Some Flat Earthers got excited about a broken Foucault's Pendulum... Here is a working one.

In April 2022 I was in Los Angeles for a week. I visited the Griffith observatory and saw the Focaults Pendulum.

[@josleys]

Here is an impressive list : en.wikipedia.org/wiki/List_of_Foucault_pendulums Mitchell should check all of them.

[@paulheath007]

Mitchell won't check.... That would risk him losing his belief system 🤣

[@NinjaMonkeyPrime]

@@timothyp.southwick6542 Still afraid to take a Turing test?

[@jaimevivesp]

@@timothyp.southwick6542 What about you go to Jos Leys channel and look at his many videos proving the earth cannot be flat?

[@Kualinar]

So, ONLY counting the countries, that's 30 in Europe, 2 in Africa, 8 in Asia, 9 in the Americas, Australia, New Zealand and Antarctica. With more than one pendulum is several countries. That totals well over 200. And, those don't cover the privately owned ones...

[@raimundematiusaityte9929]

Thanks for the list. I can see one in Aarhus science museum. It is 1 hour driving from where I live. I will definitely visit it with my children!

[@josleys]

Somebody posted this a while ago and it seems to me like a genius idea: Build a giant Foucault's pendulum such that that pendulum is a very heavy ball with a sharp metal spire at its base (say 10 feet long) such that it can swing above a large round platform. Attach wooden posts on the platform in a circle. Begin swinging the giant pendulum such that it just barely misses the first post. Tie Mitchell, or any other flerfer to the second post, and explain to him that he will be perfectly safe as long as the earth is flat.

[@joecooksey4331]

LOL....

[@fepeerreview3150]

I'll be happy to contribute to the cost of erecting such an object. Perhaps we could tie Oakley to the third post? He would have the benefit of seeing whether or not anything happens to Mitchell.

[@gafrers]

Winning Idea

[@maxwellshammer5283]

🤣🤣🤣

[@capq57]

Sounds like something from a James Bond movie.

[@profphilbell2075]

Way to go Wolfie. Of course Mitchell might have to walk back his assertion that if the Foucault pendulum does precess then Earth is spinning. And given that the pendulum precession is dependent on latitude, then Earth must also be a sphere. Thank you Mitchell!

[@Wolfie6020]

I have a date with a Southern Hemisphere pendulum tomorrow.

[@thudthud5423]

If P then Q. If P disagrees with the Flat Earth then ignore Q.

[@my3dviews]

@@thudthud5423 Y ? 😀

[@mittelwelle_531_khz]

Oh Phil, you are so optimistic. Of course then they will claim it's the "energy of the heavens" that makes the pendulum precess. -- Martin

[@NightSkyJeff]

@@Wolfie6020 I think it's spelled "pudendum". ;)

[@tomfromamerica8042]

I know this pendulum! It's at the Griffith Observatory. I've been going there since I was a small child and this pendulum is right at the entrance. It has fascinated me since before I could see over the wall around it. In those days I had a very hard time understanding how and why it works just as flerfers do, but then I was only four years old!

[@xnoreq]

That's the thing about flatheads. Some of them are quite capable of logical thought and are able to construct logically valid arguments, but when it comes to understanding reality and facts that contradict their dogma, it looks like they are 4 year olds. If there was mental gymnastics in the olympic games, it would always be religious flatheads standing on the podium.

[@CL0WN]

Shots fucking fired

[@MeppyMan]

That ending. Love it.

[@bcfcireland9456]

so you know now they start the motor then on top of it...well done you big whippidi doo

[@tomfromamerica8042]

@@bcfcireland9456 , how old are you? You sound like a four year old.

[@bunnykiller]

when a machine is designed properly it becomes a work of art, sheer beauty in such a simple mechanism and it does what it was made to do.

[@bluemarblescience]

There are lots of them out there and they definitely work. That little display that Mitchell was showing was just that - a display, and a broken display to boot. This one at Griffith is an excellent example of an actual working Foucault pendulum. Thanks Wolfie!

[@Wolfie6020]

Cheers Blue. I have a date with a Southern Hemisphere one tomorrow.

[@bluemarblescience]

@@Wolfie6020 Excellent! I've seen the one at the Chicago Museum of Sciences and it works just as it should. But one from the southern hemisphere will be fun to see too. Have a good flight! Cheers.

[@freefreepalestine360]

@@bluemarblescience keep in mind that all pendulums have to be kicked started every morning just mesmerizing the globe worshipers minds. Try formulating the next eclipse prediction putting in to account the mythical rotation of earth 🙏

[@JustWasted3HoursHere]

@@Wolfie6020 How do flat Earthers explain that not only do these pendulums make varying degrees of rotations depending on where they are in the world, but they even rotate in different directions depending on whether they are above the equator or below it (with no rotation at all on the equator)? My guess is, they don't.

[@judybassett9390]

I checked a list of Foucault pendulums and saw that there are two in Tennessee. When I was at university I sometimes got to go inside the bowl and set up the pegs. Made sure that I was not in line with the ball.

[@citationrequired71]

You are not allowed to use working examples, that's cheating.

[@existdissolve]

Even if flat earthers believe that there is something "fishy" in the setup of any particular version of this experiment, they still cannot and never do answer why the maths work EVERY SINGLE TIME. There has to be a mechanism to explain why one's latitude on earth can be calculated by measuring the drift of these pendulums. On a sphere, the mechanism is dead simple to assess. But what, flat earthers, is the mechanism in your fantasy world?

