How Weight Changes With Location

[@truthsmiles]

Former pilot here: At the time of the experiments, the aircraft were almost certainly on autopilot (based on the observed

[@atakan5617]

Thank you i needed this for a school project

[@truthsmiles]

Yeah, sorry if I gave you cancer with my wall of text.

[@DiThi]

Actually I think it was very informative, thanks

[@DiThi]

+musclecar rocklover: That's called a hypothesis. If many repeat the experiment (like Cody's) and agree with the hypothesis, then it's upgraded to theory. It also matches with currently accepted theories, so it's highly plausible.

[@Pilgrimman007]

Those are good points. I wonder if his sample period for the measurements is greater than the phugoid mode period for the aircraft...

[@theCodyReeder]

So the blank space at the end explains why this took so LOOOONG to upload. It seems the video clip of Edison's phonograph was corrupted or something... fortunately its an easy fix even using KZbin video editor so it should go away in a few hours, until then no need to watch it after 17:30. I suppose I could take the video down and add a bit of me explaining why mountains dont add much gravity and then re-upload tomorrow morning. but I was going to make another video on that topic and this video was long as is.

[@thermophile2106]

Cody'sLab I'll watch it, just for the minutes.

[@caseynewland2614]

lol read the creators comment before bitching about the problems within his video, could find a decent explanation doing some BASIC research xD

[@MrSamfisk]

I watched it, hoping to find a secret.

[@nickmaynard5909]

Noice

[@andydolezal3808]

I think youtubers can pin comments now, maybe consider pinning your comment?

[@RWBHere]

Thanks, Cody. That measurable weight difference for traveling East or West is a beautiful proof that the Earth is a rotating sphere.

[@TheSniper9752]

RWBHere, Surprised that the Flat earth morons haven't swarmed this comment.

[@NeonTiger]

I'd have loved to have had a presenter like you when I was in school. Nothing like a real-world science educator with real passion and the ability to explain complex scenarios in a simple way to really kickstart the brain. Much love, and super interesting stuff as always!

[@SpecificLove7]

I never considered that before, thanks for opening my awareness.

[@bb2slow780]

The world is Cody's Lab, love this channel.

[@daledurbin2354]

So, If I were to buy Gold by the ounce where would I get the most gold for my money?

[@ur_cowboy]

Buy it near the equator then sell it at the poles.

[@canaan5337]

Dale Durbin the summit of Everest but I doubt there's a guy up there selling gold so you might want to try a city that has a high elevation like Denver and then sell it in Death Valley but I still don't think that would be a way to make money because you have to transport it from Denver to Death Valley so unless it's quite a bit of gold the difference in weight probably wouldn't cover travel expenses

[@frogbear02]

but.. thats the opposite..

[@samlolly6364]

caesium

[@stevenswenson7041]

hmm buy high sell low when paying by the mass-force unit

[@octoparrot36]

I'm so happy that schools are receptive to your abilities to teach students about science!! Awesome. So happy for you Cody!

[@toucaninterieur8011]

I'm just realizing how big the USA are relative to European countries. That's 2000 miles from Utah to New Hampshire. With that distance, you could go from Paris, France to Damascus, Syria, effectively crossing 18 countries and 2 continents.

[@twent19]

Erik Jorgensen That's one of the longest in state distances you could choose...

[@Don1960]

That is air miles road miles it is more like 2500 miles. I drove from Port Newark New Jersey to Salt Lake City every week for 3 years.

[@S3l3ct1ve]

The difference doesnt look that big on the map

[@sillykristy]

Farthest distance by road that I know of in the US is: 3380 miles from Bellingham, WA near the Canadian border, to Miami, FL. Getting to Bar Harbor, Maine from Bellingham is similarly far at 3225 miles. From Bar Harbor to San Diego, CA, is also similar at 3275 miles, or to Lathrop, CA (where I happen to be today) from Bar Harbor, is 3345 miles. Any of these trips are a long drive :)

[@KeystoneScience]

Hey Cody, was that the kind of metal that goes back to its original form when slightly heated? ( in your intro I mean )

[@fyxosk4995]

Keystone Science I believe this is made of nitinol

[@PianoRootsMusic]

Cody seems like the type of guy who upon being asked by security why he has a suspicious block of metal, would pull the security officer to the side and spend twenty five minutes explaining the experiment.

