[{"content":" Welcome to our personal website Budgie Kitten!\nThis is where we write about our projects and other topics that interest us.\n","date":"2 May 2026","externalUrl":null,"permalink":"/","section":"","summary":"","title":"","type":"page"},{"content":" Intro # I really enjoy sewing some cute small toys from felt, as they come out really cute!\nRecently on the internet I found some sewed cats which were very cute. So I decided, why not make such kitty myself? After several minutes on Pinterest, I got an idea of a very simple way of making it. I tried to catch every step I made to share on this blog! At the end of the article I will point out a slight difference between light and black cat, but for now you will be following the white cat.\nPreparation # For this cat you need:\nFelt Thread Needle Some toy stuffing (you can use cotton or anything else tbh!). Begin # Step 1 # First of all, draw your own, print or redraw my cat shape on paper, and carefully cut it out. You should get body and head.\nStep 2 # Then, put papers on felt and redraw it. You must get two identical felt bodies and one head. Cut it out\nStep 3 # Now it\u0026rsquo;s time to embroider cat\u0026rsquo;s details! As you saw on the first photo, my cats look different, so the design is fully up to you! I used simple small stitches being close to each other. Take an important note that I embroidered on one body part and head, leaving one body untouched. It connects face to the rest of the cat.\nStep 4 # Once design was made, use blanket stitches to sew up parts on the edges. Do not stitch up to the end, as we will be filling the toy.\nStep 5 (Final step) # Near the end, take some stuffing and put inside the cat. Finish blanket stitching and ta da! Your cat is done!\nSome notes # A note about black cat. In light colored one I used an additional face to give some volume, while in black I did not. There I just embroidered right on one of the body parts and then sewed them up together, like I would do if had head.\n","date":"2 May 2026","externalUrl":null,"permalink":"/blog/an-easy-step-by-step-sewing-a-small-felt-cat/","section":"Blog","summary":"","title":"An easy step-by-step sewing a small felt cat!","type":"blog"},{"content":"","date":"2 May 2026","externalUrl":null,"permalink":"/authors/","section":"Authors","summary":"","title":"Authors","type":"authors"},{"content":" Hello! Welcome to blog page! ","date":"2 May 2026","externalUrl":null,"permalink":"/blog/","section":"Blog","summary":"","title":"Blog","type":"blog"},{"content":"","date":"2 May 2026","externalUrl":null,"permalink":"/tags/cat/","section":"Tags","summary":"","title":"Cat","type":"tags"},{"content":"","date":"2 May 2026","externalUrl":null,"permalink":"/categories/","section":"Categories","summary":"","title":"Categories","type":"categories"},{"content":"","date":"2 May 2026","externalUrl":null,"permalink":"/tags/craft/","section":"Tags","summary":"","title":"Craft","type":"tags"},{"content":" Hello! Welcome to everyday life page! This page focuses on taking care of the house and everything inside it. You can find Pet and Plant tags below, where we will share photos taken by us and short articles about eukaryotes and how to take good care of them (It isn\u0026rsquo;t our specialization, so go to a pet and plant doctor if you need more information).\nPet Plant Photo ","date":"2 May 2026","externalUrl":null,"permalink":"/categories/life/","section":"Categories","summary":"","title":"Everyday life","type":"categories"},{"content":"","date":"2 May 2026","externalUrl":null,"permalink":"/tags/hobby/","section":"Tags","summary":"","title":"Hobby","type":"tags"},{"content":" Mr White - the second author, who was giving moral support throughout the entire process of making website. Behaves like our grandmother: knits, takes care of cats and grows plants. Frequently can be pessimistic, which affects mind and communication with Mr Black. Introverted, but at the same time can suffer from lack of communication. Wishes to live in village and to be surrounded by nature and alcoholics. ","date":"2 May 2026","externalUrl":null,"permalink":"/authors/mrwhite/","section":"Authors","summary":"","title":"Mr. White","type":"authors"},{"content":"","date":"2 May 2026","externalUrl":null,"permalink":"/tags/sewing/","section":"Tags","summary":"","title":"Sewing","type":"tags"},{"content":"","date":"2 May 2026","externalUrl":null,"permalink":"/tags/","section":"Tags","summary":"","title":"Tags","type":"tags"},{"content":" Tip This article is available in Vietnamese and Russian\nJan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ","date":"25 December 2025","externalUrl":null,"permalink":"/blog/annual-pet-photos-2025/","section":"Blog","summary":"","title":"Annual pet photos 2025","type":"blog"},{"content":" Mr Black - the main author, who came up with the idea of making website and brought it to reality all alone. Mr Black enjoys privacy and chewing granite of knowledge