Shipbuilding and a test if your big enough

Lay down the keel

Lay down the keel


While doing a little tidying up I came across a model kit to make the Titanic. I have had it a while and seem to remember that one of my granddaughters bought me it for last Christmas.
Opening it up and looking at it sort of engrossed me and I got carried away and started to assemble it. About half an hour later it was done and given pride of place on the shelf.
It was in 1912 that the liner hit the iceberg and sank, that’s over a hundred years ago now. None the less it’s sad to think of the predicament all those people were in. My wife had a Great Uncle who crossed the Atlantic in 1912 to start a new life in the USA. Fortunately not on the Titanic.
The First World War started two years later and the Spanish flu epidemic followed that but the Titanic tragedy still haunts our world today.
ready to launch

ready to launch

…………………..

And now to change tack completely;
If you read the last posting and are intrigued use this One-Off-Pad list try to solve this code.

QWJMDCVFNZGAENPJUHRS (A=1 through to Z=26)

The message you received was this: DRXQED SGG SOBPSIZZIJX

footnote: I can’t be sure but I seem to remember having to add 1 or subtract 1 when coding. Something to do with not using 0 as that would not work. Perhaps ‘A’ should be 0 and on through the alphabet until ‘Z’ equals 25. As I can’t remember at the moment what to do I am not able to enlighten you. I still can’t find Simon Singh’s book, it seems I will have to buy it again.

(Cypher or Cipher, they are both correct spellings)

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Codes and Ciphers

20141121
Unbreakable Codes

I’ve been ill, nothing serious, a cold, but it flattened me and for three weeks I couldn’t be bothered with anything.

Last week we went to the cinema to see the new film about WW2 code breaking at Bletchley Park titled ‘The imitation game’. The code breakers worked on the Enigma machine with its rotors and plug cables and broke it. After the war was won the government kept it quite and made and sold Enigma machines to many countries around the world then secretly read everything they sent. Devious or what? The film was entertaining and it seems also to follow the truth. I thoroughly enjoyed it myself.

Reading up a bit about it later it transpired that after the war the Russians must have been warned by their Oxbridge spies because they only used the unbreakable ‘one off pad’ system from then on. The OOP system has a list of random letters that code a message one letter at a time so there is no mechanical pattern to follow or break, letter frequency and Caesar Shifts weaknesses are not present. The sender and the receiver must both have the same list of letters so in fact there is always at least two copies of every OOP. If there wasn’t then it couldn’t be decoded by the receiver. The usual thing is to only have two copies that are then burnt after coding by the sender and the decoding by the receiver. I don’t know if a mechanical method of doing either exists but if the message is important enough to warrant OOP coding then all electronic handling should be avoided.
There is a wonderful book about it by Simon Singh called The Code Book, if you are at all interested it is, like all his stuff, difficult to put down. I must have loaned someone my copy because for the life of me, I can’t find it.

Here’s how OOP works:

Two people have the same list of random letters.

Say/ mcjdiesntoifdndio. (I just typed those blind.)

Each letter has a number as in A = 1 and O = 21 and Z = 26 all as their position in the alphabet.

Lets say my message is; urgent message

The OOP code is; MCJDIESNTOIFDNDIO
The message is; URGENTMESSAGE

so U is 21 + M that is13 = 34. 34 is of course more than the max 26 letters but you simply roll around the alphabet in a continuous circle so subtracting 26 from 34 leaves the number of the code letter. 34 – 26 = 8. The 8th letter of the alphabet is H so the letter to send in place of U is H.

R18 + C3 = 21 which = U. So for the second letter, R send U. It doesn’t matter that the previous letter was U as it’s a coincidence. It is possible to send the same letter when Z is in the OOP but it doesn’t matter, it is actually important that this is possible. One Enigma weakness was that an encoded letter could never be the actual letter to be encoded.

Decoding is the reverse;

You receive a message HU etc.
You have the One Off Pad list.
MCJDIESNTOIFDNDIO (That was a surprise, after typing the MCJ this computer filled in the rest of the code above for me. Shows that even with OOP there are weaknesses to be aware of.)

