5 Things You Don't Understand about Gravity

[@chrisbm123]

I have a book on anti gravity, I can’t put it down

[@warkatwargaming2358]

Annoyingly had to "like" this

[@chrisbm123]

@@warkatwargaming2358I couldn’t resist the bad joke

[@kevinfoster1138]

Horrible joke. Haha

[@bigblu142]

😂hahahahaha

[@chadp363]

Heyyo

[@NeoTechni]

That was the funniest "yo mama" joke ever, just cause it came from you of all people. I am still laughing a minute later

[@nugboy420]

Go watch brain blaze haha he's not just a fact boi

[@bendover9021]

I couldn’t bring myself to laugh, but it was hilarious the writers made him say that with the editor# putting that gif in 😭

[@wingerding]

I wish so much i could laugh lough like people like you do.

[@80srenaissance67]

It's funny,because it's true

[@mohammadsami3511]

Didn't expect that yo mama joke 😂

[@jamesmcconnel6198]

Fun fact: The ends of the LIGO arms are built up slightly higher than the surrounding landscape, because they had to be so straight, that they had to account for the curvature of the Earth.

[@dontbeahypocrit]

It went from 900+ likes on the dad joke, 250 likes on a weird yo momma reference, and 20 ATM for a select few that had a bit of a nerd cringe moment, but also still laughes and voted for the inability to put the book down 1st because it's still funny laughing at stupid obvious yet *farts loudly*.... see what I mean?

[@BriarLeaf00]

Suck on that, flat earthers.

[@jacksonstarky8288]

I wonder how the flat-Earthers explain that one away. 🤣

[@OceanusHelios]

*gasp* The flerfers are going to get out their spirit levels.

[@JohnLowenthal]

Um...LIGO is underground. What "surrounding landscape" are you referring to?

[@venietvideo]

Physicist here. Congratulations to the writer Jehron B.! Very well done! Exceeded my expectations by a wide margin.

[@glennswart1487]

Fabric of spacetime, gravitational waves at LIGO, time being a material thing that "flows" at variable rates, black holes, dark matter, dark energy, Jesus H Christ it boggles the mind that people actually believe theoretical physics is a form of physics and cant see a mystical cult if it talked to them in a patronizing voice pretending the brain just can't grasp obvious contradiction because someone called it "counter-intuitive: *facepalm*

[@lewis7315]

A white hole created each galaxy with matter from another universe as well as causing cosmic inflation. Today, our galaxy is slowly disappearing back down that black rabbit hole! :)> ... did you mean vini vedi vici? ... I came I saw, & she got everything?

[@glennswart1487]

@@lewis7315 And then the space wizard created a purple hole with pink spots and that's where leprechauns come from

[@edwardwood3622]

Meh

[@andrewsurowiec80]

Did not have Simon making a your mom joke on my bingo card for this year... That was great. Thanks for the laugh

[@travesty-studios]

I was shook

[@garywhite2050]

I actually LoL ed OUT LOUD! 😂

[@jeremiahburton9894]

Oh he even got a mom joke in😂

[@FlyWithFitz81]

"OOOHHHHH, He said yo MAMA!"

[@jamiestrinati-greenwood8360]

I had to rewatch that part a couple of times because I was laughing too hard to hear the rest. Fact boi strikes again

[@joshuabrigden4820]

Simon's mum is the great attractor

[@TheMaddoxfam]

Trying to wrap my head around one of Simon’s sickest burns being on side projects and not BB or Decoding

[@halfgod85]

That alone justifies my following of all his channels.

[@Astronomator]

When I was watching the "Lost In Space" movie with my family, there was a scene in which the planet the ship was orbiting spontaneously (through technological means) collapsed into a black hole. This caused the *Jupiter 2* to begin falling into the newly formed, planet-massed black hole--ostensibly because of the increased gravity, because, well, it's now a black hole--instead of maintaining its original orbit. Out loud, I said, "Oh, COME ON!" Everyone in the theater looked at me as if I had farted during a ballet. Sometimes being a physicist makes life difficult...

[@ronprince1478]

Astro, any time you have more knowledge about a topic than others around you, you are weird. Example, watching the movie drop zone, I could tell where all the other skydivers were by their laughter during scenes that were supposed to be serious but skydivers knew to be impossible. The vast majority of people want to be the same, not correct.