all the time. Behaves neither mature, nor childish. Has good manners, but isn\u0026rsquo;t embarassed to ask impolite questions if the life asks to. Sometimes is frugal, which can help in life, but also complicates it. Wishes to settle down one day in calm place with partner. ","date":"25 December 2025","externalUrl":null,"permalink":"/authors/mrblack/","section":"Authors","summary":"","title":"Mr. Black","type":"authors"},{"content":"","date":"25 December 2025","externalUrl":null,"permalink":"/tags/pet/","section":"Tags","summary":"","title":"Pet","type":"tags"},{"content":"","date":"25 December 2025","externalUrl":null,"permalink":"/tags/photo/","section":"Tags","summary":"","title":"Photo","type":"tags"},{"content":"","date":"1 May 2025","externalUrl":null,"permalink":"/tags/cryptography/","section":"Tags","summary":"","title":"Cryptography","type":"tags"},{"content":"","date":"1 May 2025","externalUrl":null,"permalink":"/tags/image/","section":"Tags","summary":"","title":"Image","type":"tags"},{"content":" Hello! Welcome to project page! This is where we write about our coding and computer projects.\n","date":"1 May 2025","externalUrl":null,"permalink":"/project/","section":"Project","summary":"","title":"Project","type":"project"},{"content":" Source code: https://github.com/BudgieKitten/steganography\nIntroduction # Steganography is the study of concealing (hiding) messages or data in an image, without it being detected. Not to confuse with watermarking which usually carries supplemental information and is often advertised to deter illegal activity.\nSteganography comes in a variety of forms. It was an effective method to communicate during war, without being suspected or discovered. Example: https://www.atlasobscura.com/articles/knitting-spies-wwi-wwii. Or, hiding information (or secrets) in a song. Example: https://cacm.acm.org/news/hiding-data-in-music/\nIt is often difficult to distinguish whether an image contains the secret messages without the original image. This project will implement the simplest and most common steganography algorithm called Least Significant Bit (LSB).\nSome primers # Image formats # .bmp: image is not compressed .jpg and .jpeg: compressed image but may lose some information .png: lossless and compressed image Image size in order of decreasing: .bmp \u0026gt; .png \u0026gt; .jpg\nImage organization # Generally stored in raster formats, where the data (RGBA) is stored row by row (like a matrix).\nExplanation # The project uses LSB embedding algorithm which is the most common and simplest algorithm. However, it is vulnerable to histogram attack. Even though it is very insecure, it is usually undetectable.\n1 word (encoded in UTF-8) is 8-bit and the RGBA color range has a total of 4 colors (8-bit for each color Red, Green, Blue, Alpha). Therefore, each color can be used to store at least \\(8\\verb|-bit word| ÷ 4 \\verb| color| = 2 \\verb| bits|\\) of the word. In total, the last 2 bits of each color will be used to store the word.\nIn order to avoid integer overflow from adding or subtracting bits into the color value (\\(x\u003e255\\) or \\(x\u003c0\\)), let \\(x\\) to be the number of bits that will be embedded, \\(|x+4|\u003c=131\\) will be chosen for colors that stays in the range \\(0−127\\) after getting embedded and \\(|x−4|\u003e123\\) for colors in the range \\(128−255\\).\nLimitations: \\(rows \\times columns\\) pixels (of the image) must be larger than the total characters. Otherwise, it can overwrite the previously embedded message (by the pigeonhole theorem).\nThe math # During embedding: # New color bit of each color value == color value (8-bit) + embedded bit (2-bit)\n\\(\\Longrightarrow\\) Embedded bit == Bit of a word - (color value mod 4)\nDuring extracting: # (Each color value (of embedded image) \\(\\bmod\\) 4) = Original bit of the secret text\nNotes: # During embedding, if the messages reaches End of File (-1), the null bit (0,0,0,0) will be embedded to mark EOF. Since the project is currently only supporting UTF-8 (for now), any foreign characters (larger than 8-bit or \\(127_{10}\\) or essentially larger than number 127 in decimal), the character will be substituted as \u0026lsquo;?\u0026rsquo;. References # https://www.amazon.ca/Steganography-Digital-Media-Principles-Applications/dp/0521190193\n","date":"1 May 2025","externalUrl":null,"permalink":"/project/steganography/","section":"Project","summary":"","title":"Steganography","type":"project"},{"content":" Hello! Welcome to arts page! Mythology ","date":"29 December 2024","externalUrl":null,"permalink":"/categories/arts/","section":"Categories","summary":"","title":"Arts","type":"categories"},{"content":"","date":"29 December 2024","externalUrl":null,"permalink":"/tags/greek/","section":"Tags","summary":"","title":"Greek","type":"tags"},{"content":"","date":"29 December 2024","externalUrl":null,"permalink":"/tags/mermaid/","section":"Tags","summary":"","title":"Mermaid","type":"tags"},{"content":"Featuring the page is a painting by John William Waterhouse, A Mermaid (1900). Little mermaid # When everyone talks about Mermaid, they probably think about the cute Little Mermaid from Disney and Hans Christian Andersen that people watched when they were young (I assumed you were born in the 2000s).