Anyway; H = 8 so subtract (the reverse of before) the M that represents 13 and it doesn’t work out in this combination does it? So add 26 (to roll around the alphabet) to the 8 and that is 34, now subtract the 13 and it leaves 21. 21 is letter U. That’s our first letter in plain language.

Next letter received is U. So U21 minus the next letter in our OOP series, C3 gives us 18. 18 is the letter R. Our second letter is R.

We have UR as the first two plain text letters of our message. URgentmessage.

Unbreakable but long winded.

The Russians must have mechanical machines that print out OOPs with two lists of random letters and a reference number at the top of each half that have to be delivered to Embassies around the world on a weekly basis. That is unless the computer has so many combinations that it is unbreakable now a days. Would you risk it?

There is a theory in academic circles that one day they will be able to break this code too but I doubt it. The test is a something about a cat in a box. Can we predict that the cat is dead or alive without opening the box? It’s a stupid construct of course because although they mean can it be predicted it is full of holes in the sense that the cat could scratch or meow or give off Carbon Dioxide. They don’t count in the experiment of course but it’s a daft construct because of this.

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Pigeon Holes

Pigeon Holes – Short Story – ARM 12\10\14

My Auntie Mary used to work in the Coop in the city centre in the 1960s. I have a photograph of her filing mail into brown, wooden pigeon hole boxes that covered half of one wall.

One Friday I was in the shop with mum when Mary spotted us and asked her sister and niece if we wanted a cup of tea in ‘her’ office. For that day only it was indeed hers as the boss was away on some course or other. The place was dark and dingy by today’s standards with dark brown wood everywhere. The desk the chairs the shelves; even one wall was panelled in dark wood. The only up-to-date features were a telephone and a curious vacuum pipe messaging system in one corner. It had containers that Mary called ‘pigs’ that opened with a twist so money or messages could be placed inside.

My awareness of this contraption was only triggered by the arrival of an incoming Pig that made a ‘whoosh’ and ‘thunk’ sound as it arrived in the receiving sabot. I jumped in my chair as I had my back to it and mum and Mary laughed at my fright. Mary then showed me how it worked. Money and\or a receipt would be placed in the Pig and it would then be pushed up into the outgoing tube and a lever pulled. The Pig would then be sucked into the tube and sent on its way to the accounts department for action, usually the correct change and a receipt for the customer. She then wrote a short note for her friend in accounts and let me post it into the system. Some 30 seconds later a Pig arrived down the second tube with a jokey note addressed to me from her friend saying did I want a job. Why it was in the managers office was a mystery as its only use was for sales accounts. The main messaging system was the pigeon hole system where mail was collected and delivered thrice daily by the in-house post office.

When I look at the photograph now I realise that that was how Aunt Mary ran her own life. The tube messaging system was akin to her relationship with her family. Her two sisters and dad plus us nephews and nieces were important to her as her family but we never really knew about her other life in the pigeon holes. The pigeon hole lives were kept apart from the tubes lives and remained that way until the day she died.

Her death was as sudden as it was shocking and we were all grateful that granddad had pre-deceased her. There was no ‘Last Will and Testement’ to be found but during the quest to locate one in her little terraced house all of her secrets came out.

She had never married but we found a locked box that was soon opened. It contained photographs, cards, letters and two certificates. The first certificate was the registration of the birth of a boy where she was named as mother but father was left blank. From the letters it was revealed that ‘Martin’ as she had named her son was a childhood resident of a Children’s Home for the handicapped on the coast. Martin had sent cards for her at Christmas and on her birthday that were written in various hands and signed by him under the printed word ‘Martin’, with a squiggle. Each squiggle was different. There were four photographs, one of him as a baby laid on a pale grey blanket. Two others were of him in a wheelchair at around six and ten years old. The last picture was of Aunt Mary stood beside him sat in a club chair at a party in the home. She had one hand on his shoulder and was smiling somewhat nervously. Martin had his head leaning slightly toward his mother and appeared to be laughing. The second certificate was the registration of his death at thirteen years and four months. My cousin had been born, lived a life and died and we, isolated in the tubes, knew nothing of him.