[@jacobviator3118]

So I know saying that the 4th dimension is time is not _exactly_ correct but is used as a way to explain it in layman's terms because it's very difficult to understand for the smartest of us, mainly because we are 3 dimension beings.. But could a better explanation be _Space/Time_ is the 4th dimension and _gravity_ is our _interaction_ with the 4th dimension? I'll stop there because any more and i will type out a book with ease! I have spent almost the last hour on only watching the 1st 5 minutes of this video, pausing, rewinding, pausing; my mind lost on this tangent revelation and trying to understand it, grasp it as best as I can with how extremely limited that is possible! We are just not physically able to observe this next higher dimension. And just as we cannot fully grasp what gravity is, this is because it is not a force as stated. It's not an actual "thing" as difficult to grasp as that is since we feel it every instance.. but calling the fundamental "forces" "interactions" instead, it makes it easier to visualize that gravity is only 2 or more (everything really) bodies interacting with each other in the 4th dimension, and we are experiencing the results of that/those interaction(s). Any thoughts or ideas you would like to share would be amazing! Am I on the right track? Or am I just really high and need to get my life together because I'm talking craziness? 😂😂 my mind _is_ feel very fried right now, mostly from spending the last hour trying to understand the 4th dimension and how it explains gravity!! Only mostly tho 😅😊😁🫠 I feel I have barely said 2 words on this exploration of reality but already have the paragraphs I didn't want to start, it would be nothing to do 20 more and still only barely scratched the surface; so I will stop here!! Hope you are able to follow my thought process and I hope this helps others slightly grasp the idea(if I am right!?! 😂)

[@jacobviator3118]

​@@ronprince1478 what?? What are you talking about?? No, just because you enjoy falling thru life blindly ignorant of the world around you, doesn't mean "the vast majority," or even _ANYONE_ else feels the same! And having knowledge and even _sharing_ knowledge is not weird.. there is just so much wrong with what you had said, _that_ is what is weird!!

[@ronprince1478]

@@jacobviator3118 I believe you when you say you are stoned, that comment was in support of the narrator stating what other people don’t understand is SEEN as being weird. I may fall through life (as a skydiver, pilot, GA, LSA, Glider, paraglider and hang glider pilot), but I don’t need mind altering drugs to cope with the real world.

[@Astronomator]

@@ronprince1478 Same. I could spot the physicists in the theater by their laughter while watching *Gravity*.

[@righthere1776]

FUN FACT: Light travels faster than sound. This is why some people appear brighter...until they speak

[@Antoni0704]

I came to get info but ended up getting roasted

[@garyclark3843]

I think you mean blazed.

[@Maver1ck911]

OGBB ​@@garyclark3843

[@jeffdroog]

You get what you get from FactBoi lol

[@cotysteinmann3721]

Mom

[@mho...]

no you werent! ...yo momma tho 🥸

[@hendersongalbreath1072]

1:22 The seldom-seen, often-feared Simon burn.

[@dudoklasovity2093]

he was distracted by preparing himself for the "mom joke" :-)

[@danm7298]

Fun fact. Gravity loses strength over distance but never reaches 0. So everything in the universe is pulling on you and vice versa.

[@jgrotnes]

@@danm7298 The Universe are, in particular, pulling our legs!

[@johnhoppkins7258]

Cool, I didn't know this. Could this be used to determine ancient celestial objects that have long since disappeared from our view and figure out where they came from and went too?

[@klocugh12]

E = mc^2 is not complete BTW. It is actually E^2 = (mc^2)^2 + p^2c^2 to account for massless particles.

[@SDsc0rch]

momentum?

[@klocugh12]

@@SDsc0rch Yes. Massless particles still can have momentum and energy (eg photons).

[@rlibby404]

Momentum is included to account for kinetic energy, with massless particles being one of a large set of applications.

[@richardnickerson4792]

and the gammas are missing

[@KaiVieira-jj7di]

@@richardnickerson4792 No, they're there: E=γm and p=γmv.

[@leatileraseroka1119]

Why doesn’t gravity work herf?

[@BoschhammerActual]

Can’t say. I know for sure it works therf. Wherf it doesn’t work, I’m not sure.

[@chadp363]

There is a spot in Antarctica that has a weird gravity distortion, are you talking about therf?

[@EShirako]

And I think the 'here' thing they would have been talking about is how we can't get gravity to work on quantum scales, it just 'falls apart', with equations heading for zero or infinity. It works for single atoms, and even on single particles like electrons, but not on quarks.

[@Bryan-py6ul]

because gravity bent his E into a tall F, duh, curvature and stuff

[@aaronko3480]

Damnit Whistleboy, your shoulders getting in the way of a perfectly good thumbnail picturf

[@MrJdebest]

Road runner + anvil + gravity = Flattened coyote.

