Why Do Ships Have Two Balls?

Рет қаралды 799,847

8 ай бұрын

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✩ABOUT THIS VIDEO✩
In this video, we investigate the magnetic compass used on ships and discuss the correctors needed to keep it accurate.
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Пікірлер: 1 000

@ChrisParrishOutdoors 8 ай бұрын

This is why ships have seamen

8 ай бұрын

Brilliant! 😂😂😂😂

@SirArghPirate 8 ай бұрын

Salty seamen.

@Oof-th5hz 8 ай бұрын

@@SirArghPirateAYO? AYOOOOOOO??

@ghostemptation8979 8 ай бұрын

if ships have balls why are they often referred to as 'she'??

@keiyakins 8 ай бұрын

@@ghostemptation8979 because they're a form of TRANSportation

@StickerWyck 8 ай бұрын

It's like 10% of engineering is to use the laws of nature and the other 90% is to counteract it's unwanted nuances.

@proof4469 8 ай бұрын

sneed

@crabofchaos7881 8 ай бұрын

@@proof4469you stop sneeding or else

@proof4469 8 ай бұрын

@@crabofchaos7881 ok I stop

@crabofchaos7881 8 ай бұрын

@@proof4469 or else I fart

@sierraecho884 8 ай бұрын

HAHAHAHAH genius xD @@proof4469

@OnionChoppingNinja 8 ай бұрын

"Why Do Ships Have Two Balls?" " one ball on each side of a central tower" nope. couldn't keep a straight face.

@haraldviberg534 8 ай бұрын

same

@watcher1421 8 ай бұрын

What's funny about Kelvins balls!? 🤣

@xp8969 8 ай бұрын

Your gay face casually navigated it's way out

@ImieNazwiskoOK 8 ай бұрын

@@watcher1421 Hey you! You better not mess with navigator's balls!

@Bronze_Age_Sea_Person 4 ай бұрын

Don't forget the shaft that corrects vertical soft iron magnetism. Correction is made with both the two balls and the erect shaft.

@djmit44 8 ай бұрын

I honestly can’t believe how clearly you’ve explained such a complicated engineering challenge! This is spectacular.

@JohnnyAngel8 8 ай бұрын

It might be clear to engineers but not to me.

@jamesretreat 8 ай бұрын

Do you seriously go into everything with that sort of mindset?

@olspanner 5 ай бұрын

You mean you got all that the first time!!!

@PLANE_BOSS 8 ай бұрын

"Why do ships have 2 balls?" Me: *sighs and opens comments*

@mikerichards6065 8 ай бұрын

Kelvin Balls -named after William Thomson, later Lord Kelvin. When not making navigation safe, he gave us the absolute temperature scale named after him; the first and second laws of thermodynamics; developed the first devices capable of accurately measuring electrical forces; who helped perfect the Transatlantic telegraph cable; and invented 'the siphon recorder', the ancestor of the inkjet printer.

@sierraecho884 8 ай бұрын

Kelvin has earned his massive balls I would say.

@TheFeldhamster 8 ай бұрын

@@sierraecho884🤣🤣🤣

@ethribin4188 8 ай бұрын

Great man

@sirllamaiii9708 8 ай бұрын

He helped invent the inkjet printer and Big Printer's iron grip on the toner market? For shame

@Blaze_1961 8 ай бұрын

We called them binnacle balls when I was in the US Navy.

@arjenmiddelb 8 ай бұрын

They are shield generators. Destroy them and take out the shields quickest.

@antonliakhovitch8306 8 ай бұрын

LSW TCS FTW

@stevennotthe2997 2 ай бұрын

Now the houthis will sink all the cargo ships

@SeattleBoatdog 8 ай бұрын

Old former compass-swinger here … You do an exceptionally solid job with your explanation.

@voiox 5 ай бұрын

Is your professions logo an magnetic flamingo?