[@ronakbhanushali1238]

lol dude XD

[@jomanout5866]

You do such a good job, Cody's Lab is the best!

[@gildedbear5355]

This video is why I dislike grams. Grams, and of course kilograms, is a measure of mass which does not change unless you add or remove material. However, scales that are labeled in kilograms aren't measuring mass, they are measuring force, Newtons, and are calibrated to assume a specific acceleration due to gravity. So SI people, stop complaining about the US using "outdated" measuring systems and start using yours correctly. 8p (my annoyance is real, but my judgemental attitude is exaggerated.)

[@sillykristy]

Super Nerd! oops wrong channel, this isn't Because Science!

[@Android811]

This has nothing to do with the units. I have scales like this that can display in grams, ounces or newtons at the push of a button.

[@asciisynth]

Amazing, this is so well thought out, and you just keep answering your own interesting questions!

[@patrickradvanyi6390]

Knowing Cody I'm surprised that he didn't build his own plane for this experiment.

[@jakeyaboi6824]

I get so happy when I see you have a new video up.

[@jeshuagustafson9641]

I live in the salt lake City area, and I see my house in the video, I didn't realize we lived so close

[@IcelandicGoblin]

I love how Cody's fashion style is slowly turning into my old woodworker teachers style, i love it.

[@reddescendent389]

I love the videos I didn't really like science untill you channel because of bad experiences with teachers in school but you have made it interesting and cool thank you

[@jackcari]

Red Descendent You are welcome

[@masonp1314]

Woah! Caught an episode right after it's released! Huge fan Cody! Keep up the great work!

[@deankruse8751]

cody have you ever noticed how you look like the shaggy character from the live action version of scooby doo

[@blademasta3650]

Dean Kruse LULLULULUL

[@MrJJandJim]

Dean Kruse I once met a person who legitimately looked like live-action Shaggy. He could've been a stunt-double, since his voice didn't match.

[@raznj1]

its him he played shaggy if you watched his older vids he talked about it

[@vespill708]

can you link one

[@robloxlover123456790]

Dean Kruse Check out my pecks man!

[@odranoelmusicremixes8453]

i swear i love this guy. never misses an opportunity to do some science!

[@yootoober49]

in the outtakes, cody releases bees into the cabin of the plane.

[@nickbrandt2788]

I almost didn't watch this one because I thought it sounded boring. Of course, I was wrong. You never fail to make things interesting.

[@unpairedelectron2886]

You visit so many places Cody! :D

[@danksinatra6129]

Unpaired Electron Indeed

[@FunnyPig]

Great video😀

[@villangmail]

Are you sure the mantle is less dense than the oceanic crust? I thought liquid rock was denser than solid? also, wouldnt the crust have sunk into the asthenosphere if it is heavier?

[@Nuovoswiss]

The difference in weight due to rotational motion around the earth was what really made this video for me. I forgot about that effect, and was surprised it was as large as it was.

[@Playncooler]

I propose an alternative title for this video: Cody and his pet cube.

[@mrclucker1969]

This was like a Smarter Every Day episode! Not complaining as it was very informative.

[@ZorelloGamer]

Hey Cody the video cuts out at 17:43, the rest of it is dark

[@Gameboygenius]

I'm pleased to see that Cody understands the gravity of the situation.

[@flypole1255]

People, who want to lower their-weight, could climb mountains.

[@TheEyesOfNye]

I wonder if their weight would change more due to burning calories or change in elevation.

[@freddiescowen5023]

TheEyesOfNye likely the calories burnt. but was that a serious question?

[@TheEyesOfNye]

Yes. I assume the answer would depend on variables like mountain height and body weight. Now that I'm thinking about it I think most of the weight would be lost from water. Especially if it is a hot day.

[@anton2699]

So here is an interesting experiment. Weigh yourself and the tungsten block at the bottom of a high mount Everest and then at the top again. So things to consider is the amount of food you eat and drink. Very roughly for every ml of water you drink you gain 1 gram of weight and that is just the water. But when it passes through the system it would be subtracted again minus the amount that was used by the body. So for the sake of sanity lets sy you weigh yourself at the same time every morning after your first bathroom business. Another problem would of course be getting a scale that accurate to show the difference up mount Everest. Of course you can always pick a mountain you could climb in a day and try the experiment with very constrained things like no water or food intake and have somebody else fly the accurate scale up and down the mountain for you. Then you should see a difference in your body weight just on the amount of energy you wasted.