[@2l84t]

Mass + momentum +headlight = Yikes!!

[@timbo5053]

At least i can understand that!

[@Gounen]

The anvil and coyote were traveling straight through a curved spacetime!

[@montecorbit8280]

I was just coming to say that wile e coyote and bugs Bunny taught me everything I need to know about gravity....

[@gmoney4980]

The Coyote should sue ACME

[@OneViolentGentleman]

In case anyone is curious about the wood engraving at 1:00 It is (old) German and here is the translation (ChatGPT): Doctor Zirkel (Zirkel is pair of compasses, I believe) [1st picture:] From the study's stuffy air, Dr. Zirkel steps into the morning fair. [2nd:] Mr. Zirkel strolls to and fro, His head heavy with ideas that grow. [3rd:] Suddenly he sees with great desire A ripe apple hanging higher. [4th:] Dr. Zirkel thinks: now would be Quite pleasant the effect of gravity! [5th:] And lo, not a minute does flee, When from the tree he sees the apple free. [6th:] How great from the tree the distance is, The doctor measures with his compass. [7th:] Once his thirst for knowledge is satisfied, He decides not to let the apple be denied. [8th:] Though the process isn't fully clear, Suddenly it becomes perfectly dear. [9th:] A new law of nature in space unfurls: "The apple doesn’t fall far from the tree!!!"

[@theoriginalkyttyn7724]

Brilliant.

[@rehcubprivat4815]

Zirkel is the thing he holds in picture 6. You use a "Zirkel" to draw circles. So the german word Zirkel clearly comes from the english work circle

[@OneViolentGentleman]

@@rehcubprivat4815 Yup, but confusingly the English term for the German Zirkel is "pair of compasses". Weird, I know. 😁

[@DerMarkus1982]

@@OneViolentGentleman Why "weird"? Because what's ONE scissor? 😁

[@10002One]

@@DerMarkus1982 a blade?

[@KenMac-ui2vb]

The Zeno Effect. That and Bell's Inequalities. Really are blowing my mind. Then, of course you have Negative Energy, Entanglement, Vacuum Energy, QCD, QED, Field Theory, Tensors, Scalars, Hilbert Spaces, Time Dilation, Antimatter and on and on. You all are cray cray, and I love you.

[@davidripley2916]

Ditto. And Albert is still The Daddy !

[@TastyScotch]

“Do you hear that Mr. Anderson? That is the sound of inevitability.”

[@xenontouchstone]

Didn't do Smith or Thanos any good

[@askthepizzaguy]

My name.... is.... neo.

[@nadahere]

@@askthepizzaguy Nemo? Is that you?

[@Ji66a]

“Maybe yah Mum does!” 😂

[@tomwithuhn9472]

Nicely done video Simon. The is one the best written/edited you’ve done and in a challenging topic.

[@Mofiac]

Yes, the is.

[@DenethorDurrandir]

Just a small correction, Black hole doesn't exert the same amount of gravity as any object it's Size, rather as any object it's Mass, that's very important distinction, the single defining characteristic of a Black hole is it's density, mass / size, size alone plays no role in gravity.

[@richardpark3054]

To be complete, black holes have 3 defining parameters: mass, spin, and electric charge.

[@KaiVieira-jj7di]

A black hole cannot have a density, volume, or radius.

[@paulbarnett227]

Another thing with Gravity, GPS has to take account of time dilation for both Special and General Relativity otherwise the accuracy would drift away rather quickly by about 2km per day.

[@sophierobinson2738]

Is it akin to the 15 degree per hour drift (thanks, Bob) discovered using a laser gyroscope?

[@jamescox8429]

@@sophierobinson2738 No, the 15 degree per hour "drift" is just due to the rotation of the earth. One full rotation of 360 degrees / 24 hours = 15 degrees per hour. It wouldn't be exactly 15 degrees due tot he difference between a sidereal day and a solar day. Newtonian mechanics is fine for just about everything. You could fly to the moon just with newtonian mechanics. The gps system needs relativistic corrections because it uses time to determine location. The satellites broadcast the time using atomic clocks on the satellites and at ground stations. The receiver calculates the location based on the difference in time from different satellites. The satellites are moving fast in orbit, which causes their time to slow down slightly compared to on earth (special relativity), but they are also up much higher which causes their time to be slightly faster than on earth (general relativity).

[@Snow41174]

The Deep Space Network, when using Doppler shifts to determine velocity for orbital determination, must apply a frequency offset that differs for each site, Australia versus California. The offset is derived from the gravity felt at each site. Density of the ground and elevation change the values of the apparent gravity at each site.