As the days passed the knowledge we had gained leached into each of our minds. The arranging and sorting took place but without any urgency, a kind of lethargy combined with grief seemed to blanket us all. We all talked a lot saying the same things over and over but we did little. Eventually I did take mum to see a solicitor, Mr Peters, and requested him to deal with Aunt Mary’s affairs. From his office we went to see Mrs Crockett at the Women’s Institute to inform them of Mary’s passing and to give details of the funeral arrangements. Mrs Crockett was suitably kind and sympathetic on hearing the news but, presumably to mitigate the probable lack of mourners, she gently told us that Mary was no longer a member and had not been seen at a meet for some years. It seems likely that the WI days out that Mary had occasionally mentioned were coming up were actually singularly personal visits to Martin.

As mum and Aunt Teresa worked their way through Mary’s home they discovered a ceramic teapot at the very back of the wardrobe. It was in the design of a brightly coloured steam engine. A blue silk ribbon was strapped around it with a double twist around the lid knob and finished off with a neat bow at the front thus ensuring that the lid stayed in place. Upon opening it they discovered a blue silk bag with a purse-string opening. It contained grey ashes. Both women were in tears with clamped throats and sat with the teapot between them on the kitchen table sobbing and saying the same thoughts over again. Why didn’t she tell us?

The final revelation was from the solicitor, Mr Peters. He told mum and Teresa that Mary did not own the little house that she had lived in for years, nor did she rent it. The house belonged to a Mr M Hessay who was a senior manager for the Coop in Huntingdon. Mr Peters had received a short telephone call from him to say that Mary’s family could take as long as they needed to clear the house. There were no outstanding bills nor any charges to come. He asked that when the house was cleared the keys be passed on to Mr Peters. He could not, he said, attend the funeral but sent his condolences. Who he was to Mary or to Martin he never explained.

Two days after the meeting with the solicitor the whole family, five of us, went to see Mary one last time at the Chapel of Rest. It was our last goodbye and we all passed the teapot around for us all to touch before mum and Teresa both together placed it into the coffin with Mary.

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Foiled

I had a great day yesterday. My son collected me along with three of his daughters, my granddaughters, and we went to York University (University of York in truth, a place called York in Canada got the name first). It was very busy as all the students were returning from their summer break but as we were early parking turned out to be easy. The event we wanted to see was a national fencing competition; no not fencing around fields, fencing with swords, or more correctly foils. As usual with these good ideas my son and I learnt more than the children who quickly became bored. These things always move with a graceful and steady progression so any comparison with video games is stark. That’s not to say that the first half hour wasn’t good fun for them but after that it seems to be repetitious. They didn’t have a knowledge of anyone who was partaking so had no ‘side’ to cheer on, (not that anyone cheered anyway but you know what I mean).
At first there were only men fencing each other, sprinting back and forth with the retractable cable reeling in and out behind them. There was a referee for each match and at least eight matches going off at any one time. They looked the part in the tight white breeches and socks plus the waistcoat of thick material that I assume gives some protection if stabbed. Being stabbed is not a problem of course because the foil has an electrical button on the end to prove a contact stab so the foil isn’t dangerous. The main protection is of course the wire mask that they all wear as a poke on the face or eye could be serious. In some ways they all looked like extras in a Doctor Who production.
After the first session the women started to fight/fence each other and I had hoped that this would enthuse the girls but it didn’t seem to make any difference to them and the youngest began nagging for a drink and something to eat. I told her it was wrong to eat between meals but it didn’t stop her moaning; or my son from giving her a biscuit and a drink. We left shortly afterwards with a little more knowledge than when we arrived. As we walked to the car Lauren told me that she wouldn’t mind trying to play golf again. Yes, it was an interesting outing.

Fencing field

Fencing field

I have promised to fix a TV bracket to Lauren’s bedroom wall to finish off the month of decorating she and her mum have done. I have already changed the light fitting for them as the old one refused to unscrew and so they couldn’t change the lamp shade for the new one Lauren has bought. It now seems that the swivel and tilt TV bracket is only the start, the DVD player also needs to be housed somehow so a shelf is needed to be put up to. I am sure that there is no TV aerial in her room either but nothing has been said so I am not asking. I think she only wants to play DVDs, hope so anyway.