[@melonenlord2723]

the magnet inside it gets adjusted so that it can spin different in different latitudes :D

[@existdissolve]

@@melonenlord2723 Definitely a possibility that could be tested, but of course, only for those experiments that utilize a magnet ;)

[@Wordavee1]

How about the flat earth, the dome and the stars all are turning once a day and that's why the pendulum progresses? No flerfer has been bright enough to claim that so far! Maybe if one reads this they might repeat it and start a meme! Remember, you heard it here first!!!

[@mittelwelle_531_khz]

@@existdissolve a simple "magnet" is not sufficient. It needs to be something more complicated, most probably driven by some electronics to give a "push" that is always "neutral" to the current plane of the pendulum's swing. If the electronics can add energy in a "neutral" way it is well possible the electronics "cheats" a bit and add energy in a way that makes the pendulum change its plane of swing. Having said that: of course if no energy at all is added to keep the pendulum swinging with the same amplitude that counter argument is eliminated.

[@existdissolve]

@@mittelwelle_531_khz I never said anything about a "simple magnet", but thank you for the unprovoked mansplaining anyway.

[@Undo743]

And wolfie didnt even ask for any money to do this, like how mitchell asked for money. Thanks for this Wolfie.

[@AztroNut66]

Thanks Wolfie! Looking forward to the next location. For all of the flerfs, we can check the math to determine the latitude for this location. The calculation for latitude is simply... the arcsin of [24 hrs divided by the time it takes for the swing plane of the pendulum to make one full rotation around the circle]. - It takes 42 hours (0 through 41) for the swing plane of this pendulum to make one full rotation around the circle. - 24 divided by 42 is 0.571428571 - Arcsin of 0.571428571 is 34.8 A quick check using google earth shows the latitude of the Griffith Observatory to be 34 degrees, 7 minutes, 6 seconds North latitude. Pretty close.

[@andysibley1]

Some flerfs don’t even know one Focault from another.

[@maxsignori316]

Oh, that one was pure comedy :D poor Liely

[@lexstockton3785]

I remember seeing a Foucault’s pendulum when I was about 12. I had a normal 12 year old’s attention span but I starred at it for a long while, the first time I saw something that directly, locally showed an effect based on the physics of the earth and the solar system I was starting to figure out. That was about when a certain man was about to take a small step…

[@paulheath007]

"It can be explained in fairly simple terms" And this, ladies and gentlemen, is where the flat earthers fail. "fairly simple terms" are still too complicated for the average flat earther

[@ReValveiT_01]

They could 'get it' if they wanted to, but they have chosen a life of wilful ignorance because they're happier in the lie.

[@xnoreq]

If they can't even do unit conversions let alone basic trigonometry, then this math is waaaay too complicated for them.

[@John.0z]

​@@xnoreq Is 1 + 1 = ? too complicated? It *would* seem so.

[@0LoneTech]

@@John.0z In one notation of Boolean algebra, that would be 1. The + is saturating single bit sum, also known as logical or. Another example might be modulo 2 sum, aka exclusive or, producing 0. But you were probably expecting 2, or as we write it in binary, 10. Much of math is choosing applicable notation.

[@John.0z]

@@0LoneTech All of which is so far beyond Mitchell that you might as well be speaking a different language. I have always favoured binary.

[@maxmac7845]

Can't wait to see what Mitch from Australia comes up with to run away with Mr. Sensible's money and dodge the challenge. He has no shame so he will probably simply say faq u and just take the cash.

[@SpaceCadet2569]

I don’t think that there is anyone else that literally travels half way across the globe to show the Flerfs how deluded they are. You need to talk to Mr Bezos and get yourself up in Blue Origin. That, is your final frontier. Your final nail in their echo chamber of a coffin. Hope you and your family are keeping well.

[@Wolfie6020]

Thanks, I would love to take that flight. Maybe I'll send him an email. I am an Amazon Prime customer so how can he refuse. 🙂

[@John.0z]

@@Wolfie6020 Easy Wolfie, he is a multi-millionaire. They don't do anything unless it benefits them. Much as we appreciate you, I cannot see Bezos having the same high regard for a person he does not know.

[@RDeathmark]

Flat earthers will claim there's a mechanism up out of sight where the pendulum is swinging causing the pendulum to drift to convince people about the globe or something

[@fepeerreview3150]

That's right. That's what they claim. And yet, despite there being thousands of publicly displayed pendulums around the world they have yet to show a single one of these mechanisms in use and show us how it works. Strange.

[@clemstevenson]

Some Flat Earthers will probably claim that it's a function of 'The Aether'. I have heard absurd Flat Earth conspiracy theories, based on the claim that the failure to find the luminiferous aether was a cover up.

[@TheWokeFlatEarthTruth]

So Stephen, what you are saying is that even their conspiracy theories actually have their own conspiracy theories. Basically, their stupidity has no limits.

[@clemstevenson]

@@TheWokeFlatEarthTruth Yes. Flat Earth 'truth' seems to depend upon which Flat Earther you talk to. I have heard Bob Knodel trying to explain the 15 degrees per hour rotation as a function of the aether, even though the aether has never been demonstrated to exist.