[@mikefochtman7164]

Yes, competing effects. Because the satellites are traveling in orbit faster than the ground receiver, special relativity says their clocks should be slower. But they are farther away from the gravity 'well' of earth, so their clocks should be faster. I forget off hand which one is larger, but it's also interesting that the eccentricity of their orbit (causing distance of satellite and its speed to vary) are also compensated.

[@viktorpaulsen627]

@@jamescox8429 If A moves fast relative to B, then B moves fast relative to A. Is it A's or B's time that slows down? Basic question which is usually skipped by those who try to explain this.

[@dellman2kawesome]

Thats the thing that genuinely mesmerises me with space is that any question you may possibly answer will only lead to a thousand more questions , something we will never understand or truly comprehend its creepy but amazing at the same time, also the size of it is just ridiculous when you stop to think how truly meaningless and insignificant we are in the grand scheme when not even our solar system would be a grain of sand in the ocean

[@teranyafitch2328]

Actually our entire solar system is roughly a single particle in just the observable universe, nevermind the entire thing we can't even see.

[@jamieclarke2694]

If energy is mass in a different form and particles pop into existence and annihilate each other, is spacetime matter too and the particles pop out and when they annihilate they're actually just remerging with spacetime?

[@KaiVieira-jj7di]

@@jamieclarke2694 Energy isn't mass, necessarily, but all mass is energy. The particles emerging and re-emerging are doing so in and out of whatever quantum field they're associated with, but not spacetime.

[@kurtsherer8211]

Newton: "Gravity is so absurd no one can understand it." Einstein: "Hold my violin."

[@CustardCream22]

"Maybe your mum does" 🤣🤣🤣

[@FlyWithFitz81]

Gravity: Just when I thought I was out, ... pull me back in!

[@douglasbillington8521]

I'm too old for this $#it! Or I'm too far from a sufficiently large mass!!

[@SpaceDad42]

That’s what I said to your mom.

[@capnkwick4286]

Just like the lyric "you can check out any time you want, but you can't ever leave".

[@Captain.AmericaV1]

Thats what id say if i accidentally got caught in the event horizon of a singularity..... Whoopsy daisy!! 😂😂

[@mho...]

mondays....

[@Ryans_Revenge]

The mom joke caught me off guard and now i have to wipe coffe off of my phone.😂😂😂

[@victorfranca85]

Space itself can travel faster than light. The seemingly ever increasing expansion. And entanglement seems to be instant and ever present.

[@jonbold]

Yes. That is because the thing that controls the speed of light is galactically defined, and space is a lot bigger than a galaxy

[@ianstopher9111]

The measured distance between two identified points in the universe can increase faster than c, but that is not the same as space 'travelling'.

[@Michael75579]

It's OK for entanglement to act instantly over any distance because you can't use it to send information. If you measure the spin of one of the entangled pair of particles and get spin-up then entanglement will ensure that someone who later measures the spin of the other particle will get spin-down, no matter how far away the other particle in the pair is. You can't use this to send messages because there's no way for you to know whether you're going to get spin-up or spin-down (and therefore what someone measuring the other particle will get) until you measure your particle.

[@KaiVieira-jj7di]

There is nothing physical about "space itself traveling" which is a choice of coordinates and not something out there in nature.

[@alexanderwickstrom4463]

According to Einstein's theory of relativity, nothing can travel at the speed of light. What we know of today, in 1519 when Maggelan made his voyage around the world, then we thought the earth was flat. But for the "Big Bang" an explosion is not in an instant it spreads, we can see that and study it here on earth. Otherwise, you have blown the Big Bang theory out of the water, that the universe is still expanding.

[@RealJonNewton]

1:05 is the beginning of the sickest burn ever 😂😂

[@alexdelvento1273]

Does this guy ever stop making KZbin videos. Like wtf.

[@kingnaga619]

Homeboy puts in a 40 hour work week for sure.

[@Sammael251]

You must be new here. No, he does not stop, and he hasn't stopped for years. It's kind of insane, but there's always so much content and I love it

[@the80hdgaming]

Simon is really a series of clones... The original Simon has been kicking back on a beach, sipping mimosas for at least 4 years now... 😂😂😂

[@rj13bayne2]

Welcome to the Simon WhistlerVerse 😂 There are *so many* channels here. You'll never not have a video to watch again.

[@alexdelvento1273]

@@rj13bayne2 he NEEDS to make a logistics video on how he produced his videos.