\nLittle Mermaid by Disney, 1989 In the movie, it was the story of a little mermaid who fell in love with a prince that she rescued on the sea. She decided to trade her voice in exchange for a pair of legs to walk on land and tried to meet him. In the end they both succeeded and married each other and lived a happy life (Classic Disney movie lol).\nOn the other hand, in the original story written by Andersen (and other variations of the story), the little mermaid witnessed the prince marrying another princess in an arranged marriage, and died by dissolving into sea foam.\nGreek mythology # Portrayed as a sexual, predatory and half-woman, half-fish creature hoping to eat sailors, like in the classic scene of Pirates of the Caribbean: On Stranger Tides, where the pirates are surrounded by mermaids wanting to eat them, and the mermaids are seen as treasures to the pirates.\nKnown as the sirens in the Greek mythology, the mermaid will use her beauty, sing these beautiful songs and sit on rocks calling for anyone in the sea who dares to approach her, and she will in turn devour him.\nBy John William Waterhouse, Hylas and the Nymphs (1896) By Herbert James Draper, Ulysses and the Sirens (1909) My thoughts # The idea of beauty on the outside but with dangerous and cunning motive inside is just mesmerizing and fascinating at the same time isn\u0026rsquo;t it?\nPlease enjoy the remaining drawings and sculptures of Mermaid that I found on the internet.\nSculpture # Archaic perfume vase in the shape of a siren (540BC) Sculpture of the Mermaid of St Dogmael in Pembrokeshire Village, Wales By Steve Hayward, Mermaid of the North in Balintore, Scotland (2007) By Edvard Eriksen, Statue of The Little Mermaid in Copenhagen (1913) Drawing # By John William Waterhouse, The siren (1900) By Elisabeth Jerichau Baumann, Mermaid (1873) By Frederic Leighton, The Fisherman and the Syren (1857) By Ilya Yefimovich Repin, Sadko (1876) Mermaid from La Bibliothèque nationale de France By Arthur Rackham, A Crowned Merman By Charles Edouard Boutibonne, Mermaids Frolicking in the Sea (1883) By Frans Francken the Elder, Allegory: the Ship of State (late 1500s) By Arthur Rackham, Rhinegold \u0026amp; The Valkyrie (1910) By John William Waterhouse, Ulysses and the sirens (1891) By Julius Hübner, Melusine (1844) Sirens in Oxford, Bodleian Library MS Bodley 764 By James Clark Hook, Catching a Mermaid (1883) By Evelyn De Morgan, The Sea Maidens (1886) References # https://en.wikipedia.org/wiki/Mermaid#Eastern_Europe\nhttps://womennart.com/2020/06/17/sirens-and-mermaids/\nhttps://sarahpeverley.com/2014/07/25/mermaids-the-lure-of-sirens-song-2/\nhttps://thedruidscauldron.net/2022/11/03/mermaids-the-sailors-doom/\nhttps://www.rmg.co.uk/stories/topics/what-mermaid\nhttps://en.wikipedia.org/wiki/The_Little_Mermaid_(1989_film)\nhttps://americanliterature.com/author/hans-christian-andersen/short-story/the-little-mermaid/\n","date":"29 December 2024","externalUrl":null,"permalink":"/blog/mermaids-in-mythological-tales/","section":"Blog","summary":"","title":"Mermaids in Mythological tales","type":"blog"},{"content":"","date":"29 December 2024","externalUrl":null,"permalink":"/tags/mythology/","section":"Tags","summary":"","title":"Mythology","type":"tags"},{"content":"","date":"29 December 2024","externalUrl":null,"permalink":"/tags/ocean/","section":"Tags","summary":"","title":"Ocean","type":"tags"},{"content":" Tip This article is available in Vietnamese and Russian\nJan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec ","date":"25 December 2024","externalUrl":null,"permalink":"/blog/annual-pet-photos-2024/","section":"Blog","summary":"","title":"Annual pet photos 2024","type":"blog"},{"content":"","date":"18 December 2024","externalUrl":null,"permalink":"/tags/english/","section":"Tags","summary":"","title":"English","type":"tags"},{"content":" Hello! Welcome to misc page! This is where we will write about our personal thoughts and ordinary life. No Politics in this page\nReading ","date":"18 December 2024","externalUrl":null,"permalink":"/categories/misc/","section":"Categories","summary":"","title":"Misc","type":"categories"},{"content":"Though we (or Mr. Black) don\u0026rsquo;t like reading poems that much (Shakespeares\u0026rsquo; sonnets :\u0026rsquo;), but Hades Welcomes His Bride is a fascinating and very readable poem, and we are hooked by this poem.\nThis poem is written by A. E. Stallings in 1993. It is about the story of Hades, the god of the underworld, kidnapping Persephone and enticing her to his home, however in a timid and gentle voice. Hope you will enjoy it!