[@sergey1519]

but aren't you have air, that more dense near to sea level?Probably this will affect more on your weight.

[@Donk3yxKong]

Always love watching your videos Cody!

[@abbyamberhere]

"Flat Earthers BTFO by local man with a scale and a cube of tungsten."

[@ianknight819]

You are awesome Cody. I need to try this next time I fly to a different state.

[@chadatchison145]

How much does atmospheric pressure and density (humidity) effect the weight if any?

[@theCodyReeder]

should be in the sub milligram level, might be more for say packing peanuts though.

[@chadatchison145]

Right on, thanks for the reply.

[@yotamdelayahu93]

hey cody have you maybe thought of making this into a small over time series like every time you go somewhere for vacation or work take the cube with you and record its weight in different places. for example if you go to the dead sea in Israel (lowest place on earth) The difference should be quite large.

[@Alyson_The_Meta]

lol! green witch haven picture looks a bit silly. the original was better i think

[@Pr3D47OR]

I'd be more concerned about how air pressure affects the (likely sealed) sensor's in the scale. Might be worth checking in the vacuum chamber.

[@locouk]

Very interesting, I've always wondered about the weight of objects at different altitudes. Did you have any problems getting the cube on the plane?

[@rwst4189]

8 minutes of dark Cody?

[@picsordidnthappen]

I love how you come up with these perfectly suited inexplicably acquired objects. "Let's see, what would be the ideal thing to do this experiment with? Oh yea, I happen to have one of these" - produces cube - "It's hard, small enough and just about perfect in any other respect".

[@samnassar6182]

Question: can you write the plane tickets off as a business expense for taxes? Also freaking knew this would be the video.

[@MegaMetinMetin]

Sam Nassar they was paod

[@samnassar6182]

LEXUS-RX300 yeah I realized that haha. but still I wonder about the exspeses involved

[@MegaMetinMetin]

***** in return of speaking they cover his expenses

[@samnassar6182]

LEXUS-RX300 I mean like the cab and luggage. in tax law you can count almost anything

[@BigTimeZergRush]

@Sam Nassar I dont see why not. If you are driving to a business trip you can count the mileage of the trip as business expense. So if you buy a plane ticket for business, then it seems completely fair to right it off as a business expense.

[@OnEvenKeel]

Nice work, as usual, Cody.

[@brucebaxter6923]

Has anyone shared this with a flat earther yet?

[@atakan5617]

lol

[@kolelokaram8541]

Bruce Baxter even if they have, it would not even matter. There people do not know how to accept the facts.

[@DiThi]

I've thought about that, but I think it's too abstract for them. Maybe if someone says that there's no gravity difference when you go up. I just asked how an altimeter works, because it can only work if air is held by gravity, it wouldn't if it's hold by a dome like they claim.

[@brucebaxter6923]

Hristin Andonov Yep, that does happen. But it s also as interesting how many people can't form a coherent argument and simple experiments to show the earth is round and the stars are far far away

[@DamianReloaded]

It'd be pointless. To all accounts they simply don't care about experiments or logical thinking. They are the modern version of religious zealots. They are often schizophrenic so even if they wanted, they wouldn't be able to.

[@crashwg]

I wish I had known you were in NH just the other day. I live in Concord and both work and go to college in Manchester. When I saw your last video mentioning Manchester my brain defaulted to England.

[@drewdriver9130]

do not be fooled this is a fake cody the real cody died in the mineshaft

[@2adamast]

That's what the fake Cody want you to believe

[@SuperSMT]

Craig helped him clone himself

[@davidcaruso9123]

Great video Cody! A lot of good scientific data makes for a fun and interesting video👍🏽

[@xelirate2669]

wtf is that ending??

[@tablespoon6969]

Clorox Bleach I'm a cow.