[@ignitionfrn2223]

0:35 - Chapter 1 - It's not exactly a force 5:05 - Chapter 2 - Our theories fall apart at the quantum level 7:45 - Chapter 3 - It's also limited by the speed of light 12:20 - Chapter 4 - Gravity warps the passage of time 15:45 - Chapter 5 - It is most extreme in black holes

[@Assenayo]

1:25 "your mum" joke.

[@johngriffon2118]

That 'ur mum' joke really brought me back down to earth

[@canonwright8397]

I once escaped from a black hole riding on a gravitational wave. They said it was impossible! I told them I didn't have time to explain. =].

[@ARIXANDRE]

Best use of a Mom Joke in years...

[@soundcolor1]

I very much appreciated the out-of-nowhere “Your Mom” joke. Definite LOL, rewind, repeat. Thanks for that moment of levity.

[@dmonvisigoth1651]

That mum joke came outta nowhere, fuckin' killed me yo

[@chriswoodend2036]

The young picture of Einstein makes him look like he sells tweed covered furniture. Everything plaid.

[@Bryan-py6ul]

This was a great one Mr. Whistler, keep em coming!

[@DataJack]

This is excellent. One of your best.

[@randywoods67]

Never thought a Brit-accented "your mum" joke would ever land so hard, but you did it, mate!... 🤣

[@basecius]

Correction: The strength of gravity isn't stronger in the center of a planet. It is in fact zero there. Inside a homogeneous sphere, the gravity is linear to the distance from the center.

[@neilwisnewski7013]

Thank you. But I have to correct your correction. Earth's gravity is zero at Earth's centre, but we are still in the sun's (and moon's etc) gravity. Otherwise, love your work.

[@user-tm7mr9je9v]

THIS SHOWS, THIS PRESENTER IS A BULL**** KZbinR BUT TRY TO USE PHYSICS TO EARN MONEY ONLINE

[@basecius]

@@user-tm7mr9je9v No, it shows that everybody makes a mistake once in a while. Even if they are correct most of the time.

[@user-tm7mr9je9v]

NO, THIS IS NOT A MISTAKE BUT HE DIDN'T KNOW THE SUBJECT MATTER. BUT TRY TO FOOL PEOPLE BY ACTING LIKE A PHYSICIST. A FAKE PHYSICIST LIKE HIM ONLY MAKE KNOWLEDGE UPSIDE DOWN AND FAR FROM TRUTH. HE IS A **** KZbinR. THERE ARE GOOD KZbinR AS WELL.

[@jonkelly7908]

​@@neilwisnewski7013However the nulling effect of the earth's gravity would be far greater than the gravity from the moon and Sun, plus there would be a point very near the centre of mass where the earth's gravity would null any other gravitational forces.

[@joshuabrigden4820]

"Gravity doesn't work herf" is how i read the thumbnail

[@sophierobinson2738]

That danged shoulder….

[@joshuabrigden4820]

@@sophierobinson2738 i swear Simo and team do these things on purpose and clearly obvious mispronunciation of commonly known words. I grit my teeth and laugh every time🤣

[@theoriginalkyttyn7724]

Herf is a universal constant that is both an immovable object and an unstoppable force, moving at a speed 1mm/sec faster than the stated speed of light. This is why gravity doesn't work herf, herf works gravity.

[@joshuabrigden4820]

@@theoriginalkyttyn7724 you actually got me laughing out loud! Nice one!🤣

[@theoriginalkyttyn7724]

@@joshuabrigden4820 I'm grateful to have given you the gift of mirth.

[@wjjonesy]

Got completely blindsided by the your mum joke, jesus 😂😂😂

[@ajparry1996]

Thank you for the Your Mum joke. Feeling a bit down today and that made me laugh stupidly. 🤣

[@EyesOfByes]

Well this little video just cost me 57 years

[@NealWilliams]

One of Simon's videos is 7 years back on Earth!

[@MilesBellas]

"Entropy" next ?

[@Paigeofmaces]

Kyubey explained that perfectly fine!

[@theoriginalkyttyn7724]

Is was until it wasn't.

[@MushroomHedgehog]

I just had to stifle the most obnoxious laugh while listening to this at work because of the “Your mom” joke. That came out of nowhere.

[@mightytheknight2878]

Astronaught; moves 1 cm The Event Horizon: that a move that you won't be able to financially recover from

[@Mofiac]

Astroknot = hard to untie

[@markjohnston1971]

Great video, Simon!

[@williamconrad1087]

That was heavy. Thanks for enlightening us.

