# Which Way Is Down?

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• Published on Nov 2, 2017
• BRAIN CANDY LIVE www.braincandylive.com/tickets
THE VSAUCE CURIOSITY BOX: www.curiositybox.com/
my instagram instagram.com/electricpants
Thanks to Eric Langlay (thexvid.com/user/ericdraven30) for producing, editing, and animating this episode with me. Thanks also to Henry Reich (thexvid.com/user/minutephysics) for his advice and guidance.
Universe Sandbox² : universesandbox.com/
Mass vs weight:
en.wikipedia.org/wiki/Mass_versus_weight
Great Veritasium video: thexvid.com/video/_Z0X0yE8Ioc/video.html
two other great videos: thexvid.com/video/6ccIjRwYO9U/video.html and thexvid.com/video/aCqQzrPCcFM/video.html
baseballs coming together under gravitational attraction can be simulated in Universe Sandbox 2. More math behind it can be found here: www.reddit.com/r/explainlikeimfive/comments/2vyxl7/eli5_will_two_baseballs_a_foot_apart_in_deep/
Weight to mass (on surface of Earth) convertor: www.convertunits.com/from/kilograms/to/newton
pencil and Earth falling numbers: www.quora.com/When-we-drop-a-pencil-the-earth-attracts-it-and-it-seems-that-the-pencil-is-falling-towards-earth-Why-doesnt-the-earth-come-up-towards-the-pencil
NASA HD footage: archive.org/details/NASA-Ultra-High-Definition
Buoyancy: en.wikipedia.org/wiki/Buoyancy
Earth’s spin and its effect on ‘down’: www.freemars.org/jeff/Earth/down.htm
The measurement of Earth and its gravity:
en.wikipedia.org/wiki/Geodesy
en.wikipedia.org/wiki/Physical_geodesy
Movement of Earth’s center of mass:
www.aiub.unibe.ch/research/slr_data_analysis/estimating_the_geocenter_and_earth_rotation_parameter/index_eng.html
www.massentransporte.de/index.php?id=307
you get heavier before you get lighter as you descend into Earth: www.reddit.com/r/askscience/comments/4qfl52/do_you_get_lighter_the_further_underground_that/
vertical deflection:
en.wikipedia.org/wiki/Vertical_deflection
practical uses of measuring gravity: en.wikipedia.org/wiki/Gravimetry
geoid:
en.wikipedia.org/wiki/Geoid
oceanservice.noaa.gov/facts/geoid.html
thexvid.com/video/jOQl8DRzQks/video.html
Hammer and feather drop on moon: nssdc.gsfc.nasa.gov/planetary/lunar/apollo_15_feather_drop.html
Why things fall at the same rate: www.quora.com/If-an-object-has-more-mass-then-its-pull-on-earth-would-be-greater-than-an-object-with-less-mass-and-therefore-should-fall-to-earth-faster-Why-do-objects-of-different-mass-fall-to-earth-at-the-same-speed
Wolfram Alpha cone geodesic tool: demonstrations.wolfram.com/ConeGeodesics/
General Relativity:
simple animation showing geodesic on cone and how it causes motion DOWN in space: thexvid.com/video/DdC0QN6f3G4/video.html
GREAT pbs spacetime video (watch the whole channel): thexvid.com/video/AwhKZ3fd9JA/video.html
www.av8n.com/physics/geodesics.htm#sec-straight
www.pitt.edu/~jdnorton/teaching/HPS_0410/chapters/spacetime/
www.einstein-online.info/spotlights/geometry_force
time and gravity:
thexvid.com/video/jlTVIMOix3I/video.html
thexvid.com/video/1ENkP0h8nAg/video.html
thexvid.com/video/gcvq1DAM-DE/video.html
tests of general relativity: en.wikipedia.org/wiki/Tests_of_general_relativity
RECOMENDED BOOKS:
great introductory texts:
“Relativity Visualized” by Lewis Carroll Epstein www.amazon.com/Relativity-Explained-Classics-Science-Mathematics/dp/0486293157
There’s also this PDF that takes Epstein’s diagrams into more detail: www.relativity.li/uploads/pdf/English/Epstein_en.pdf
“Relativity Simply Explained” by Martin Gardener www.amazon.com/Relativity-Explained-Classics-Science-Mathematics/dp/0486293157
great intro to the math of general relativity:
“A Most Incomprehensible Thing: Notes Towards a Very Gentle Introduction to the Mathematics of Relativity” by Peter Collier www.amazon.com/Most-Incomprehensible-Thing-Introduction-Mathematics/dp/0957389469/
Requires some background in relevant math topics (see above) but very very good:
“Spacetime And Geometry: An Introduction To General Relativity” by Sean Carrol www.amazon.com/gp/product/9332571651/
• Entertainment

• bobs'r'vegana 19 hours ago

six and a half flat thousand earthers disliked this video

• Developing Mind 20 hours ago +1

And this concluded one of the most valuable channels on TheXvid.