After lunch I was left on my own for several hours and I used it wisely to tidy my garage out. There is now a pile of junk waiting to go to the tip and all my things are stored tidily away.

I then looked at the list of courses on offer for older students at the university. Some were of interest;
Eboracum: Life in Roman York
From Tsarism to Stalinism: Imperial Russia and the USSR (1914-41)
An Introduction to Geological Maps
Reading and Writing Short Stories. Online Creative Writing: Building Great Fiction
The Normans (911-1192): From Normandy to Sicily, from Britain to Antioch.

The Normans was drawing in and creative writing online was tempting but in the end I realised that I have too much on already.

The only bad news was the report from Penny later on that a lamp was displayed on the dashboard of the car. When I checked it it was a brake pad warning. I will have to ring the garage tomorrow, more expense 😦

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Holiday aftermath

Well the holiday is well and truly over and it just remains to clear away and return things to their rightful place.
The big one is the caravan. So much stuff is taken with us, (that’s the advantage my wife tells me as she can take as many possessions as she fancies) that it takes a couple of days to clear it. It is done now and the ‘van is back in storage.

Looking back it was a bit hectic being a city holiday, (Cambridge) it’s no wonder that we are a bit tired. When you go to a seaside destination you seem to relax more and do less. In a city it is more looking around and visiting places.

It’s good to have my keyboard back, a full size one I mean, the tablet is good but not for typing anything up on.

I can post some pictures now too.

Duxford War Museum

Duxford War Museum


Memphis Belle

Memphis Belle

Cambridge

Mathmatical Bridge

Mathmatical Bridge


On the River Cam

On the River Cam


A College Quad but I can't remember which one.

A College Quad but I can’t remember which one.

That’s your lot; I’m going to bed now 🙂

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Duxford

I am holiday on holiday in   Cambridge, it is famous for its University, and it makes a great place to spend time when summer comes to an end. It has turned out to be a miscalculation in that the weather is like midd summer. Nonetheless, we are enjoying ourselves. On arrival we were asked if we were going to the Duxford Air Show that was on on Saturday and Sunday. Well, we did plan to visit the Imperial War Museum that is near Cambridge but didn’t know the Air Display was on. We were lucky and got tickets for Sunday. It was a full day out and a fantastic start to our week. We spent the morning touring the museums and the afternoon on the apron watching the aircraft. It started with a simulated dog-fight by WW1 Stringbag biplanes and triplanes. Then the aerobatic planes, then WW2 machines followed by the stars of the show, 2 Lancaster bombers, 1 British and 1 Canadian. They are the last two that are airworthy. Then followed by the Memphis Bell and many others that I don’t know the names of. One was a Catalina and I did snap a picture of it. Most photos I took were blurred or half shots so not worth showing.

Catalina

Catalina


I am writing this on a tablet and I’m lost without a proper, full size, qwerty keyboard so I will leave this post at that.
ttfn

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The story so far

9 Sept 2014

No kids today so we had a lay in bed until gone 8 am. Watching TV later with a cup of tea we saw a woman of 88 who was directing a ballet first produced in 1945. She was in that production too.
The remarkable thing was that she was as fit as a fiddle. It was mentioned that she had two new hip joints and two pins in one ankle but none-the-less she was slim and supple and articulate both in body and mind. She said that she exercised every day and that the day she couldn’t be bothered was the day that was the begging of the end. After it finished Penny told me to go and do something elsewhere as she needed the room to do her exercises. I’m not complaining. Later on she went shopping so I did my routine of exercise too with a little bodyweight lifting thrown in.

There was also a lot on TV about the Scottish referendum to break away from the United Kingdom. I think that they will be a little poorer if they do but I also think that they should. I don’t like massive set ups like the EU and we should become independent states not controlled from a metropolis far away. I hope they go, even though I think I will be a little poorer too.

Is this the end for the Union Flag?

Is this the end for the Union Flag?

When Penny returned we sat in the garden and enjoyed a coffee before she set about dead-heading flowers and watering pots. She had a garden ornament bought for her birthday and that has appeared in the garden now on top of our wooden mushroom.