[@wingerding]

The drawings of newton puzzling over an apple are funny to me. Has to bend over to stare at a fallen apple and wonder over wtf just happened.

[@yoitsgiook]

The mom joke was a nice touch 😂

[@junction13pirate]

Great job on this one Simon🙏🏻

[@markedis5902]

All he did was read the auto-que. He has a massive team of script writers and researchers, it’s them who deserve the credit.

[@jaymac6041]

Have a good weekend everybody!

[@revrenlove]

Hey, thanks!

[@sophierobinson2738]

😊

[@lucasirvine4194]

‏‪1:34‬‏ All my best thoughts come to me on the toilet too... 🤓 🚽 😂

[@keijimorita1849]

Time dilation makes it so that even if you could somehow get out of a black hole, the universe would be over.

[@justprivate2333]

Gravity is a cruel mistress. God forgives, gravity abstains.

[@siyabongabuthelezi4267]

I wasn't ready for that your mum line 😂

[@lde-m8688]

Fun fact, a scientist from the university I graduated from was one of the scientists on the gravitational wave paper. I have a history degree and graduated in 1995 so I can't claim to have known him. But he was there and from probably one of the most unexpected schools you can imagine...West Virginia Univesity. The good professor is Dr. Sean McWilliams. WVU has a surprisingly good astrophysics team. Must be all those telescopes in Green Bank.

[@DavidFMayerPhD]

Recently, new thinking has forged a link between Quantum Field Theory and General Relativity: the Higgs Field. The Higgs Field is (supposedly) responsible for the rest masses of the elementary particles. However, the ONLY definition of rest mass is the resistance to acceleration, and acceleration is defined entirely by General Relativity since it determines the Metric Tensor which defines local inertial frames.

[@DrDeuteron]

naw, the Higgs just gives particles finite frequency at zero wavenumber,

[@semaj_5022]

Isn't it just that interaction with the Higgs Field "gives" particles mass, which in turn allows gravitational interaction between those particles? The Higgs Field itself doesn't have anything to do with gravity, as far as I am aware, aside from imparting the property that allows for interaction with gravity. Please correct me if I am wrong. Edit: nevermind. I realized myself that I am wrong. Higgs gives mass to fundamental particles, but that (particle rest mass) is different than the mass of atoms and matter. Should have read your comment better. The majority of larger scale mass comes from the energy bound up between particles and atoms then, yes?

[@KaiVieira-jj7di]

Physical acceleration is any motion relativity to the local gravitational field (though you need some structure atop the metric) but the Higgs interaction and other particle interactions is what determines the magnitude of that acceleration.

[@DavidFMayerPhD]

@@KaiVieira-jj7di "what determines the magnitude of that acceleration." That which determines the magnitude of acceleration due to a force is called "inertial mass".

[@battleshipnewjerseysailor4738]

WHO IS HERF?

[@einsteinalb75]

I'm herf

[@williammoore3279]

I was a few days behind in viewing my favorite KZbin content. I made my tea, grabbed a couple lemon cookies I'd made earlier in the day, turned on the TV and up popped "GRAVITY DOESN'T WORK HERF". I was trying my best to figure out what HERF meant (thinking it an unfamiliar acronym). Heavy Earthen Radial Fixtures? Then it hit me, I almost spilled my tea laughing at myself. As always, wonderful, well researched and well-presented content that is much appreciated.

[@Grind24hours]

That a man isn't smiling doesn't necessarily mean he is stupid! My impression is that you are a very intelligent man. Your videos are highly informative and extremely entertaining. Thanks.

[@Rydonattelo]

Gravity is ridiculously weak. The fact that a human being can stand up and even jump with the entire earth's worth of Gravity pulling on you shows how weak it is.

[@martinchitembo1883]

The question how far can you jump from it? Beside you are quiet far from the centre of the earth.

[@SteveTheExploiter]

But gravity isn't a force, it's an effect. If you throw a baseball 90 degrees to a perfectly flat plane, the baseball will hit that plane at the same velocity as it did when it left your hand (ignoring wind resistance). This means that the space the baseball traveled thru is curved because everything has to travel in a straight line. Think of the MythBusters experiment. They shot a bullet straight ahead and dropped another bullet from the same height. They both hit the ground at the same time.

[@Rydonattelo]

@@martinchitembo1883 True but gravity is still extremely weak. The earth compared to a person is almost impossible to imagine the size/ mass difference yet we can move around. One of the problems physicists have with studying gravity is that its just so a weak compared to the other 3 fundamentals. Even the weak nuclear force is almost infinitely stronger than gravity.