[@jameshall1300]

They always use some type of science-y sounding buzz word to try to justify their idiocy, be it aether, electromagnetism, refraction ( but only when it's convenient ), perspective, etc.

[@clemstevenson]

@@jameshall1300 Oh, yes, they try to make themselves appear 'reasoned'. This is how it is in the case Mitchel From Australia, who has been claiming that the science behind the Foucault Pendulum is a hoax. It wouldn't make any sense for museum staff to present a science experiment that they knew wouldn't work.

[@grahvis]

Their latest claim, completely unverified, is that Bob took it to a higher elevation and got a different reading. You have to lie to flerf.

[@spheroidialmaster1910]

Thanks, Wolfie. I'm still upset that they took the one out of the Smithsonian in Washington D.C. Some educated people including some scientists fail to realize how important it is to engage with the less-educated public with demonstrable evidence to help them feel more connected with our admittedly complex world.

[@John.0z]

And some people also fail to properly address the 50% of the population who have a below average IQ. I think we should use every method we have available to educate as many people as possible to the maximum level they can understand. Choosing to orient an education system primarily for those who are likely to progress to a university, as we seem to be doing ever more in Australia, is a grave mistake.

[@TheTruthHz]

I wholeheartedly agree. Unfortunately the science denying narrative is now, "they're lying", "everything is fake" etc etc so they don't even trust experiments like this and certainly won't attempt to recreate these themselves. They're too afraid to be proven wrong.

[@John.0z]

@@TheTruthHz It is interesting to see someone from the northern hemisphere use a photo of the full moon as their icon. Combining our two photos we have one of the easiest observations that the flat earth, or space denial people cannot explain. But as you say - they will not even look. What boring people.

[@TheTruthHz]

@@John.0z again, 100% a lovely proof. The moon is a great source of evidence for the heliocentric model that they love to handwave dismiss. I'm particularly drawn to the observation where if the moon can be seen in the day sky, a ball held up in the sunshine, adjacent to the moon, will exhibit an identical illumination pattern to the moon.

[@John.0z]

@@TheTruthHz I like that evidence too... and it has been shown to them several times.

[@bendlyte]

_"It's fairly simple math behind it."_ No matter how simple the math, nothing can stop the will of flerfs to deny it.

[@TenMinuteTrips]

As soon as this video started, I knew. That’s Griffith Park Observatory! I grew up in LA. I went to Laserium shows here long after the school and Cub Scout trips here. The first Terminator arrived here at the beginning of the movie! I’m home again! Thanks, Wolfie!

[@WoodworkerDon]

Good show mate. I haven't been to Griffith Observatory in close to 40 years, but the Pendulum was there. 👍

[@Wolfie6020]

It is a great place to visit. I go there every time I am in LA. Hoping to take my daughter there around Christmas.

[@WoodworkerDon]

@@Wolfie6020 Emma could probably teach some folks about some of the scientific displays there. My favorite was a seismometer that you could see register when you jumped up next to it. Not just when you landed, but also as you jumped up.

[@John.0z]

@@WoodworkerDon What was it showing as the background? How often are there small tremors recorded? When I was at a conference in SF there was a tremor... it stopped the conversation I was having dead! We both looked around to see it we were supposed to leave the building - neither of us being from California.

[@WoodworkerDon]

@@John.0z It has been 4 decades since I was there, so I don't recall much. I think there were 2 seismographs in a big glass case in the middle of one of the several display galleries. One of them had sensors deep on the bedrock to record regional earthquakes. The other had sensor in the floor of the room that measured normal walking about in the room as well as jumping up and down, to show guests, including school kids how the wavy lines on the graph indicate the strength of earthquakes.

[@acefox1]

Nice! That looks like the Griffith Park observatory. Took tons of Field Trips there as a kid. It’s a fantastic date spot as well with an amazing view of the city. 😁

[@Nimion2]

One broken pendulum vs hundreds that each duplicates the results of each other. Only a flerf would run with that as proof of flatness.

[@philyoung6745]

See also the 'Black Swan' photos. Or rather don't bother.

[@coreymunroe8073]

@@philyoung6745 Yeah, those have been debunked to smithereens already.

[@philyoung6745]

@@coreymunroe8073 Just for clarity, I should emphasise that I know the earth is an approximate sphere, I was just pointing out that it's another example of the FE loonies taking one broken instance of something and ignoring all the normal ones. Cheers, Phil Young

[@coreymunroe8073]

@@philyoung6745 No worries. My comment wasn't meant to suggest anything in particular. It was more to goad any flerfs that happened to read the thread. Cheers mate.

[@randomflerfstrawmanandnons1658]

@@philyoung6745 Photos? Three years ago Nathan Oakley said that photos can't be used to prove anything. Then something changed...

[@Bunny99s]

I can recommend this video by Kurtis Baute. He actually filmed a foucault's pendulum for 30h+ and made an awesome timelapse video: kzbin.info/www/bejne/qZabZal9a8etpaM The camera was synced with the driving mechanics of the pendulum in order to get those awesome consistent shots. He really invested alot of time into this. He also has a video where he repeats Eratosthenes two sticks experiment and calculates the size of the earth.

[@mikefochtman7164]

Saw one in San Francisco, watched it for quite a while, knocked over a few 'pegs' while I just watched each swing. :)

[@misterocain]

It's like a car denialist getting excited by a broken down car and then having to face up to reality by being shown a cars that works.