Things are becoming dafter around here :-)

Things are becoming dafter around here 🙂

We are going away next week to Cambridge. Not as a post-graduate thingy, as tourists. We have our touring caravan and go all over the country in it. It’s a little home from home to us and the big advantage is you can take as much stuff as you like even the kitchen sink although that would be pointless as it has a kitchen sink installed. We love it, the freedom, the travel, the meeting people and seeing so much. A common comment between us is, “we’ve been there”, when some picture is on TV from where ever. We went to the storage site today and brought it home so we can clean it and check it over then pile what we need in it.

Out of storage she comes

Out of storage she comes

After that it was off to our erstwhile daughter in law’s house to replace a broken light fitting. It was the usual 30 minute job that took over an hour because there is always a complication; I won’t bore you with the details, it’s all done now.

It doesn’t look like I will be doing any wood-turning for a couple of weeks now. Too many other tasks including having all four granddaughters after school tomorrow; no doubt they will want advance pocket-money for next week. Doh.

STORY
I have a story on the go at the moment about a youngish dowager queen who falls for her manservant. He is younger being around 24 years but falls for her too. It’s the back story that is missing. Where did he come from? how was he working for her in the Palace? What baggage does he have?
I have come up with this to start the story:

——————-
My father had an old drinking friend called Div who was a sergeant in the palace guard. He was the reason I was taken on into the army. The rough male aggression of the barracks and army life gnawed at me a lot but I roughed it with the lot of them and marched the whole Kingdom. I saw a lot and learned a lot. The hardest fight I ever had took place in a brothel in Calanto and my aggressor was a mate. He had fallen arse over tit for one of the girls in there and I had just left her room. For four years I told everyone who mattered that my dream was to be in the Palace Guard and to protect the King. In year five I was appointed to the Palace Guards. Div’s advice was sound and successful.

——————-

Well it’s a start and I do have a good idea where it’s going until he ends up working for Queenie.
Any comments will be welcome 🙂

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The Runaround

Monday 8 Sept 2014

I was woken up by the sun shining through the chinks in the curtains this morning. Arising from my bed I walked slowly to the window to look out and to my surprise felt the radiator was hot. As the thermostat is set at 15 degrees (we don’t turn it off in Summer, we simply lower the temperature) I realised that the summer is at an end.

Last week while eating a meal I chipped a tooth, one of the big ones at the back, so made an appointment with my dentist and that was for today. I aren’t that bad with dentists, not like some people seem to be, but nonetheless It’s not a treat to look forward to is it?
After a poke around he said that he could simply refill the missing bit but when I looked at him quizzically he said that things have moved on in dentistry. Modern fillers were so tough and strong now that there was no need to cap the tooth, it would repair. Well he’s the expert isn’t he so I acquiesced and in no time at all it was fixed. He was sure it would be fine and would not break at that point again. It seams dentistry is like mobile/cell phones; two or three years and things have move on by miles.

Because of the dentist I wasn’t available to collect 4 year old Anna from school so Penny had to do the run. When I got home I had the house to myself. I set up the lathe again and had another go at wood turning, it’s quite simple if you take your time and don’t push to hard. I made a test piece and turned the other end to be a transition fit when stuck it in the parasol hole of the table. I will have to buy a book on what can be produced on a wood lathe. The request for a set of Russian dolls was politely turned down. I think they are called ‘Matryoshka’ but it doesn’t make them any easier to make; perhaps I will try next year;er hum.

First Testpiece

First Testpiece

When Anna arrived with Penny I cleared away and then entertained her with my helicopter skills. I had one bought for my birthday. It’s only a few inches high and with only enough battery power to fly for 4 minutes bit fly it does. They are not expensive to buy either, 15 GBPounds will get you one. I am a little better each time I try and can now fly it to the far end of the room and half way back before crashing to the floor. I recommend giving it go, great fun except when you crash into your granddaughter’s leg and she cries because although there are no marks to be seen it does sting a little. That’s when I put it away to be honest, the snitch told Penny and she told me off. The Wright brothers nearly killed themselves and Otto Lilienthal did but they didn’t complain. Well Otto couldn’t but you see what I mean.