[@thomasmaslany1914]

Clorox Bleach hey looking good but you taste better

[@theCodyReeder]

I made a post about this

[@shanetrammell2328]

Cody can you do a video about the beta decay of tritium

[@kennysboat4432]

F.B.I CLOROX BLEACH IMPOSTER OF CLOROX LAVENDER AND OTHER CLOROX PERSONS

[@pluto8404]

Im going to miss him. rest in peace cody.

[@JerryAsano]

Black screen starting from 17:43 ?

[@philnic]

Yeah I wonder what's up with that

[@Shepard_AU]

There's a post in comments from Cody about that, it's to do with a corrupted video and that it should fix itself in a few hours.

[@noreason2701]

This post was clearly before Cody made that comment, learn to fucking read kid.

[@Shepard_AU]

Who are you talking to?

[@thermophile2106]

Jerry Yuan I

[@NWOization]

Passenger sits down beside Cody on plane. Cody pulls out small Tungsten cube and sets it on a small device with a flashing electronic display. Passenger nearly has a heart attack. Cody calms them down and gives a brief explanation of everything. Passenger is relieved, and bravely asks to touch the cube. Cody says sure. Passenger touches cube. Cube consumes passenger. Cody smiles. Cube got denser.

[@govindarajd3248]

Lol

[@scishowfan2.050]

i wish i could fund on patreon but im to young😧 great videos

[@wuluis]

SCI SHOW FAN 2.0 too*

[@jacobmortimore]

SCI SHOW FAN 2.0 lol sci show fan XD getting learnt. if ur too young to donate , then you are too young to play fallout

[@llnoobgamingll]

ohhhhhhh!

[@craigmooring2091]

@ Luis Wu How did you get back from Ringworld?

[@blademasta3650]

Ronathon 69 your talking about age when you put "XD" in your sentence, and its xD* not XD...#GetRekt

[@ArcticMayhem]

You should put the cube and scale in a vacuum chamber at different altitudes to eliminate the differences in air pressure causing bouyancy and affecting the readings.

[@magiclocks9206]

Too much vibration in the plane leading to great inaccuracy. Next time go up in a hydrogen balloon, but take a deep breath on the way up. The air gets pretty thin at 30k feet.

[@harryragland7840]

A weather balloon approach is a good idea. Cody could also go up in a hot air balloon. They can easily go up 20,000 feet but it's very cold and you need to carry oxygen. On the plus side, it would be a killer video.

[@doubledarefan]

No need to ride the balloon. Just set up a rig that will set the block on the scale at regular intervals, say, 6 times, ~4 seconds apart, every 10 minutes, while a camera is recording it the whole time (may need to set the cam on a low frame rate to save memory). When the balloon pops, a drop sensor will trigger a mechanism that will deploy a parachute.

[@AlbinSandell]

Forgot to say, Congratulations to 1 million subs!

[@Obi-WanKannabis]

If the plane is going the same way the planet is rotating it'll be lighter, if it's going the opposite it'll be heavier.

[@joea1382]

Obi-Wan Kannabis What?

[@Obi-WanKannabis]

The faster you are going around the planet the less you weight. If you go against the rotation of the planet you're technically going slower. So you weigh more. This is why you weigh more at the poles, because your speed is closer to 0

[@OneOfDisease]

Obi-Wan Kannabis seems like BS but should be easy to test. I would think centrifugal force would be higher on the equator.

[@Obi-WanKannabis]

How is it bullshit? It's simple physics. Yes, you are lighter at the equator.

[@rdizzy1]

You would also weigh more at the poles because you're closer to the center of the earth.

[@aboriani]

Cody, I haven't read all the comments below, so sorry if someone already pointed it out, but while flying at cruising altitudes (above what we call transition altitude, 18000 feet in U.S.), all airplanes altimeters are set to 29,92inHg (called QNE). It means that if the plane is traveling from point A to point B and is there a difference in barometric pressure between both points, even if the altimeter is reading 20000 feet all the time, the airplane height will vary according to said pressure difference. As a general rule, flying from a high pressure to a low pressure region, the airplane will fly lower than its real height. So what you found out, that the plane seemed to fly on a descending path might be true.

[@assembledsugar6587]

lit

[@themaximizier4653]

Bossotronian Pineapple 👌😂👌👍

[@Florida_Pipe_Smoker]

I really enjoy your videos. You are awesome.