[@Rydonattelo]

@@SteveTheExploiter Yes but then the effect of gravity is extremely weak then. Force isn't the right word. Honestly, I'm not that educated on this subject but this isn't my theory about gravity being weak, this is what the people that know this stuff say. You need incredible amount mass or energy before you get any real effect of gravity.

[@jooei2810]

The strongest force affecting the whole universe is curvature of space-time.

[@ImNotGonna85]

Woooooo science

[@jmanj3917]

0:07 Yeah..? Try telling that to a Flerf. 🤣

[@bigjames211276]

Watching this video until there's a mum joke... 1.30 I'm done 😂😂

[@EdwardSnortin]

Gravity doesn't work herf

[@chrisking7735]

Get outta here flerf

[@rameenana]

No BS, no gimmicks, to the point and easy to understand. Appreciate your work, mate. Thank you.

[@MrJustbrowsing12345]

17:28 excuse me sir, you mean bounce off your head, I have luscious locks on mine which renders light inescapable

[@joetrainor7160]

Simon ... this is probably your best video yet.

[@RedwoodTheElf]

1: Gravity isn't a force. 2: Gravity is actually the side effect of inertia in a region of variable time. Time is affected by the presence of matter, resulting in a "time Gradient" which causes acceleration.

[@TechnoMageB5]

One fun theory is that the Universe itself is all inside a black hole in another Universe, thus explaining WHY there is no "end" and, like the Earth 2-dimensional surface curved into a third dimension where going in a straight line puts you back where you started eventually, going in any direction in the Universe long enough will eventually get you to your starting point again. That last bit about "all roads lead to the singularity" though - I don't know. There are theories that singularities don't even exist in the first place, or at least not as single points (Look up Roy Kerr's work). I hope the sci-fi concept of hyperspace portals can be a thing. Warp drive isn't going to get us out of black holes, but hyperspace portals just might.

[@jonbold]

Thanks for a great explanatory video!

[@tunneloflight]

"gravity isn't exactly a force" ---> "gravity isn't a force, period, full stop"

[@feynmanschwingere_mc2270]

Albert Einstein is, by far, the greatest scientist of all time. He created an original proof of the Pythagorean Theorem at the age of 10; read and understand Kant's Critique of Pure Reason and Kant's Critique of Practical Reason by the age of 11, taught himself integral and differential calculus by the age of 14, wrote his first scientific paper (that was published) by the age of 16. He had perfect scores on the math and physics sections of the Entry Exam to the Zurich Polytechnic in Switzerland (named the ETH), but due to poor scores on French and history he wasn't accepted that year into the ETH. However, it's important to note that the youngest the ETH accepted any student was 18 and Einstein took the exam at 16 years old. Before the age of 23 Einstein had received the entire foundations of Statistical Mechanics and Thermodynamics from first principles, a Herculean feat of genius and diligence. Unfortunately, Einstein isn't more famous for this work (a trilogy of papers between 1901 and 1904) because J.W. Gibbs had already done it but Gibbs work hadn't yet been widely translated into German so the Germam physics community didn't know. From 1905 to his death I'm 1955 Einstein revolutionized science in a way that hadn't been seen in the history of knowledge. The closest historical analog is Isaac Newton in 1666 but the mathematics in Newton is child's play compared to Einstein. Einstein started the quantum revolution in 1905 with his earth-shattering paper on light quanta and then shattered physics again in the same year with his mind-bending paper on Special Relativity which gave us spacetime and relativistic kinematics. Einstein then quantized the radiation field, proved the duloung-petit law, discovered wave-particle duality in 1909, Spontaneous and Stimulated Emission (the LASER), gave us Bose-Einstein Condensates and Bose-Einstein Statistics, Quantum Entanglement, Wormholes, and several other amazing discoveries. Most science historians believe Albert Einstein should have won at least 10 Nobel Prizes. Let that sink in. When polled in the year 2000 by the BBC (British Broadcasting Corporation) which physicist was the greatest in history, the top living physicists in 2000 voted Albert Einstein number one. Without Einstein, we wouldn't have modern technology, including the GPS! Heck, Einstein even managed to solve the Tea Leaf Paradox in his spare time before he died, and this was a mystery that eluded many of the greatest minds of the past several centuries. For any history buff, he is the GOAT scientist and well deserving of being synonymous with genius 👑🐐.

[@marcmillis3867]

You're a clown. Einstein is a joke. It's all a clown show. A 6 years old kid with a coil will destroy modern physics.... The coil will store energy & give it back to you later on....space is physical. The collapse of space -time & all the non-sense. The aether is defined by 1 positive tensionZ & 2 negative pressuresXY. Hasta la Vista....