[@GymRowboat]

Like the cherry-picked and highly refracted oil rigs photo. "Black swan!"

[@misterocain]

@@GymRowboat They can't accept that their "Black Swan" flagship actually debunks a flat Earth.

[@John.0z]

@@misterocain I will expand that if you do not object: "They can't accept reality".

[@misterocain]

@@John.0z Be my guest. Go for it.

[@chrisantoniou4366]

You are an optimist! Flat Earthers (car denialists) will NEVER face up to reality. They will claim the car is CGI, or it's being pedalled by the driver, or pushed from behind, or they will ask how so many different looking things all come under the same definition of "car" - something is fishy, or there were no cars before NASA was created... 🚙😂

[@billsmith5960]

My wife and I were in Germany under covid quarantine. I got out a day earlier so took a train to Mainz and seen my 5th one of those (along with going to the Porsche Museum later in the day). On a side note, next week, taking my older son back to Penn State for his 3rd year. Officially in the Astrophysics program now. Wait, Officially in the indoctrination program now.

[@reidflemingworldstoughestm1394]

It makes sense that flerfs would get excited about broken instruments since they're so excited about a broken worldview.

[@benjamindover5676]

Thanks Bob!

[@slysparkane808]

Wow.. an actually knowledgeable person with an actual explanation.. not some weak quotemine and a poor interpretation!! Awesome Wolfie!!

[@Wolfie6020]

Thanks Sly, Hope you are doing great.

[@slysparkane808]

@@Wolfie6020 all great!!

[@wiggles7976]

Would have been cool if you filmed it on the way in, and on the way out when you left a few hours later or so, so that we could see the precession, but it's still interesting. Clearly they wouldn't build the thing if it didn't precess.

[@profphilbell2075]

Mitchell thinks flerfs are so special that everyone can’t wait to spend thousands of dollars building an exhibit that doesn’t work just to fool the silly folks who actually think earth is flat

[@wiggles7976]

@@profphilbell2075 I've heard some flerfs say that the little kick given to the pendulum to keep it swinging all day is designed to fake the precession. I found this online "When the pendulum cable reaches a particular point in its swing, it is detected by an electronic device and the magnet is turned on at just the right time to give the collar (and thus the cable and the bob) a little "kick" in the exact direction of its natural swing". If you think about it, the pendulum isn't really precessing relative to the stars, so this kick is always in the same direction relative to the stars. I don't think all pendulums have this mechanism though, but I'm not sure.

[@awatt]

@@wiggles7976 The ones I built were just a rope or steel wire attached to a hook on the ceiling. No magnets or electronics and they processed as expected

[@dertod1703]

@@awatt...also, as an alternative mean to magnetism, a purely mechanical one may be employed: parametric excitation. Herein the pendulum's length is shortened and lengthened at will in order to feed energy to the system. Not everyone might be familiar with the term parametric excitation, but experienced it nonetheless as children; on the swing! :)

[@mittelwelle_531_khz]

@@dertod1703 ahh, that sounds clever! Never thought of it.

[@twocyclediesel1280]

That tour guide was great, polite but you could tell he’s had it with flerfs. Bob the Science Guy mentioned you in one of his vids (eotvos effect) so I came over and subbed.

[@tubedude54]

I've seen the pendulum at the Museum of Science and Industry in chicago and at the state house in Indianapolis. Both work as they are suppose too... confirming the rotation of the globe earth.

[@Alysm-Aviation]

"simple math" please, flerfs already struggle with triangles, this is too much for them.

[@slc40]

I don't think they could multiply 0x0 and get the correct answer.

[@primonomeultimonome]

@@slc40 They failed with 5/0, so you are certainly right.

[@jguillaumes]

Well, the math behind the FP plane of swing notation is NOT simple at all (although the final equation relating the rotation period with latitude is). You need to derive Coriolis first, and then apply Coriolis to the pendulum motion. It is NOT trivial at all.

[@Isolder74]

I’ll have to see if I can manage to go see the one at the Hansen Planetarium this weekend. Of course it seems all Mitchell has managed to do is find one that wasn’t working properly, not hard given that one’s size is on the threshold of being too small to work so easier to mess up, and just declared victory. Of course he still has to explain all the ones that are working but thinks he doesn’t have to because onix plumed swans.

[@Bnslamb]

What does QFA1338 VH-ZNJ do right now? It seems to go to Antarctica on Flightradar.

[@nineoclockhero]

The guide could not have put that better.

[@Wolfie6020]

Yes I was very happy with his answer.

[@DelBoy1967]

Nice one, but you didn't record it for 4 hours :-) Mitchell still owes Mr S a 4 hour video as per agreement.

[@Wolfie6020]

GinGin tomorrow. 🙂

[@DelBoy1967]

@@Wolfie6020 If wasn't working tomorrow I'd join you on the trip. Went there a few years ago to the observatory.

[@davidkeller6156]

Silly Mitchell, finds a broken toy pendulum and thinks it proves something while there’s Foucault pendulums all around the globe.

[@AdamHowellProvo]

Is it unusual that there are two within a 15 minute drive of my house? And one of them is literally on the way to the other.

