes science?

[@jaredhowell7104]

You guys always make me smile after a long crap day. And I learned something

[@dopebreakz]

thank u so much Chuck & Dr. Tyson for making me laugh and at the same time expanding my knowledge of the universe !!!

[@ManaBDew]

I do appreciate you expanding About Jupiter is the big guy On the block like a frisbee It slings these back out into space 🤘😎👍😁

[@prla5400]

9:40 One of the many...

[@Sunshine-fi5fq]

Rock is light 🔥 u know, I always wondered what’s going on behind the scenes 😁 this is awesome! Love you guys ❤️

[@vvceo9294]

No kidding! I am literally doing my feet with a pumice stone as I watch this! Great call!

[@ManaBDew]

ALH84001 was once classified by NASA eventually this sample was said to be a match to a Mars rock 🪨 specimen By calculus Analysis 🧐🙂 Anyway Rock on 🤘

[@calvinsharara]

Im still wondering why I thought of Rocs (rockets) instead of Rocks

[@SacrificeBreedsSuccess]

Chuck Nice is a legend

[@JeremyMasters87]

Oh boy. These guys make interesting stuff funny. Love listening to them.

[@damslifevlog5031]

MADE my Day, Keep it up Guys

[@FightingIrish327]

Man i would love to just meet with Neil and have a conversation. He is such a awesome dude

[@0_HappyDaze]

Do atoms and particles flow the same way, similar to a vehicle speeding off the wind goes the opposite direction you're moving or are they volatile and don't have any dedicated path or direction?

[@glennalderton1313]

So has there been sufficient time for the geological forces of our planet to change the form of all the rocks that originally came to form the planet? Would there be any original space-based (interplanetary?) "rocks" still in the original form left?

[@Starfals]

Chuck 🤣🤣🤣🤣🤣🤣 I cant even imagine this show without you

[@kgw100]

Yes the rocks we see in our daily lives are the least dense on the Earth. The close you get to the core the more pressure and density

[@ace0736]

A new explainer zone

[@vanessa271]

I sure would have studied science in college if the instructions were this hilarious. I wouldn't need repetition; I would memorize on one teaching because it's so hilarious.

[@jarrettbobbett5230]

Neil DeGrasse Tyson for president !

[@bigman4407]

...no. He's just a science guy. He's not political.

[@kjb21161]

Why rocks float huh? Cant wait to watch this!!! Great videos by a Great man!

[@canislupusminecraft2670]

3:02 did we bring a pistol to a laser fight, or did they bring a laser to a pistol fight?

[@ntondolo100]

If air has equal pressure around us, why is the ocean having more pressure on us the deeper we go...?

[@fromnorway643]

Air doesn't have equal pressure around us. Imagine the atmosphere as an ocean of air. Most people stay near the "bottom" of that ocean (close to sea level) most of their time, but the pressure is less at greater elevations or around aircrafts. Compared to the pressure at sea level, it's only 1/3 at the top of Mt. Everest and between 1/4 and 1/5 around passenger jets at typical cruising altitudes.

[@dru4670]

Pressure increases with depth in fluids.

[@dru4670]

Can be explained with a famouse jet hole experiment. Where three holes are drilled successively, one on top of the other in a can and filled with water. The jet of water coming from the hole closest to the bottom ejects furthest and faster and the jet size decreases as you go up the can.

[@siik-ghostface]

Pennywise: Hya Georgie. Pennywise: Like rocks Georgie? Georgie: Do they float? Pennywise: oh yes, they float georgie...they floattt, they all float, and when you're in space, you'll float too.

[@DieselRunr]

Hey Neil, I would just like to say, the rocks we use everyday actually are mined. Aggragate is usually mined in buried valleys and former river beds.

[@sherrylennondewitt4102]

You guys keep me smiling...

[@matthewlofton8465]

How did they build up that catalog of values with respect to density and seismic waves? Also, how do they tease out if a signal has passed through multiple variances? Obviously they're collecting lots of signals from lots of points but If iron slows a signal by 6, gold slows a signal by 7, and diamond slows a signal by 13, how do you determine that the whole area is a mix of gold and iron rather than one gigantic diamond?

[@blackdeutrium746]

I love startalks

[@varunahlawat9013]

Biggest fan sirrrrr, Dr.Neil DeGrasse tyson I wanna be physicist tooooooo, nd I am in high school and things are so hard I am loosing patience...

[@philipsteele1277]

Neil is an actor , not a physicist. Look it up. He has no degree in that , what so ever. He is a fake.

[@patrickfleming5358]

@@philipsteele1277 ?

[@varunahlawat9013]

@@philipsteele1277 oh bro may u get some neurons, he have written 30+ books he have phd, never be jealous of others bro😂😂

[@daveswampSC]

Just the right amount of info..!

[@andrenik6493]

magnesium density 1.738 g/cm³ < The average density of granite is between 2.65 and 2.75 g/cm3.. oops, Doctor

[@LETSBESTRONGER]

Pumice floats until it gets water logged then sinks!

[@ShikhaPrasadCraft]

That pumice stone one was really awesome!! 😂😂🤣🤣

[@RichardPeterShon]

You know phd holders should get retested every decade or so. I just cant get my head round how this is a conversation between two intellectual people. Come on pls...

[@stankfaust814]

Matter stratifies by density within a gravity well. Lightest stuff (gasses) at the top end and the densest (and likely ferrous) matter at the core or center. General relativity and rotation: Obviously, the increase in gravitational acceleration does not stop at the surface of the earth. The deepest point of the gravity well is at the center of the body and this is also where the greatest acceleration is. It's best to visualize this with 3 clocks. One in deep space, one on the surface of the earth and one at the center. We know from experiments that the clock in deep space will run faster than the one on the surface. The clock at the center will be running progressively slower than the one on the surface and much slower than the clock in deep space. We know that as an object falls toward a gravity well like the earth, it accelerates the closer it gets. Acceleration and time are inextricably linked. The slower the relative time, the faster the acceleration. What does this have to do with the rotation of the earth? In an earth sized body that is in rotation (not tidally locked) the strata closer to the core will spin faster in the direction of rotation than the matter at higher levels from the core. This is a general relativistic principle. As much of the dense matter at the core is also ferrous, this dissimilar spinning from the core out to the crust produces our magnetosphere. The same is true with jupiter or the sun or any other planet with a magnetosphere.

[@bandeshswami6870]

thanks Neil and Chuck :)

[@jontallman]

You can also find meteorites in farmland where most of the rocks have been cleared over the years.

[@aaronseet2738]

Rocks are light. We are simply weak.

[@eagle___shadow]

😁😁😁😁

[@gauravdhyani_021me8]

Please explainer on relation of pressure and temp