[@Pegfoxx]

You might be right about my mom pulling gravity, because her high school photo was an arial photograph LMAO!!!

[@brucelytle1144]

I didn't think I had time for this, but it pulled me in, with the momma joke! 😅

[@tinytim71301]

Brilliant work. Thanks! Geaux Louisiana.

[@fulgor9393]

I like all your videos but this was the most thought provoking one ever, thanks.

[@bcjammer]

gravity, like evolution, is just a theory. I encourage anyone test it…just make sure you do so 3 stories or higher

[@gericbabcock7145]

Being a total lay person watching videos, I haven't grasped how warp drives can allow propagation in space faster than light, but space distortion (gravity and gravity waves) can only propagate at the speed of light.

[@doclewis8927]

The concept of gravity altering time is best summed up in the movie "Interstellar" (2014) with Matthew McConaughey. That movie spawned several scientific papers that won some notable prizes and were proved to be correct. It's amazing, especially if you like science and astrophysics to be specific.

[@vejet]

If I understand gravitational time dilation correctly, while time may pass slower for someone closer to a strong gravitational source, that doesn't actually mean the person experiences a longer lifespan than someone further away from the gravity source. Suppose every aspect and variable of the system were identical; the same person would live exactly the same amount of time in their own experience at both locations-say exactly 80 years. However, to a distant observer, it would appear that the person on Earth lived slightly longer than the person on the Moon due to the slower passage of time near the stronger gravitational field.

[@N30NR10Tx]

I somehow didn't expect a "Your Mom" joke in a video about gravity.... Well played.

[@Barry-sx4gj]

Thank You for your time spent on this Video.

[@frankhaugen]

It would be so great if we could bring Einstein back just to show him how 100 years in the future, we are still confirming his theories and applauding his brilliance. Also would want to bring Feynman back as well, he's such a great simplifier of complex things

[@supercommie]

Escape velocity is a really bad way to explain black holes, the real reason you can't escape a black hole is not because you can't travel fast enough in space to do so, but because in order to escape a black hole you need to literally go backwards in time. Time and space switch places below the event horizon.

[@KaiVieira-jj7di]

Escape velocity is worse than a bad way - it's wrong!

[@guypainter]

It's wrong, but not for that reason. Velocity is a vector quantity, but for gravitational escape, direction is irrelevant.

[@KaiVieira-jj7di]

@@guypainter This has nothing to do with velocity being a vector - the concept of escape velocity doesn't apply to black holes.

[@marekstanek112]

As gravity is not a force, it doesn't actually work ... literally ANYWHERE.

[@MarksGamePlayPage]

it doesn't have to work, everything comes to it. interesting.

[@MFrrFrr]

New theory: Is it possible, that spacetime is so curved in the black hole and especially near singularity (twisted into a huge knot), that path becomes "almost" infinite - so it's impossible to reach that dead end point and therefore singularity doesn't exist? For example expansion of the Universe (the fabric of spacetime) becomes bigger and bigger, so the "knot" can keep twisting and twisting? How about that? 3 beers and a new theory has born, and we solved the singularity problem :D

[@plinble]

love the video. all the groundwork for flying saucers. A too sudden reveal might be too much for some.

[@HeruUrAusar]

The singularity says, "You can't win. I have the low ground." The singularity says, "I'm inevitable." The singularity says, "Resistance is futile."

[@scisher3294]

I can not unsee: “Doesn’t work HERF” from the thumbnail 🤭😂

[@marcsh_dev]

Ohoh, the twins road! I feel showing a road that runs up at an angle would show that so well, but maybe that wasnt a good spot for that visualization. All great stuff

[@MayBeSomething]

1:25 Absolute SAVAGE!

[@fredericklockard3854]

Graviton - hold my beer.

[@davidpalmer4184]

A wise man said "Time is an illusion, lunch time doubly so..." It's a shame he passed away (Sort of ironic too)

[@lundsweden]

@@davidpalmer4184 He still exists. The past still exists- T.H

[@dislikecounter5191]

On a k hole trip felt like I was in a black hole falling through space time. Kinda cool and scary at the same time

[@theoriginalkyttyn7724]

Time is not existential. It is a tool without substance, only purpose. Your past is your future is your present.

[@ashleyobrien4937]

you're half right ... gravity doesn't work HERF, electricity does....

[@kevbis4231]

Was not expecting mum joke 🤣