@taitano12 8 ай бұрын

Thank you for the memories. As I listened to your explanation, my late maternal grandfather's voice was echoing in my head as I remember him explaining his craft to me. He was a Professor who taught Navigation, marine focused Wireless Communications, and Naval History. He was also one of the best Compass Adjusters on the West Coast. He died of cancer in 1993. His name was Robert E. Larson. I was just a baby when I first met the sea Twas my father, grandfather, the Skipper, and me. The salty sea splashed me, I started to cry. Grandfather smiled, then laughed and asked why "That means the sea likes you; she gave you a kiss. So blow a kiss back and say 'Thanks' for the mist." Now, all these years later, on the South Salish Sea, With memories of father, grandfather, and me, I stand on the deck of the Samish ferry Getting salty sea kisses from my Lady, the sea.

@chickenfriedchickenn 8 ай бұрын

This is beautiful. Thanks for sharing. Your grandfather sounds like he was a wonderful man.

@ardeladimwit 8 ай бұрын

thanks for that

@Martcapt 8 ай бұрын

I thought this comment would go into a completely different direction.

@toddbrown4935 8 ай бұрын

thanks for sharing this

@nunyabusiness9013 8 ай бұрын

Bukake metaphor

@LinkinPark4Ever1996 8 ай бұрын

Whoever's commanding those ships, has balls of steel

@doffmoffin 8 ай бұрын

In which case they are going to have to add additional correcting magnets.

@ethribin4188 8 ай бұрын

Perfection

@danielderias4773 8 ай бұрын

@@doffmoffinmuch easier to just lop his balls off

@DasEtwas 8 ай бұрын

@@doffmoffindepends on if the balls are soft or hard

@drworm5007 7 ай бұрын

@@DasEtwasi don't know about that but I think they might be monopole.

@joule400 8 ай бұрын

me: such a nice educational video as usual also me: very maturely laughing at navigators balls

@SS-rf1ri 8 ай бұрын

@@Ronaldo-ue5ifhaha magnet balls

@jovetj 8 ай бұрын

It does take balls of steel to think you know where you're going on the big, open ocean!!

@damiencouturee6240 5 ай бұрын

@@jovetjLmao alright, that was good.

@Combes_ 3 ай бұрын

@@jovetj And a lot of seamen!

@RammusTheArmordillo 8 ай бұрын

very surprised to learn that a "monkey island" is an actual place on a ship lol

@Halinspark 8 ай бұрын

And apparently the Secret of Monkey Island is Kelvin's balls.

@richardcranium3579 8 ай бұрын

@@Halinsparkand he paints them red and green……better than blue I guess

@yetanother9127 6 ай бұрын

It's synonymous with a "flying bridge" if you want something to Google.

@52HzWhaleMusic 8 ай бұрын

Boats are so interesting and goofy. Every single one of your videos is "the bibbledy bung ties together the weedlethin pump, and that's why Sir Andrew Thorne's Crispy Knuckle goes to wayside." And I love it.

@CyclicPilot 8 ай бұрын

Kelvin wasn't happy when his port ball fell athwartships...

@bryanpritchett 8 ай бұрын

Each of these videos is kind of like a multisensory Patrick O'Brian experience. I mean that in a good way.

@drworm5007 7 ай бұрын

I'm just replying so the machine spirit knows this is a good comment.

@thelazione6236 3 ай бұрын

bump

@UKMonkey 8 ай бұрын

So - looking after your balls, and even shaft, will keep you on your desired heading - ensuring that your head isn't sullied by any unexpected grounding. Gotcha.

@TheRoostersGarage 8 ай бұрын

Wow!! I always wondered how a compass in a metal ship was even remotely accurate. Now I understand there are a lot of things at play I never knew. Thank you for a very good explanation on a very complicated topic correcting such a simple navigation tool.

@TheRoostersGarage 8 ай бұрын

@@Ronaldo-ue5if Thanks for the offer, but I'll stick with the one true God

@alextheboatguy399 8 ай бұрын

This is why ships should be referred to as males

@KG-ds2fj 8 ай бұрын

Nah

@mohameddarwish255 8 ай бұрын

Yah@@KG-ds2fj

@ZShadowplayertet 8 ай бұрын

NAH FOOL

@alexandruraresdatcu 8 ай бұрын

Except the wooden ones, and the glasfiber ones,... and the carbonfiber ones,... and the aluminium ones....and the stainless steel ones....

@CMDRSweeper 8 ай бұрын

Interestingly, the Russians refer to ship as males, while the west uses female designation for them.