[@farkasbelabill5969]

Great Job 💡 God Bless All Of You 🔥 Peace 🕊️

[@grahvis]

It wouldn't be so bad if it wasn't for the fact that the principle of the pendulum is so easy to test. Just hold out a plumb bob at arms length, start it swinging then move around. The bob will always swing in the same direction in space.

[@John.0z]

Which raises their most expensive fail: the US$20,000 ring laser gyro - "Thanks Bob". After all, this is just a huge version of exactly the same principle.

[@heyarno]

Nice, you really know where it hurts them most ;P I'm waiting for the 4h video that Mr. Sensible paid Mitchel for.

[@fepeerreview3150]

Thanks, Wolfie.

[@YourPalAlRetroGamer]

I wonder what Top Left 2022's reaction to this will be?

[@doug-Hakura]

Thanks for another great video. I was wondering what "ideas" the flat earthers have come up with.

[@thettguy]

This is the sort of size you need to have it work well.

[@chrisantoniou4366]

The bigger the better...

[@budrome4247]

Theoretically, how would a Foucault type pendulum act/react on the flat earth “model”? Is it not in motion in some direction as well? Just a thought at random.

[@sissyfus6181]

Here's what it wouldn't do. The precession at the poles being 360 degrees per day. (oops, no South Pole on FE!) From the North pole to the Equator, the period of the precession being as a function of the latitude. At the Equator, no precession. From the Equator to the South Pole, the period of the precession being as a function of the latitude, but this time in the other direction than what was seen in the northern hemisphere!! And finally at the South Pole 360 degrees per day but in the opposite direction than at the North Pole. That can't be explained in FE.

[@JonathanMBardsley]

Thank you I’ve not had a good laugh for a while but that cheered me up so yeah thank you Wolfe

[@Wolfie6020]

Thanks, Yes it makes me laugh when I see Flat Earthers getting excited and I already have footage refuting them.

[@NinjaMonkeyPrime]

What's funny is the idea of a flat Earth map that works.

[@JonathanMBardsley]

@@NinjaMonkeyPrime what’s funny is you don’t even know that we are in a simulation this two minute video I created will show you kzbin.info/www/bejne/m5fIlK18i7CDmsk

[@JonathanMBardsley]

@@Wolfie6020 wolfie6020 if you are human your the biggest sell out for the human race because what your doing is helping the dimensional being elite to screw over the human race. I create videos myself and here is why I say what I say Two minute video proving that we are living in a simulation kzbin.info/www/bejne/m5fIlK18i7CDmsk This link shows where the hard drive is kzbin.info/www/bejne/qaO0p6Cgd9aHj68

[@theultimatereductionist7592]

And I went my entire life believing the ONLY one was in the Smithsonian in Washington, D.C.!

[@dogwalker666]

So to add to the list of things flurfs can't do we now have pendulim, Being a flurf is so pathetic.

[@david_akerman]

Just keep a list of things that they can do. So far I've got deflect and lie.

[@SamSalhi]

The first thing I saw when I visited my fiance for the first time! She took me on a tour to Griffth observatory Smart girl 😉 she's a keeper

[@Marconius6]

Would a pendulum like this also work on a flat Earth, IF it is spinning around the north pole? I think the math works out the same north of the equator? I'm guessing it wouldn't work on the southern half, but flerfs there have got bigger problems anyway...

[@peppermintgal4302]

No, the change in how it precedes at each latitude would be different, since it'd have to precede differently at the equator. If I understand correctly, the pendulum won't vary its motion at the equator, but it would on a rotating flat earth. And the closer you get to the equator, the closer the pendulum will get to acting how it does at the equator, hence why I say the degree of change at each latitude will be different. But as it is, the math matches a round earth, not a flat one.

[@bdf2718]

If the flat earth is rotating about an axis perpendicular to the plane of the disc then the precession will be the same at any point on the disc. The plane of the swing of the pendulum keeps a constant orientation to the fixed stars (as it does at the poles on the globe earth).

[@mikefochtman7164]

Reminded of that flerf that googled 'Foucault' and got the wrong entry on Wikipedia. Ranted on for several minutes about how "his pendulum isn't even mentioned. " LOL

[@Katy_Jones]

Riley? That wasn't a mistake, it was deliberate.

[@bdf2718]

That was Riley. And it was probably deliberate so he could poison the well with a homophobic slur.

[@Forest_Fifer]

#RileyKnowsFoucault

Uhmmm... Could I ask for someone with a bit more mathskills than me (shouldn't take much really) to help me a bit, just in case I should do a serious roadtrip sometime...? I see, thanks to Jos Leys link here, that there's a pendulum in Trondheim, Norway. It is 5-6 hours drive north of me, so I'm not planning to go right away for this. BUT! Who knows, if I all of a sudden should be on my way there, I could pop by and have a look at that pendulum. Would be fun! So... The coordinats for this thing is 63.416 10.407 so the amount of drift should be predictable for a working model of earth, shouldn't it...?

[@scott_meyer]

Yes. The math is advanced.

[@Bnslamb]

There is a Foucault pendulum in the University of Oslo Physics building.