[@duncancollins442]

Respond and i will eat my foot

[@kvltman782]

Ok. Have a nice meal! :)

[@LtGameboy]

Connor Collins make it a video on KZbin and I will sub to you

[@LtGameboy]

I subbed to you

[@Antonluisre]

LtGameboy You're his only sub, lol.

[@LtGameboy]

now he has to eat his foot

[@101wierdos]

If you were in NH I am extremely sad to have missed your visit. I actually live in Concord, so #NewHampshire Represent!

[@abdulr5320]

Actually i was wandering about this for quite long time . Thanks

[@Maiu13]

Also there is a weight difference of about 0.5% from weighting something on the poles to weighting something on the equator. That is due to the higher centrifugal force at the equator. Maybe that also played a small part in your measurements.

[@ytrewq6789]

Regardless of the cost of past experiments, They did on this subject?, You just did the same thing with equal results!... And with a whole lot less!... Thank you Cody!, For not just explaining things the way they actually are?, but for taking the the time to do as well!!!... Greetings from a subscriber from Canada!...

[@rolandpiche165]

GREAT Video Cody! Certainly gives me more food for thought about my study. I had considered making note about the earths soil type and such along with barometric pressure, humidity, and (only thing I didn't hear you mention) the moons location. I didn't believe that the rocks would make such a difference. It looks like you might have done some research before doing this. Considering the levelness of the scale (as that changes the direction gravity and the mass is being applied to the load cell in the scale) fingerprints (not generally noticeable over single tests but my state certified class II weights can fail if touched by hands too often) and air pressure from the displacement of the weight, and all the other things almost no one thinks of but they do make a measurable difference. I'm going to have to take some time and note all your data and see how it lines up with what I've gathered so far and everything I find going forward. Thanks again for all the info, it will certainly play part in achieving more accurate results. Again, if you ever need anything scale related, holler at me ;) Maybe once I get more established I'll donate some precision equipment to ya.

[@mustaphaalsakka1697]

The weight fluctuations on the airplane are most likely due to the fluctuations in the vertical acceleration (apparent weight in an accelerated frame of reference). The averaging is a totally fine idea and the experiment looks like a big success. Nice one cody

[@leejn3493]

EVERY SECOND. Mr. Cody has suffered a lot for us. Thanks for the vid :D

[@timoschneider5915]

Great Video. Love your videos. Greetings from Switzerland

[@fitzyboy4591]

I live a few miles away from the airport Cody landed at! GO NEW HAMPSHIRE!!!!!!!

[@ryangilman5593]

Cody i saw you in the Manchester airport (new Hampshire airport) but im really shy and i didn't know if it was actually you so i didn't bother because i didn't know 100% if it was you but thanks Cody for the awesome content wish i could have meet you and gotten a picture

[@f.k.burnham8491]

When I was with a postal scale repair tech, he told me the weights he used for calibration had to be re-calibrated 4 times a year, as the weight changed with the seasons.

[@billywhizzy]

Another factor which should be included in the data is the accuracy of a weighing instrument and it's zero point drift based on the ambient temperature.

[@VoidloniXaarii]

wow! so interesting! Thank you for even managing to turn a trip into an experiment. I didn't fully get the whole getting easier/heavier based on east-west, would be great if you did some more (smaller scale?) experiments with that effect.

[@tgrag7293]

i wonder how smart your son would be , with all the knowledge you know and all the activities you do ;)

[@stevemiller9135]

Cody, do you think it's not about location so much as a change in air density and high or low pressure systems? Have you ever seen those old school barometers that are just made of glass and filled with water? The air pressure will force water up the little goose neck. Maybe try an experiment with your big rusty vac chamber and a small humidifier? I think that would be a cool experiment to try.

[@FennecTECH]

Happy 1 mil cody :D

[@pirate2998]

Love your vids. Finally found channel with content other than stupid pranks. Finally any added value.

[@scienceaddict77]

One way to cancel out the effect of the plane accelerating would be to use 2 identical scales and masses, and essentially make a balance. One you tare with the weight on it, the other without. The scale you zeroed with the weight on it will tell you the error due to acceleration, and you subtract that from the other to get the weight of the cube at altitude.