• Deez Nuttz 20 hours ago

So you're saying that if you jump out of an airplane you're not going to feel it

• nosense 23 hours ago +1

R.I.P in peace Michael

• DreamZz Reality Day ago

Is this how to basic?

• ZimiZE Day ago

• Ivan Bok Day ago

13:52 thank me later

• Bruh you got me thinking if I was actually born

• Current Curiosity Box 2017

• backlash bassin Day ago

Me: Hey Michael whats up?
Michael: which way is down?
Vsauce music plays
Me: oh no not this shit again.

• Ora nge Day ago +2

Did vsauce just pirate the game?

• talha ehsan Day ago

coughs black blood. That clogged my throat

• baccon eatter Day ago

what I can drop a pencil a trillion times form 6ft earth will go up by a proton so ive already dropped a pencil 300,000

• Braeden Martin Day ago

thexvid.com/video/rd1Rm-oXlGs/video.html watch to increase your IQ

• James Luqqy Day ago

When you realize time travel is real. We are moving through time forward one second per second. Just think about it

• Killer Gamer Day ago

I guess TheXvid red shows what type of a person you are. If he really wanted to educate all of us he would still be uploading new videos for us not just TheXvid red. I don't speak for everyone but I definitely feel that at least for this channel at first he wanted to give information to all and then TheXvid red comes around and it's f*** you throwing everyone else who can't afford it under the bus who actually brought him to this point and he's f*** you give me money although I could definitely be wrong it's just how I feel

• lthammox Day ago

Amazing vid!

• TouchyBanana Day ago

fucking sellouts

• Bill Cunigan Day ago

At the time marker of 12 :41 this video made my day I have wondered what the earth was really shaped like since I was a kid thank you.

• NickMurph Day ago

Michael: It's got moving/changing insides...
Me giggling at 2 in the morning: ooooh i love it when you talk dirty to me 😍

• Will Mattes Day ago

Moons haunted

• Jake Shealy Day ago

I liked "the earth weighs 180lbs on me" shot. Noice!

• Dark Rebel 2 days ago

The way down is this
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• Srokasodo 2 days ago

I miss when he uploaded these videos :’)

• chasebh89 2 days ago

12:51 how do you have so many tabs open

• Next video: 5 is a multiple of 1. Or is is?

• MTRX 2010 2 days ago

He said horizontal slapping.

• Jason McFarland 2 days ago

Down is at the enemy's gates

• My mind was blown.

• Kei _ 2 days ago

scientists scream: everybody is going away from each other, soon we wont see stars in the sky.... Meanwhile: everybodys gettin in a same spot: great attractor... wtf

• lemnoch 2 days ago

Just watch the channel D!NG if you want to watch Michael be Michael. Same shit different channel.

• Bambam0386 2 days ago

Horizontal slapping

• Buddy Butt 2 days ago

Up

• Reed Pearson 2 days ago

“First things first let’s turn the sun into a black hole” vsauce

• PhantomVirus 2 days ago +2

I keep telling everybody should move on to DING/DONG. Some do. But not us.

• Crack's Ex Acc. 2 days ago

Wooooooow... one of the best comments on this channel

• Sons of Anarchy 2 days ago

I just wanted to know WHICH way is down.

• Hl_Scientist 2 days ago

I was expecting a mom joke

• GoFuck Yourself 2 days ago

How fast is time?

• Killa Buds 2 days ago +1

time travel is pulling me down the comments 2019

• Angela D'amico 2 days ago

Hey how to basic Michael here

• BillyBoy Buster 2 days ago

So if you were in minecraft space and you were orbiting the theoretical spherical earth then you would just be building up fall damage since you’re just falling

• Thomas Pursglove 2 days ago

im just saying, i really need to know the background music at around the 10:00 mark

• Vorzky 2 days ago

Sounds like copyright free elevator music

• Sam Weaver 3 days ago

Down is everything below you from your perspective. So if someone is upside-down and there is a bystander, they are actually both upside-down and right-side up because of both of your perspectives.

• SkippitySkoop925 3 days ago

Vsauce: first of all, WHATS A COLOR?

• SkippitySkoop925 3 days ago

*when someone tries to weigh air*

• The theory of mass you gave is inertial mass not gravitational mass so

• SuperCrazy Gamer 3 days ago +3

the entire first minute of this video gives me thousands of emotions that aren't even real

• Abid Fauzan 3 days ago +1

wait is him howtobasic

• Detuk Rjerbs 3 days ago

Fuck Can you chill the shit out hmyour fuckn buggin me out

• SCRUMB 3 days ago

Looking at the thumbnail and looking at the title, makes me feel retarded

• Clorox Bleach 3 days ago +1

*T I M E T R A V E L*

• Joshua Jowers 3 days ago

"Its an AIR-ror"...His puns are so subtle

• EloquentTroll 3 days ago

Need to find my shotput shot now.