@argonk 8 ай бұрын

I spent 25 years with the only notion that they are "to compensate for magnetic interferences", but never investigated the heart of the matter. Thank you for this video. How revealing! Would be interesting to know how to correctly dimension these balls and the other devices.

@banba317 8 ай бұрын

Wow... who knew how complicated this process is? How much trial and error it must have taken over many years to fine tune it! Fascinating!

@bluekewne 8 ай бұрын

Well you see when a mommy ship really loves a daddy ship...

@ImieNazwiskoOK 8 ай бұрын

... and after some time they give berth to a baby ship

@johnt.inscrutable1545 8 ай бұрын

Great explanation of “Swinging the Compass”. The same kinds of problems occur on airplanes as well. We have to record the errors that remain on a small card that is kept with the compass for our Cessna 172. We also want to take into consideration that vertical component that will cause a compass card to dip as one gets closer to one of the poles. The dipping of the card can actually cause the compass card to get stuck and not spin toward its new reading in some cases.

@TheJohn8765 8 ай бұрын

Damn. Ingenious and yet so simple. So 'simple' I wouldn't have thought it was a problem until I ran into a reef. Institutional knowledge is fantastic (and humbling). Thanks so much for sharing!

@jorgicostava7217 8 ай бұрын

More than three decades have passed since I first played, "The Secret of Monkey Island." Only *now* am I learning that "monkey island" was a double entendre. Nice video!

@Welgeldiguniekalias 8 ай бұрын

Same here, I had no idea.

@garybuttherissilent5896 8 ай бұрын

Nice comment!

@MervynPartin 8 ай бұрын

That was absolutely fascinating- a far more complicated set-up than I had previously thought. I've searched my now-fading memory, but I do not remember magnetic compasses on any of the ships upon which I sailed, although I have seen these binnacles elsewhere. I remember the gyrocompasses. Iron ore from Canada was a frequent cargo, so I imagine that prior compensation for that would be very difficult for magnetic compasses.

@julianbrelsford 8 ай бұрын

Nowadays just have your GPS device tell your your position, speed, and direction?

@yourpalpalmetto979 7 ай бұрын

@@julianbrelsford it's always good to have backup equipment and especially goof to have them working independantly of your electronics.

@JavierCR25 8 ай бұрын

This is by far one of the best videos you’ve made. Not only is this a very obscure fact for those of us who don’t know much about ships, but the explanation was brilliant.

@corolla94 8 ай бұрын

This analog way of correcting the liquid compass is very interesting. In robotics, we normally take readings at various rotations and compensate mathematically.

@richardcranium3579 8 ай бұрын

Many men compensate by getting a bigger boat.

@dougaltolan3017 5 ай бұрын

That's called a deviation chart. It's easy for electronics to take a reading, apply the deviation and obtain a true result. For people, that extra step is a pain in the butt, so correcting the sensor is preferable.

@tomkandy 8 ай бұрын

Wow, I knew the approximate function of a binacle, but no idea how it actually did the compensation. That's a fascinating technology, and much more complex than I imagined.

@ralphwaters8905 8 ай бұрын

I had a magnetic compass in my car many years ago and the effects of chassis magnetism were significant. It was educational to watch the compass needle jump when I hit the starter and 500 amps flowed thru the battery cable and the motor's windings below the transmission.

@calex007 8 ай бұрын

Gotta be one of the best videos you’ve ever made. Thoroughly fascinating at well explained. Thanks, this is wild to think about!

@monabuu 8 ай бұрын

"Kelvin's Balls" is truly one of the names of all time

@fuzzygenius 8 ай бұрын

A great practical application of what I learned in my electromagnetism course!

@dougf94912 8 ай бұрын

Excellent explanation and clear simple graphics, as always!

@Todd66 8 ай бұрын

I had zero clue this was a thing, but it makes perfect sense when presented in such a easily understood and assimilated format. What a cool channel

@wormyboot 8 ай бұрын

I've been designing a modern nation to use in a novel I'm writing and you've made things more difficult in the most fascinating way. I love your channel.

@hchskxnbcj 8 ай бұрын

Have you already thought about the shift of the whole earth's magnetic field which also has to be thought of?

