As per request!

Mar 20, 2017 9:34 AM

Self-leveling pool table on a cruise ship.

This gif made it to the front page showing off a self-leveling pool table on the cruise ship. ("Original" post http://imgur.com/gallery/uLMkFEi)

User @strakur mentioned that a whole boat should be made like that but he didn't know that the idea had been tried!

Ladies and Gents meet the SS Bessemer! The dumbest ship you'll probably ever see. You see the SS Bessemer was meant to combat seasickness by having a swinging cabin. To give you some background on this ship, the engineer and inventor was named Sir Henry Bessemer and he suffered from severe seasickness. He dreamt up a solution for himself where a ship would have a passenger cabin (aka the Saloon) would be suspended on gimbals to keep them stable at all times! Great idea right?

Of course, it was! A boat that could set sail and a place where passengers could relax without becoming seasick? In theory it was perfect; however, the theory was just a theory to know for sure the boat had to be built. So it was that the SS Bessemer came into being. A 4 paddle steamer boat it was designed to carry strictly passengers and some cargo. After its completion in 1874 it launched on september 24th the same year on course from Dover to Calais on a private trip.

Well, lemme hit you with some mild shock! It crashed as soon as it pulled in because it couldn't answer to the helm at slow speeds. That didn't deter good old Sir Henry tho and on the 8th of May 1875, it set sail again for Calais full of passengers. Surprise surprise it crashed again and this time one of the cabins locked up and the crash destroyed part of the boat. After only two voyages, both of which ended in failure, the ship was decommissioned and was later sold for scrap in 1879 and the saloon cabin was used as a billiard room at Hextable House (Kinda weird that the post went full circle back to billiards...). However, when the house became a women's college it was turned into a lecture hall that was later bombed to ash in WWII. Some pieces still survived and in 2012 were valued at £300 - 400 on Antiques Roadshow.

Warship tax. USCGC Eagle Class Training Barque

Edit #1: Some people have decided to create similar functioning boats using modern tech. Here is a video of one such attempt as mentioned by @ILikePicturesCauseFunny https://www.youtube.com/watch?v=Nor6h3c8TYc&feature=youtu.be

science_and_tech

hit_ya_with_some_knowledge

warship

9 years ago | Likes 5 Dislikes 0

One of his other inventions being the Bessemer cauldron, with which he invented steel as we know it today..

9 years ago | Likes 5 Dislikes 0

hey, thanks for the credit! I meant it tongue-in-cheek but am now really glad to have learned this!

9 years ago | Likes 5 Dislikes 0

9 years ago | Likes 50 Dislikes 0

I like the part where OP used Wikipedia almost word for word in his description.

9 years ago | Likes 3 Dislikes 2

I like the part we're OP used one of the only available sources to source his post. It's almost like he read it or something. Shocker.

9 years ago | Likes 3 Dislikes 0

Ah yes, the USCGS Eagle, as featured in the Nantucket Series by S. M. Stirling.

9 years ago | Likes 2 Dislikes 0

I've heard about that. Is it any good? Might pick it up if it is.

9 years ago | Likes 1 Dislikes 0

boss af +1

9 years ago | Likes 2 Dislikes 0

One of my favorite Youtube shows, Citation Needed, did an episode on this: https://www.youtube.com/watch?v=2otrhYbE0b8

9 years ago | Likes 3 Dislikes 0

Yes, I love Citation Needed! SS Bessemer’s non-wiggly wiggly bit!

8 years ago | Likes 1 Dislikes 0

Someone should put this technology under a toilet I wonder if it would be crazy weird to shit perfectly still while everything else rockin

9 years ago | Likes 2 Dislikes 0

+1 for the CGC Eagle

9 years ago | Likes 7 Dislikes 0

I know it from an alt-history book series

9 years ago | Likes 1 Dislikes 0

Not a physics major but wouldn't having the entire interior of the boat be gyroscopically stable horribley mess with the stability ?

9 years ago | Likes 2 Dislikes 0

Yes, and it did.

9 years ago | Likes 2 Dislikes 0

Aaand now i'm sea sick. And I'm a boat captain.

9 years ago | Likes 3 Dislikes 0

From what I have read a big problem with that ship is that it only had roll stabilization. So people got even more sick.

9 years ago | Likes 3 Dislikes 0

How long have you been spying for Soviets?

9 years ago | Likes 3 Dislikes 0

I've never. Pure American. Many many Big Macs and love for eagles and freedom.

9 years ago | Likes 4 Dislikes 0

The Eagle is a ship that was used for training Nazi youth. Hitler was at it's original launch

9 years ago | Likes 2 Dislikes 0

YUP! We took it in 1947 I believe. Hopefully I'll get to see it in real life at least once after I join the CG.