Later on we set off to collect Rose from school and then took them to their own home to await the arrival of a parent two hours later (The things you have to do, tsk tsk.). I sat in the sunny back garden and read some more ‘Fifty Shades of Grey’. It starts well but seem now to be flagging and I haven’t reached the sexy bits yet. I need to read them in order to write them in my stories. Make of that what you will. Recently I have been trying to write the killer opening sentence but not making much progress. No ‘It was the best of times and it was the worst of times’. Nor ‘Call me Ishmael’ nor ‘It is a truth universally accepted etc.
Mine tend to come out as a paragraph. They are good sometimes but they are not a sentence. Ah well, keep trying and you will improve I hope.

Well, that was more or less my day. I’m hoping for a rest tomorrow.

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Sunday Barbecue

7 Sep 2014

Sometimes an ordinary day turns out to be a little special, a little crowded even.

I noticed that in the booklet that they distribute Aldi stores are selling a wood lathe at GBP 89.99. Now it just so happens that I have been dreaming of doing some wood turning ever since I saw a film of an Indian fellah in Calcutta turning wooden trinkets for tourists. What was special was that he had a tiny and crude lathe that he worked with a bow; zig-zaging back and forth with his left hand to revolve the block of wood, and holding the cutting chisel with his right hand then steadying it all with his right foot. His method and skill were a joy to watch. Need less to say, I went to Aldi this morning and bought a lathe. There was a notice that said they were limited stock and after I got mine there were only 7 left. My lathe has an electric motor of course, I don’t need a bow.

My new Wood Lathe

My new Wood Lathe


When I got home I set it up on my workbench but without the extended bed fitted as that is only needed for long items like stair rods. After a search I located a batten of wood and sawed off a ten inch length then assembled it between the lathe centres. The tailstock centre is a live one, that’s to say it revolves with the workpiece so doesn’t get hot from rubbing the centre point. Supplied with the lathe are three cutting tools that looks to all the world like chisels. I got the gouger and set to and had an interesting time cutting away and practising how to best shape the wood.
I was quite pleased with the first attempt but couldn’t do any more as we had an invite to a barbecue at my son’s house as four family member’s have had a birthday in the past two weeks. (this is always a trying time of year for me), so I then had to pack it away.

The sun shone and we all had a good afternoon with a beer and burger and laughing with the children. Lauren demonstrated her ‘Alice in Wonderland’ abilities by squeezing into a small house.

Alice in Wonderland

Alice in Wonderland


As we sat about we heard two aircraft overhead that sounded odd. When we looked up we saw that it was a Spitfire and a Hurricane flying together. Sadly, there was no sign of the Lancaster Bomber the usually make up the display. On going out into the street for a better view we saw a few neighbours also out looking. A rare free treat for us all.
Spitfire and Hurricane

Spitfire and Hurricane

All in all it’s been a day to remember with fond memories.

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Eden Camp

The first Cruise Missile. German WW2 V1 .

The first Cruise Missile.
German WW2 V1 .

We went to a WW2 museum today. It’s not for away being at Malton in Yorkshire. Considering all but me were female it all went well. The sun shone but that brought out the wasps in droves to annoy everyone who was eating. When the sun went behind the clouds it was cool and the cardigans were put on. As all children are on their summer holidays it seemed that half of them had decided to descend on the place. Queues were the norm so everything took a long time as we shuffled through the 28 huts of displays. On top of that the younger granddaughters were a bit afraid of the atmosphere in some huts so wouldn’t go through; darkness, loud noises or smoke put them off it.
As I looked at the V1 Cruise Missile and the photographs of the V2 rockets that went into space before re-entry I am amazed we won the war. The Germans were so far in front of the rest of the world that they should have won. It seems it’s down to Hitler’s madness that they didn’t. He threw an army away at Leningrad and took other decisions against the advice of his generals and wasted it all. My dad, a WW2 veteran, said that until D-Day the German Soldier was the best the world had ever seen. No one had beaten him and to pretend otherwise was delusional.
Anyway. as is usually the case the kids got fed up with it after a couple of hours and wanted to go somewhere else. We took them home and put the TV on.
At least I feel that I have done my duty as a granddad 🙂

WW2 Russian Tank

WW2 Russian Tank

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