@DreadX10 8 ай бұрын

@@hchskxnbcj And how about local deviations due to large iron-ore deposits (for example) in the Earth's crust? There are places on Earth where the resultant magnetic moment is so weak that the viscosity of the fluid the compass is floating in starts to interfere with the motion of the disk.

@randomdude8877 8 ай бұрын

Very interesting insight about the magnetic compass

@GHTOONGHTOON Күн бұрын

This is why Seamen have Casual Navigator...Cheers for the amazing , on point and explicit sharing/knowledge :D

@johnnyhollis9977 8 ай бұрын

Excellent video on a reasonably complex subject. Amazing that this stuff was being worked out on the introduction of iron steam ships so long ago too! 👍

@jimturpin 8 ай бұрын

I have seen those balls, I knew they had something to do with correcting the magnetic error induced by the metal of the ship but I had no idea of the extent. This video sort of blew my mind!

@depressed_neutron 8 ай бұрын

Probably the weirdest title of a casual navigation video 💀

@FriendlyAC130Pilot 8 ай бұрын

He knows exactly what he's doing 😂

@CyclicPilot 8 ай бұрын

Great video as always! I'd love to see you playing more Nautis Home. The aspect I struggled with most is straightening up a ship after exiting a turn (in a confined space) - the ship always wanted to drift to the outside of the turn, i started to get used to it but haven't really nailed it

@michaelguerin56 8 ай бұрын

Thank you. I had wondered how the two visible balls could do everything and now I know that are just one part of a more complex system.

@MrEwoud342 8 ай бұрын

Could have used this channel 10 years ago in maritime academy. But great explanation , keep it up.

@mumujibirb 8 ай бұрын

ah yes, more calibration magic

@michaelfisher7170 8 ай бұрын

I learned about ship's magnetism today! Thanks for the vid! New subscriber!

@robbabcock_ 8 ай бұрын

Thanks for an amazing & fascinating video! I had no idea about this. What ingenious solutions!

@cameronland5934 8 ай бұрын

"All ships have a box with one ball on each side of a central tower", yet ships are still referred to as she.

@RJNoe 8 ай бұрын

Because it’s strapped onto the ship

@thelastwoltzer 7 ай бұрын

That's exactly what I thought 😅

@carltonleboss Ай бұрын

They're also filled with seamen

@PianoKwanMan 8 ай бұрын

Imagine trying to explain this on a blackboard... 🤯

@kdupuis77 8 ай бұрын

Excellent video! Nowadays, ships are required to swing annually (or as needed after major maintenance or alterations) to develop an update deviation card, with a certified compass adjuster present to make any needed adjustments biannually.

@Varangian_af_Scaniae 8 ай бұрын

Really interesting video about something I have never heard of before. A follow-up video about when they noticed this magnetic behavior and when, how they/who solved it.

@stevenharpervw 8 ай бұрын

I watched this. I understood it. Still couldn’t explain it to anyone else and have no idea how engineers even figured all of this out

@timharig 8 ай бұрын

Math. This is simple vector arithmetic.

@kennethjackson7574 8 ай бұрын

It wasn’t all solved all at once. For instance, it was Flinders who understood that the Earth’s magnetic field has a vertical component to it and developed a way to compensate for it. One problem, one solution to that problem.

@xnatov2334 8 ай бұрын

Can relate to it

@pigmentpeddler5811 8 ай бұрын

most in depth description of balls I've seen in a while

@ikman4006 8 ай бұрын

Let’s not pretend like we didn’t all chuckle when we read the title.

@Rose-yx6jq 8 ай бұрын

I came for the jokes. But this was a very interesting watch.

@starbomber 8 ай бұрын

I've calibrated an aircraft compass. Similar principal but a radically different looking device. (There's also a lot less iron in an airplane, not as much less as you might think, but certainly a lot less than a ship. The radios cause more interference in an airplane :p )

@YounesLayachi 8 ай бұрын

What part of a plane is made of iron ? Also a typical cargo or passenger plane is at least 100 times lighter than a cargo ship

@stevenschnepp576 8 ай бұрын

@@YounesLayachi Hence the parenthetical note.

@b43xoit 8 ай бұрын

Principle.