9 years ago | Likes 2 Dislikes 0

Awesome! I have seen it many times while crossing over the bridge to New London from Groton, CT. Great ship

9 years ago | Likes 2 Dislikes 0

Ah, the important things..

9 years ago | Likes 3 Dislikes 0

I would throw up on that pool table

9 years ago | Likes 8 Dislikes 1

This doesn't mean it was a bad idea, just that the one person who tried to solve the issue so far failed. A long time ago.

9 years ago | Likes 3 Dislikes 0

It is a terrible idea, ships are just to large. To truly compensate for all movement you need a gigantic structure to house even a few ppl

9 years ago | Likes 2 Dislikes 0

Its a horrible idea in this form and scale. Check out the link I added in the edit to see a modern boat with the same idea.

9 years ago | Likes 1 Dislikes 0

Just because something doesn't work now/yet doesn't mean it's a bad idea! A boat that wouldn't make you seasick is a great problem to solve!

9 years ago | Likes 1 Dislikes 0

I feel like it's not as useful now. It was a way to travel then but now we have better cars and planes. Idea isn't worth much now.

9 years ago | Likes 1 Dislikes 0

9 years ago | Likes 5 Dislikes 1

v

9 years ago | Likes 54 Dislikes 1

.

9 years ago | Likes 1 Dislikes 0

I wonder if that was his 4th try or the 4000th

9 years ago | Likes 6 Dislikes 0

Was that Paul Blart?!

9 years ago | Likes 3 Dislikes 0

Dude Perfect

9 years ago | Likes 1 Dislikes 1

Fuck yeah, USCGC Barque Eagle! We took that ship from the Germans after WW2! Also, cadets training to be officers spend weeks on that ship.

9 years ago | Likes 3 Dislikes 0

So was there gimballing for pitch and yaw as well? Why not have it lock for docking manoeuvres?

9 years ago | Likes 35 Dislikes 1

Ladies and gents we have an engineer in the buolding

9 years ago | Likes 2 Dislikes 0

Ask sir henry, it may have worked better.

9 years ago | Likes 21 Dislikes 0

In your opinion, is there any validity in pursuing this design, or is it just a neat idea?

9 years ago | Likes 2 Dislikes 0

Just a neat design whose practicality is limited. Since we don't have to just sail from point A to B anymore it's pretty worthless.

9 years ago | Likes 1 Dislikes 0

Locking that much moving weight in sounds crazy difficult

9 years ago | Likes 6 Dislikes 0

Buttress sliding in from the side would do it, one side at a time; use the steam to pressurise dampening shocks?

9 years ago | Likes 1 Dislikes 1

Nothing a few strong electromagnets can't solve nowadays. Would have been very hard to do back then though looking at that schematic

9 years ago | Likes 1 Dislikes 0

In 1870s? Probably impossible to do safely.

9 years ago | Likes 7 Dislikes 1

Bah, nothing anyone did back then was safe

9 years ago | Likes 2 Dislikes 0

Well, no one in the 1870s gave a flying fuck about safety.

9 years ago | Likes 4 Dislikes 0

Very good point

9 years ago | Likes 3 Dislikes 0

There's a pretty great Stuff You Missed in History podcast about it that covered some of those details.

9 years ago | Likes 2 Dislikes 0

But mostly keep in mind that things you take for granted as common knowledge were learned by guys like this making mistakes in the 1800s.

9 years ago | Likes 2 Dislikes 0

If someone gave it a go now, things like that would be done. It could be done these days

9 years ago | Likes 4 Dislikes 0

Could be done then as well. They had door latches. Same principle but on a larger scale.

9 years ago | Likes 1 Dislikes 1

I dunno, I've had to do stability calculations for ships at uni. Most of the knowledge is fairly recent. I think if this ship had survived..

9 years ago | Likes 1 Dislikes 0

It wouldn't have lasted very long at sea.

9 years ago | Likes 1 Dislikes 0

These bros are trying to make a modern version... http://imgur.com/k4gIlrA

9 years ago | Likes 3 Dislikes 0

Seems like a much more stable design than what Henry thought up. When I get back from classes I'll add this to the post!

9 years ago | Likes 1 Dislikes 0

A wild ride from start to finish

9 years ago | Likes 3 Dislikes 0

I feel like the floor moving in relation to the table surface would be incredibly distracting when taking a shot.

9 years ago | Likes 216 Dislikes 0

y'ever played pool drunk?