[@plains12]

Hey cody I opened my first rock and it was the first time i've ever opened/Chiseled a rock Surprisingly I found copper wasn't worth anything which was fine but it was difficult you inspired me to be a geologist

[@DirtyRobot]

Hey Cody. You should have used the gyro on your phone to monitor the plane's movement. You would then see the relationship between the scale's reading and the plane's movement.

[@bobharper565]

Cody you can go on the compass app and swipe right and there's a flat thing

[@SenorEscaso]

The oceanic crust thing is really interesting. Somehow, I've never thought about how the Earth isn't a consistent density.

[@billkeithchannel]

You can't move a digital scale around at all or it will not be accurate. Those scales work by having a bar with wires wrapped around it. the bar bends with weight (and temperature and vibration) and causes an electrical change that a microchip compares with the comparative values for that bar bending compared to the exertion of the weight.

[@dannylbc702]

I'm glad you're still alive

[@IamGrimalkin]

Oceanic crust is less dense than the mantle, not more. That's why it floats on it. However, oceanic crust is still heavier than continental crust, and New Hampshire is going to have a thinner continental crust due to being at the coast. Also, New Hampshire is further north than Salt Lake City, and effective gravity is more at higher latitudes because of the lack of the equatorial bulge and centrifugal force of the earth.

[@ethanglass4465]

Cody is the only person in the world that can rock that hairdoo! lol

[@KowboyUSA]

Hi Toby! Have a safe flight!

[@jcmik]

You measured the Eötvös effect!! :^D So cool!

[@PenfookioGaming]

Cody I love your videos you do experiments I would love to do myself but I lack the property and money to do. I also like that you repeat thing you know the results but want to see if you get the same results. Keep up the good work!

[@MUSEDR00L]

Since the lifting surfaces of a plane are to the sides, the fuselage is sitting in the middle of two enormous flexible levers and every little flex and bend of either wing will cause the body of the plane to continuously shift up and down, sometimes imperceptibly to a human. A sensitive scale in the body of the plane would constantly register the shifting momentum of the object on the scale in addition to the force of gravity.

[@killernat]

at cruse altitude the pilot doesn't touch the controls(unless something went wrong) often the pilot dosen't even need to land the plane its mostly handled by the autopilot and the FMS. once the plane is off the ground and after takeoff checklist is complete the airplane practically fly's itself the rest of the route is controlled by the FMS or if you are being vectored on approach or take off its a mater of changing the autopilots heading

[@mylesbishop1240]

Nice stash of buds there Cody *4:37* got it on the plane and all. You even reserved a seat for your weed.

[@Nate-lt1bq]

Could you possibly find a way to spin a gyroscope in a vacuum? If you make the point of the gyroscope very small/sharp, there would be very little friction to slow it down.

[@odstsniper]

how was your night man? WELL I WATCHED CODY PUT A CUBE ON A SCALE FOR TWENTY MINUTES..... would watch again

[@fitzyboy4591]

As a New Hampshirite, I would just like to point out that concord is pronounced here as con-curd more than con-cord

[@andyjones7121]

The Eotvos Effect! I've been frustrating flat earthers with that gem for years! When someone thinks people in Australia would be falling off the earth if it was really round, they usually have trouble understanding the Eotvos Effect (weight difference traveling East vs West), but hey, it was worth a try :)

[@skygh]

Teflon tape and pliers-check. Duct tape-check. Clear practice lock and lock picks-check. Scale-check. Looks like we got everything we need.

[@zigero1]

i am pretty sure new hampshire is more north than salt lake city. So the velocity of the object (turning around the earth) is the major reason for the deviation. The velocity there is smaller, thus the centrivugal force is less too and the object is heavier. The cube would have the lightest weight on the equator on a mountain. Im pretty sure that the density of the material under the cube has its influence too, but since the earth's crust is very thin compared to the liquid interior (density -gradient from the core to the crust almost constant), the slightly different densities in the crust shouldn't have too big on an impact on the gravity field lines. Your observation should be primarly caused by diffrent centripetal forces.

[@PuchMaxi]

Welcome to Cody's LockLab!

[@EpicLPer]

Didn't you already upload a similar shorter video somewhere?

[@daxthomson1572]

watching you drive where i drive every day makes my fan girl level boil over