@@Bnslamb Uhmmm... Yeah! I totally missed that one, guess I was a bit tired in the middle of the night here 😴😇 Now, the coordinates here seems to be 59.94 10.723 but I still have no idea to calculate and predict the drift by the hour... Please help someone 🥺

[@AztroNut66]

@ The time it takes for the swing plane to make one full rotation at your location is simply- [24 hrs divided by (the sin of the latitude)] T = 24hrs/sin of (latitude) T= 24hrs/sin of(59.94) T= 24hrs/0.86550133025301897487023565799252 T=27.7 hours 360 degrees /27.7 hours = 12.996389891696750902527075812274 degrees per hour

@@AztroNut66 Hey! Thanks! I appreciate that 😀

[@Atlas6355_]

flerfs reaction: Nu UH!!!! is remote controlled, the Bible says......., we don't feel rotation, LOL

[@ArcticReflections]

Great one

[@osci08]

Jesus Wolfie.....Some of the biblical fundamentalists have been brought out by this one.

[@jam2190]

Could have showed it hitting the second tile???

[@sarah11737]

Another great video wolfie 👌. Those dam FE clowns. Now I've watched your videos I can go back to believing we live on a magical spinning water ball where gravity cannot be seen or measured. Thanks 👍

[@dwarfagp]

I doubt that the other Pendulum was broken. And suspect it was all in the editing of that Video. Not that the creator of the video would do a thing like that. I mean, he's not done anything like that before..........

[@phillipkidd762]

Yes, starting filming at 9:11 am when the centre does not open until 10:00 am, but hey Mitchie is "special" so perhaps they let him in early .

[@WukongTheMonkeyKing]

@@phillipkidd762 I did some digging. Mitchell claimed he coild film at that time because he was there on homeschool day. On homeschool day the doors open for registration at 9am. So this checks out, a bit. But on homeschool days they close at 12:30pm. So, he either started before they opened, or finished after they closed.

[@AndySmith4501]

Quite an easy debunk with a simple question. Does the earth turn underneath aircraft in flight. If not why?

[@sissyfus6181]

YES it turns! Now tell us does the earth turn under the projectile of a 16" naval gun set for a distance of 20 miles? Any difference between an aircraft and the 16" projectile from a Royal Navy gun??

[@frankdebrouwer-leiden]

No matter how many pendulums we globers show working. The average flerfer will just react with one out of the same set of answers: 1 the pendulum is manipulated 2 the video is manipulated 3 there is a magnet somewhere 4 the pivot point is designed to fake the precession 5 the pendulum shows the movement of the heavenly bodies, not the earth However, the most likely reaction will be: 6

[@andysibley1]

At least they can’t cry CGI on this one.

[@frankdebrouwer-leiden]

@@andysibley1 Oh, there probably is one that does!

[@sphaera2520]

Some cry cgi for live rocket launches. I wouldn’t put it past them.

[@an.d.m.a]

"How did you manipulate the independent variable to prove the cause was the rotation of the earth?" That's one I've heard before.

[@frankdebrouwer-leiden]

@@an.d.m.a was it the Liar Riley, by any chance?

[@adamstrange7884]

Notice Mitch went to a museum with a broken pendulum GOTTA LIE TO FLERF!

[@joecooksey4331]

Almost first... LOL

[@Wolfie6020]

So close Joe.

[@joecooksey4331]

@@Wolfie6020 Did you get the email I sent you of Saturn, Jupiter and the comet time lapse taken from the "Emma" approved "North American Wolf Pack Observatory" in my backyard?

[@gordonbrooks13]

Thank you for bringing back memories of my days in Los Angeles. I not only remember this Foucault Pendulum, but the wonderful camera obscura that they had near the entrance.

[@mittelwelle_531_khz]

First?

[@Wolfie6020]

You are the winner. Thanks.

[@awatt]

Congratulations 🥇

[@mittelwelle_531_khz]

@@Wolfie6020 thanks. We did this experiment in my schooldays. It must have been around 1970. The setup was rather primitive. The highest open staircase was about five floors. As the building had somewhat higher than usual storeys I think the total height may have been 14 to 16 meter. Our teacher had a special rope with kind of a ball bearing at the end that allowef the rope to change the vertical direction of its swing plane later. (Which is the point of that experiment, NOT that the pendulum "starts swinging by itself" how flat Earth proponents frequently explain). I'm not sure but I suppose our teacher started the pendulum in the "classic way" by burning a cotton file giving the pendulum its initial deflection, probably 1.5 ... 2 meter from vertically down, i.e 1° of rotation (which we expected to get about every 5 minute at our latitude) should show as a deviation of about 3 cm at the turning points of the pendulum's swinging plane. I think we watched for half an hour, with every five minutes marking the turning point on the ground. As the pendulum was not shielded that well from air currents too well so we didn't quite the expected results. You could say "qualitatively" it turned in the correct direction but "quantitatively" the amount of its turning was hard and harder to determine as time went by as the movement over ground became somewhat elliptical. Still I think the Foucault Pendulum is one of the easiest experiments to do oneself, although not quite on the proverbial kitchen sink - you need at least to have a high tower you can sufficiently shield from airflow. But note: while there is no electronics involved like in a optical gyro (or in modern telescopes) I nevertheless would recommend to the truly sceptic to mine the lead used for the weight themselves under cold moonlight 😉 ... otherwise who knows what secret ways NASA has to fake the outcome.

[@mittelwelle_531_khz]

@@awatt I strive for this only once per year. Next time is your turn.

[@JohnM3665570]

Too bad Mitchell didn't visit this observatory.