• jaden bailey 3 days ago

You are a fucking retard u fucking ass hole peace of shit and don’t mind my spelling

• Jaspreet Takhar 3 days ago

whats with the random music playing over top of him speaking near the end last quarterish. couldnt hear shit lol

• Junior Gabe 3 days ago

I will destroy earth with a pencil.

• Jay Starr 3 days ago

0:44 A cop asked to see my drivers license the other day and this was my response.
Was I wrong?

• Helyus HD 3 days ago

This is soooo fascinating!!!

• Miss Snick Snick 3 days ago

Down is down
*simple*

• Eric TheRed 4 days ago

2:40 who or what was on that hammock...i bet a black hole was involved

• Chi Phan. D 4 days ago

Hint: if you make long 100 meter straight beam, it still bend, that count on the gravitation forces and the beam strength thin or thickness. If you make a beam that has no bend forces, like straight line in computer
Think they like the start point beam to end point beam are going out space

• Unsupervised Potato 4 days ago

He said he put in a code to get the game for free, is there a way
i can do that too? if i find the code?

• Muzzy 4 days ago

but guys his youtube red show is really REALLY good
and then there is vsauce 2

• Maverick3334 4 days ago

#GotMass ?

• Ur down is my up and a half

• Falling Star 4 days ago +2

I've been watching too much vsauce tonight, now I'm questioning what I really know

• k y 6 t e 3 days ago

Deadass bruh i learned that im floating while in bed rn 😨

• Volstx 4 days ago +3

I miss the old VSauce... Michael here... :(

• WikiTay 4 days ago

nice

• Isaiah Armour 4 days ago +3

Which way does down go? Does it have to do with time travel? First, let’s turn the sun into a black hole.
Never stop being Vsauce, Vsauce.

• Oscar Osorio 4 days ago

Fake ..flat earth

• Team Nirn 4 days ago

2:58 close your eyes and listen

• Nameless Niiick 4 days ago

"AIROR" AHAHHAAHHAHA

• Selene Duenes 5 days ago

I always did think if you dig deep enough you would reach the opposite side of the world

• OVERATED ASIANS 5 days ago +3

For some reason... the background music is more relaxing than 3 hours of the coconut song

• CedrickPlayz 5 days ago

• Taylor Haws 5 days ago

5:35 Did you say that pounds are units of mass and not force? because that is incorect. pounds are units of force, and slugs are units of mass in the same way that killograms are units of mass and newtons are units of force.

• TheReal Hardcase 5 days ago

20:36 meow

• Bick Barl 5 days ago

13:52

• LotionMan 5 days ago

the flaw with the cone model is that time doesnt loop. if you follow the cone youd come back around and travel up the geodesic.

• ca5ualm3dia 5 days ago

they tell you up is to the sky down is the earth , i say down is away from the strongest gravity , up is to it !!!

• Nick Korkodylas 5 days ago

God dam it, Michael! I just asked what's up!

• Jag älskar dig

• ZOMBIESALWAYSLOSE 5 days ago

Me and my friends were having my bday party last year and we saw this video. We all began questioning existence for the rest of the night. Thanks.

• yaoub hanna 5 days ago

rip vsauce michael
died actually making a good deal and some money so you guys should just relax and pirate it all

• JD 3 days ago

sell out.

• Zyngarde 5 days ago

9:51 It's actually quite noticeable

• Gabe Riehman 5 days ago

so according to this logic if there were enough pencils above the earth the earth would be drawn to the pencils and not the other way around

• Mergen Nomo 5 days ago

Down is sideways

• MattVega 5 days ago

The music is so damn distracting !!!! Who ever edited this shit really fucked up. I can’t even finish watching this shit.

• Deus 5 days ago

I see 1 video, i subscribe.
Go to chanel
Unsub fast af

• Kaiser Wilhelm II 6 days ago

6:39 how he get a pic of that

• t i m t a m s 6 days ago

His iq is beyond

• Cosmo Mangiocco 6 days ago

No one:
Vsauce: WhiCh wAy iS DoWN

• THE DIAMOND TV 6 days ago

3:00 going to let you think

• BluPlayer 6 days ago

That background music sounds so much like tasty planet's tune

• Yeetus Pacitus 6 days ago

How does he make a 26 minute video trying to explain which way is down

• WOBERT _ 6 days ago

First things first
Lets turn the sun into a black hole

• Jerritto Knight 6 days ago

4:037

• cuzim batman 6 days ago +1