@starbomber 5 ай бұрын

@@YounesLayachi the base structure is usually steel, or a steel aloy (which has iron in it.). The skin is aluminum and some of the frame can be, but a lot of the structure is steel. Titanium is sometimes used but that metal is very expensive so, the entire plane can't be made of titanium unless you have infinite money.

@ErikPelyukhno 8 ай бұрын

This is an excellent explanation, thank you!

@caseyrevoir 8 ай бұрын

Astoundingly cool and simple explanation! I was spell bound.

@riptide8103 8 ай бұрын

In the Coast Guard we just use a deviation table, with different values for each heading, but this is cool to.

@casuallystalled 5 ай бұрын

Aviation also uses deviation tables

@joostvhts 8 ай бұрын

Haven't watched yet, but based on the title: how else would we get new ships?

@flightmaster178 8 ай бұрын

My wife and I were just wondering what those were for. Thank you for the clear explanation and video!! Also, it's crazy how fast they realized this when shipbuilding with iron ships. Ships such as the Titanic had them, and I was on a WWII ship that also had them. So it really shows there were insanely smart people back then.

@antoniolewis1016 8 ай бұрын

Thank you, as a resident of a landlocked state I really appreciate this information!

@freeagent8225 8 ай бұрын

You can say Afghanistan😅.

@derHutschi 8 ай бұрын

great explanation most ships also use a gyro compass and have the magnetic compass as a backup

@Chris-hx3om 8 ай бұрын

A gyro compass sill uses a 'north seeker' to counter the 15 degrees per hour drift (thanks Bob) due to a gyro being locked to the universe, not the Earth. A magnetic compass isn't just backup, it's required by maritime law.

@filanfyretracker 8 ай бұрын

@@Chris-hx3om makes sense as a law, a magnetic compass requires no external power. Unless its physically damaged it will very likely always work. A good compass, a clock and a sextant and a ship can be navigated if all electrically powered gizmos are not in a reliable state for some reason or another.

@ViacheslavTaran 8 ай бұрын

This whole channel is so good!

@ViacheslavTaran 8 ай бұрын

I agree.

@haraldviberg534 8 ай бұрын

Did you forget to change your acc?

@gerrychen 8 ай бұрын

This was a surprisingly fascinating and informative video. I'm surprised it doesn't have more likes!

@nunessilva2162 6 ай бұрын

Amazing explanation. Great video, thanks

@simonabunker 8 ай бұрын

Do commercial ships ever get degaussed? Or is that more of an anti mine precaution for military ships?

@PrezVeto 8 ай бұрын

Why would they? Just for the astronomically unlikely case they encounter a mine? To avoid disrupting their magnetic compass a little bit?

@PrezVeto 8 ай бұрын

Maybe I should watch the video first. 😅

@PrezVeto 8 ай бұрын

Yep, I should've.

@dangerousnoodle8779 8 ай бұрын

Cost I imagine. Degaussing isn't permanent and ships would have to get degaussed regularly. Seems infinitely less complex and cheaper just to stick some magnets in the compass and call it a day, especially in the age of GPS

@ImieNazwiskoOK 8 ай бұрын

@@dangerousnoodle8779 Way more complex and expensive than GPS but in principle there are also gyro-compasses (and them as well as GPS tell the true north quite easily)

@BoopBobBeep 8 ай бұрын

It took balls to operate a ship!

@callistofluff 8 ай бұрын

In both ways

@callistofluff 8 ай бұрын

What@@Ronaldo-ue5if

@95Gabe 8 ай бұрын

Things you didn't know that you didn't know. Fascinating. This is KZfaq at its best. Thank you.

@davidhill5798 8 ай бұрын

Not sure why you called your channel "Casual Navigation" -- you explore serious topics in great depth & detail ! Thanks for the excellent education. !

@Shinyworldwide 8 ай бұрын

so if one gets kicked by a woman they still have another one

@Luke-bf1wt 8 ай бұрын

to find if it’s a mail ship ofc

@whitcwa 8 ай бұрын

A great explanation! I never knew how complicated compass compensation was. When I visited the battleship USS Iowa I found the binnacle tucked away in a area which was not normally manned. There was a sign nearby which said something like "NO CUTTING OR WELDING IN THIS AREA".

@craigcorson3036 8 ай бұрын

I've always known what the binnacle was for, but I've never known just how it worked. Nice explanation!