[@levelearthobserver8341]

Yawn, an old parlour trick that fools naive individuals.

[@NinjaMonkeyPrime]

And you COULD build your own to prove it doesn't work, but obviously THEY keep stopping you with black helicopters and armed robot penguins. Let's hear the catchphrase now - Pantomime!

[@martinmato8527]

like #gottalietoflerf ?

[@Wolfie6020]

No I just posted this to poke Flatties for a reaction. Your appearance here proves it worked. Thanks champ. Flight plans are the way I destroy Flat Earth but we all know you are afraid to debate me on that topic. Awesome job ignoring me too. You sure showed me... LOL.

[@jaimevivesp]

You know when someone says something is a trick, usually they are required to explain exactly how the trick is done?

[@NinjaMonkeyPrime]

@@jaimevivesp Well normally that's what honest people do, but in the flat Earth cult you just need to say "nuh-uhh" and claim victory.

[@DrewLeyMusic]

So cool!

[@AtheistRex]

"Fairly simple terms" is already way beyond the grasp of the flat earther.

[@2ahdcat]

Hell yeah. Awesome 👍

[@boatymcboatface666]

Hey Wolfie! Was curious if you still have the footage of helicopter training with Police for Sydney Olympics?

[@mymumbakescakes]

Going to see if they have one in Adelaide.

[@Mandelbrot_Set]

I asked Irish Druidess for a citation to back up her claim that pendulums and cranes should just start swinging on their own with no force applied to them. What did she do? She deleted her entire comment thread.

[@NinjaMonkeyPrime]

Awww, you ruined it. I was just starting to have fun quoting the description of her channel page on making claims with no evidence.

[@Alysm-Aviation]

Did I seriously miss an entire thread? Dammit.

[@sissyfus6181]

Ahhh, she was fun! So it's your fault she took off back to the forest to go dance naked.

[@cartographicprojection]

Great work Wolfie 😎👍

[@hieronymus..bosch8532]

Just curious, how often do they have to start the sphere?

[@oldtvnut]

One with a sustaining mechanism can run continuously, but then you lose the ability to make the base a clock dial unless you are at one of the poles. Those without a sustainer are started daily. The older one at the Museum of Science and Industry (no sustainer) is started at a particular time in the morning to line up with the hour markings on the base.

[@AztroNut66]

Lets say we could only get this pendulum to swing for 15 minutes without giving it a boost. We can still determine how long it would take for the swing plane to make one full rotation around the circle. T (time to make one full rotation) is equal to[360 degrees divided by the angle of precession of the swing plane , multiplied by the amount of time you were able to keep the pendulum swinging (a quarter of an hour or .25)] T= .25*(360/measured angle in degrees of precession) T= .25*(360 degrees/2.14 degrees) T= .25*(168.2) T= .25X168.2= 42 hours

[@hieronymus..bosch8532]

@@AztroNut66 🤨uhh ya of course Math

[@S-Theo]

Its witchcraft trickery Foucault Pendulums have drive mechanisms (electromagnetic coils at the top or bottom) to keep them going for extended periods of time. This is well known and not disputed. Pendulums are not perpetual motion devices. Every child in a playground swing knows he will slow down and stop if not pushed or unless he "swings" it himself. Without electromagnetic drives the Foucault Pendulums would slow down due to air resistance and have to be restarted by hand several times a day, which is a delicate procedure to do correctly. DUH

[@NinjaMonkeyPrime]

It's really odd that this bothers you so much when you remain completely wrong about what the pendulum shows or does.

[@Bnslamb]

Don't be so fixed on why it swings. It's the direction of the swing that is interesting.

[@Bnslamb]

As I told you earlier. The direction of the swing appears to change slowly in relation to the ground. The direction of the swing does not change in relation to the stars.

[@Bnslamb]

@Q Branch His comment above this is right.

[@NinjaMonkeyPrime]

@@Bnslamb It's funny how in this comment he's crying about witchcraft and using incredulity as evidence. He can't imagine anyone having the patience or intelligence to properly start a pendulum daily for the museum. Just because it seems really difficult to him, it must be impossible for everyone.

[@ponto08]

But, but, but...derp, derp, derp.....The Black Swan....how ya doing mitchell?

[@RoanJS]

There are three within an hour's drive of me. It's a common high school exercise to sink the three up and compare them over a week. High marks for teams that are diligent and precise. Enough schools have participated over the years they have a tight average.

[@RogueWraith909]

Leonard Nimoy event horizon theatre? Cool!

[@Darryl.M]

Do we have one in Brisbane?

[@Dr_Wrong]

Okay, explain why.

[@Bill_Bo]

I was at one is San Francisco and amongst the people standing there one guy was speaking pretty loudly trying to explain to a couple girls that it happened because of Earth going around the Sun.

[@scott_meyer]

It actually does detect that also. At most just under one degree per day.

[@overweightaviator]

I know where I’m going on my next LAX layover

[@Wolfie6020]

Nice to see you. I go there on every LAX stop over. (We don't have that many)

[@quintonwilson8565]

Here's another challenge to FE: three people low enough in the Southern hemisphere can all look south and see the same stars. Let's say these people aren't actually looking South because they're lied to and are actually looking North or off axis. Given this, at least one or two of these people will be looking a very far distance to see the stars--in fact, there are people in the RE Northern hemisphere that are even closer, yet cannot see what these 1-2 people see. FE cannot explain the most basic night sky observations. FE also fails to explain the equatorial symmetry of Foucault's pendulum regardless of season, and many other aspects of its behavior.