9 years ago | Likes 1 Dislikes 0

The floor moves a lot under my feet when I take a shot, and I'm not even playing pool. I may have a problem....

9 years ago | Likes 3 Dislikes 0

I feel like the balls moving in relation to the table surface would be at least as distracting.

9 years ago | Likes 7 Dislikes 0

Not really standing on a cruise ship fees pretty stable but to keep rounded objects from moving takes a bit more effort Src:Sailing 5+ years

9 years ago | Likes 88 Dislikes 0

I think you would like my dad, he bought a concrete sailboat and lived in the Bahamas for a few years

9 years ago | Likes 2 Dislikes 0

Concrete? Damn that's impressive! Love to see some pics of the hull and how he figured the math for buoyancy.

9 years ago | Likes 2 Dislikes 0

It's an old New Zealand design called a Queenslander. Here's a quick, low quality picture of it The left one.

9 years ago | Likes 2 Dislikes 0

Looks nice. I always wanted to live on a boat. Lived in the Bahamas 3 months out of the year for a few years back in high school though!

9 years ago | Likes 1 Dislikes 0

IIRC most "concrete" boats are made using tiny glass bubbles in place of sand and aggregate.

9 years ago | Likes 3 Dislikes 0

I'll look into that for sure. Sounds super neat.

9 years ago | Likes 2 Dislikes 0

I've been on ferries and agree its not really noticeable, but your stance relative to the table would be constantly changing, wouldn't it?

9 years ago | Likes 25 Dislikes 0

I imagine someone at high levels of play would notice, but not a casual player

9 years ago | Likes 7 Dislikes 0

Judging off these two guys, the people in the back and the camera man all seeming completly level I would assume no? I havent got a clue tbh

9 years ago | Likes 9 Dislikes 0

Should've been catamaran tax.

9 years ago | Likes 4 Dislikes 0

Nah I don't really like catamarans.

9 years ago | Likes 1 Dislikes 0

#2 is that a guy getting seasick in the top left of the schematic? (The area that doesn't rotate)

9 years ago | Likes 3 Dislikes 0

I think what was to prove a point via illustration.

9 years ago | Likes 1 Dislikes 0

Yesss, favorite post ever. <3

9 years ago | Likes 2 Dislikes 0

Thank you!

9 years ago | Likes 2 Dislikes 0

Crazy for ships/cruises here. Loved it a lot

9 years ago | Likes 2 Dislikes 0

Can you explain "couldn't answer to the helm at slow speeds"?

9 years ago | Likes 26 Dislikes 0

I'm assuming that the rudder configuration wasn't adequate. Probably not enough water flow over it at slow speed.

9 years ago | Likes 2 Dislikes 0

They also may have placed too much confidence in the paddles to make small course corrections when the speed too slow to use the rudder.

9 years ago | Likes 1 Dislikes 0

The boat was nonresponsive to steering at low speeds such as the speed a boat would dock. I am unsure as to why but id assume 1/2

9 years ago | Likes 25 Dislikes 0

That it was due to the swinging saloons weight continuing forward/backward when the ships engines speed up or stopped. 2/3 < I lied

9 years ago | Likes 23 Dislikes 0

E.g. The boat is going at travel speed and the saloons sway to maintain level so all is well. Boat begins to slow but the saloons weight 3/?

9 years ago | Likes 21 Dislikes 0

Causes it to be thrown forward and the boat begins to drift even in reverse. Boat then hits docks and geting dinged up. 4/4

9 years ago | Likes 20 Dislikes 0

Thank you for explaining!

9 years ago | Likes 1 Dislikes 0

So to dock successfully, it would've taken herculean navigational planning and cutting the engines much earlier than is normal, right?

9 years ago | Likes 9 Dislikes 0

What if someone tried a redesigned version woth todays technologies and shit i reckon itd be cool

9 years ago | Likes 4 Dislikes 0

It may work but in all honesty cruise ships and even small 110' boats are pretty smooth. Then again i spend a lot of time one board them.

9 years ago | Likes 3 Dislikes 0

That's the first time I ever heard anyone describe the ride on a 110' as 'pretty smooth'

9 years ago | Likes 1 Dislikes 0

Smooth enough for sea legs that is. Raised around boats and the like. Probably Could stand still in a hurricane. I'll video if it I can!

9 years ago | Likes 1 Dislikes 0

I have only heard complaints about the stabilizing system, caused too much jerking. Still not bad for Cutters only meant to last 10 yrs.

9 years ago | Likes 1 Dislikes 0

I set foot on a couple, never went for a ride though. 41', 82' and 210' were my platforms

9 years ago | Likes 1 Dislikes 0