@Hybris51129 8 ай бұрын

My question is when all of this was discovered and figured out?

@thisnicklldo 8 ай бұрын

Mostly between 1850's and 1880's i.e. in the first 30-50 years after iron ships became the dominant form. Some stuff was known earlier, and I imagine the precision of the adjustment increased steadily over the following 150 years, like most machines.

@thisnicklldo 8 ай бұрын

@@mckidyl70 Knowing about magnetism isn't the same as swinging a compass, is it? Show me any evidence for Egyptian use of magnets and soft iron to adjust compasses in binnacles.

@jarrodfreeburg979 8 ай бұрын

Epic title

@geraldhardy4257 8 ай бұрын

Very educational ...thanks for increasing my knowledge

@RyanK-100 8 ай бұрын

Wonderful explanation and graphics.

@JanRademan 8 ай бұрын

Any technology sufficiently advanced will be like magic.

@Geckuno 8 ай бұрын

There is you and there is the Lock pİCKİng Lawyer, both great at their respected jobs, and even if I don't understand everything I get and idea, and furthermore its a delight to watch both you guys' videos. Thank you

@freesk8 8 ай бұрын

Cool! Thanks! I had always assumed that having the green and red balls had something to do with preventing some kind of psychological disorientation in fog or rain? Glad to know the right reason!

@DuckyTheFox 8 ай бұрын

Never before have I seen a video about balls that was so informative

@dj_laundry_list 8 ай бұрын

Makes me wonder why I have the same

@nicky_kitty_777 8 ай бұрын

cursed youtube titles that should be illegal

@dandinzin 8 ай бұрын

You knew exactly what you were doing with that title and thumbnail

@hart-of-gold 8 ай бұрын

A quick google search shows a wide use of the pun. And it is named for Matthew Flinders who was the first to circumnavigate Australia (the reason I was searching (Aussie)).

@Vivi-yw1eu 8 ай бұрын

Amazing title

@randomcontent1736 8 ай бұрын

tldr: because if one is destroyed by for example a kick theres another one

@exoplanet11 8 ай бұрын

Fascinating. I'm so glad GPS technology didn't come along earlier. It is so cool to think about all of these factors as the earlier ship designers did.

@zoiuduu 6 ай бұрын

well, i assume a submarine also has a compass like that, and it cant use gps

@Airships 8 ай бұрын

Wow! Fascinating. Thanks!

@srhenryx7416 8 ай бұрын

Ship just like me fr

@TuriGamer 8 ай бұрын

Well thats a rude question

@spitalul2bad 8 ай бұрын

This is one of your best videos.

@vinniec5286 8 ай бұрын

Wow! very informative. Thank you. I just like and subbed.

@ErnestoGluecksmann 8 ай бұрын

I'm going with gps. This is way too complicated.😂

@bigtall25 8 ай бұрын

I think most ships do use true north instead of magnetic north for most applications, but it's still handy to have a compass around.

@HugeRademaker 8 ай бұрын

Clearly you have no idea how complicated GPS is. 😅

@ErnestoGluecksmann 8 ай бұрын

@@HugeRademaker True. True. Yo, Casual Navigation. We need a video on it! 🤣

@bagochips1208 8 ай бұрын

Pee is stored in the.

@TheFeldhamster 8 ай бұрын

Thank you, this was super interesting to someone who has no relationship with ships or navigation at all. Idk why this was in my recommended, but I do not regret clicking on it. Nice!

@PhillipBicknell 8 ай бұрын

I was briefly a suspect during my Day Skipper practical when the electronic compass on the yacht went wrong - the skipper knew I'd bought a large stainless steel cooking pot in the previous port. Thankfully, he soon ascertained that my purchase wasn't at fault, and to this day - over 20 years later - the pot still serves me well for a monthly batch of stew 🙂

@maastricht.mapper 8 ай бұрын

It's because they aren't an Austrian painter

@HiraethWTM 8 ай бұрын

Now, this proves ships are "he"

@jimread978 8 ай бұрын

Excellent expiation. I’ve had to degauss two aircraft to remove strong magnetic fields, one induced by a lightning strike and one from being parked for a year adjacent to an iron support beam. Talked British Airways into doing the latter as an apprentice training exercise.