[@Sotdjuret]

Seen the one in Tokyo twice, its really cool

[@fromnorway643]

What kind of beast is the _soot animal?_ 😊

[@iambryaen]

Oh! A magnet encircling the cable pulls on the cable each swing. So evidently the magnet uses to keep the pendulum swinging loses magnetism overtime. I know heat accelerates this loss. Perhaps turning on the air conditioning a little higher will keep it longer next time

[@Alysm-Aviation]

It is an electromagnet, so that argument falls flat.

[@cwispy4180]

Top video Wolfie! 😀

[@notmyrealname3552]

Does an air worthy ring laser directional gyro drift 15 degrees per hour in an airplane while the airplane flies in a straight path?

[@martinmato8527]

You're wrong : It drift *already* at 15° per hour on a table or in a bismuth container in a garden (Thanks, bob).

[@notmyrealname3552]

@@martinmato8527 So a properly functioning one in an airplane doesn't drift 15 degrees per hour then?

[@martinmato8527]

@@notmyrealname3552 You don't know how a gyrocompass works, do you? 😀

[@notmyrealname3552]

@@martinmato8527 So a properly functioning one in an airplane doesn't drift 15 degrees per hour then?

[@martinmato8527]

@@notmyrealname3552 That's it! You really don't know how a gyrocompass works!

[@iambryaen]

But then again if it's electromagnetic fields, what would make it stop in the first place. That's the question if earth didn't stop moving or isn't moving.

[@Alysm-Aviation]

Given that the functions used to determine the motion of a pendulum are reliant on gravity, this question falls flat.

[@NinjaMonkeyPrime]

Have you considered that not all matter is magnetic?

[@rafaelmarangoni]

The Earth is moving. That's why the coriolis effect makes the Foucaul't pendulum work. And it's not even the only method so you can verify it.

[@antondovydaitis2261]

I am not clear how a Foucault Pendulum can be "broken."

[@Wolfie6020]

Too much friction in the bearing at the top could cause it to not rotate correctly. Toy focault pendulums suffer from that problem.

[@antondovydaitis2261]

@@Wolfie6020 Duh, should have been obvious. But when I think of a Foucault Pendulum, that is the one I imagine, so friction did not come to mind.

[@tjjones621]

It will work if you replace the sphere with the Gleason time chart...

[@paulpeterson5147]

Beautiful

[@meloney]

Might be slightly off-topic, but do some Flat-earthers like Santos still resort und threaten violence? I was always wondering why this wasn't a bigger thing- Also we all know that the pendulum gets rugged under the carpet:/

[@iambryaen]

We have to all agree we can't feel earth move or see it move earth so what makes this thing swing if we can't feel earth move? It has to be electromagnetic fields

[@Alysm-Aviation]

We can observe the effects of earths movement, we can measure earths movement.

[@mikep9604]

The daily path of the sun is caused by the rotation of the earth...

[@tjjones621]

It's really very simple... The alternative to a spinning Earth is a spinning universe - an impossibility proven by jr. high level math.

[@iambryaen]

@@tjjones621 I didn't know cosmic background radiation coming at us from all directions with no point of origin and the "axis of evil" were Jr high level math but also, when nasa does iss videos, why do they spin the earth in the same direction the sun is circling in their sped up videos? Or is the sun not moving and they are moving it on purpose or is earth not moving. We can't have the sun move in the same direction the earth is spinning from the ISS and not ask questions. If you haven't seen this, do some more research.

[@iambryaen]

@@tjjones621 also why fake a 24 sun in Antarctica? And then the dummies didn't even use a different day! They looped the same day and the same exact clouds expecting us to think its real. I believe that the ones doing the cgi work are not engineers and matheticians because you just can't spin earth in the same direction the sun moves. One the other hand, they could be Christians trying to expose truth. Either way. It worked

[@AndySmith4501]

I'm confused about this. If the pendulum is attached to the building, how can anything underneath turn independently of it.

[@sissyfus6181]

Simple, it's attached by a sort of universal joint.

[@AndySmith4501]

@@sissyfus6181 And what's the UJ attached to ? The ceiling ? So that means the floor is turning underneath the ceiling 🤣

[@sissyfus6181]

@@AndySmith4501 "So that means the floor is turning underneath the ceiling " With the universal joint your statement is actually: "So that means the PENDULUM is turning INDEPENDENTLY underneath the ceiling". You're welcome.

[@AndySmith4501]

@@sissyfus6181 You can't have to separate reference points in the same building. That's just next level stupid. Does the earth turn underneath aircraft in flight?

[@sissyfus6181]

@@AndySmith4501 "That's just next level stupid." Sorry Andy your comments are speaking for themselves. Are you a high school graduate?

[@leithal1546]

That pendulum is a paid actor

[@John.0z]

How typical of Mitchell to choose an observation where there is no deep understanding of physics or mathematics required to understand the principle... and still get it wrong.

[@throwawayavclubber7269]

Even a broken Foucault's Pendulum is correct twice a day, right?

[@sissyfus6181]

Whereas a flerfer is ALWAYS wrong!