\nHades Welcomes His Bride # Come now, child, adjust your eyes, for sight\nIs here a lesser sense. Here you must learn\nDirections through your fingertips and feet\nAnd map them in your mind. I think some shapes\nWill gradually appear. The pale things twisting\nOverhead are mostly roots, although some worms\nArrive here clinging to their dead. Turn here.\nAh. And in this hall will sit our thrones,\nAnd here you shall be queen, my dear, the queen\nOf all men ever to be born. No smile?\nWell, some solemnity befits a queen.\nThese thrones I have commissioned to be made\nAre unlike any you imagined; they glow\nOf deep-black diamonds and lead, subtler\nAnd in better taste than gold, as will suit\nYour timid beauty and pale throat. Come now,\nDown these winding stairs, the air more still\nAnd dry and easier to breathe. Here is a room\nFor your diversions. Here I\u0026rsquo;ve set a loom\nAnd silk unraveled from the finest shrouds\nAnd dyed the richest, rarest shades of black.\nSuch pictures you shall weave! Such tapestries!\nFor you I chose those three thin shadows there,\nAnd they shall be your friends and loyal maids,\nAnd do not fear from them such gossiping\nAs servants usually are wont. They have\nNot mouth nor eyes and cannot thus speak ill\nOf you. Come, come. This is the greatest room;\nI had it specially made after great thought\nSo you would feel at home. I had the ceiling\nPainted to recall some evening sky\u0026ndash;\nBut without the garish stars and lurid moon.\nWhat? That stark shape crouching in the corner?\nSweet, that is to be our bed. Our bed.\nAh! Your hand is trembling! I fear\nThere is, as yet, too much pulse in it.\nA. E. Stallings, 1993\nSources # https://keirathemighty.blogspot.com/2009/08/hades-welcomes-his-bride.html\nhttp://armytage.net/updata/803-808.pdf\n","date":"18 December 2024","externalUrl":null,"permalink":"/blog/our-favorite-poem-from-english-class-2024/","section":"Blog","summary":"","title":"Our favorite poem from English class 2024","type":"blog"},{"content":"","date":"18 December 2024","externalUrl":null,"permalink":"/tags/poem/","section":"Tags","summary":"","title":"Poem","type":"tags"},{"content":"","date":"18 December 2024","externalUrl":null,"permalink":"/tags/reading/","section":"Tags","summary":"","title":"Reading","type":"tags"},{"content":" If you ever have any questions, feel free to contact us by email: budgiekitten@outlook.com Email etiquette is to be expected (Just don\u0026rsquo;t be rude to be honest, we won\u0026rsquo;t care about etiquette). Please allow up to 2 weeks for them to be responded because we are still students and we also have a life. If we happen to post your contents on this website without your permission, you can contact us through our email first and prove your ownership, we do apologize for it and we will happily take it down. ","externalUrl":null,"permalink":"/contact/","section":" Contact and DMCA","summary":"","title":" Contact and DMCA","type":"contact"},{"content":" Hello readers! This is us!\nWe are Mr. Black and Mr. White. We are both computer science students hoping to make ends meet. We have a lot of interests in many different topics and in December 2024, we decided to start this website to share our thoughts and things we will learn together (mostly we just make it for fun)!\nCollectively, we can speak English, Russian and Vietnamese, though regarding technical terms and our abilities to explain things in Russian and Vietnamese, we are quite rusty (Blaming schools teaching us to memorize for grades and not understanding). Due to our limited time and energy (we are lazy butt students), and this is just a little fun project, we decide to focus more on contents and occasionally an article written in either Russian or Vietnamese.\nWe are not planning to monetize the contents on this website and are more passionate about sharing our knowledge. We are both privacy and security conscious, we understand it\u0026rsquo;s annoying to be spied on and fed with ads. Most of the pets\u0026rsquo; photos on this website are our cats or our friends\u0026rsquo; cats. We will only take images and files and documents and books from mostly dead people, or allowed contents with a non-commercial or free license. We will also reference the sources so you can find them easily.\nOccasionally we will also have Slonik as our mysterious guest editor. Most of the site admins and emailing will be done by Mr. Black (so if you are emailing us, chances are you are talking to Mr. Black). But please allow up to 2 weeks since we both have a life too.\nWe are like peas and carrots! For more photos they can be found in Pet page.\nPlease enjoy photos of the 2 of us and our family. Sorry it\u0026rsquo;s quite buggy :((\nPrevious Next ","externalUrl":null,"permalink":"/about/","section":"About us","summary":"","title":"About us","type":"about"},{"content":" This page will contain all the general FAQ that might interest you. For more information regarding technical things please go to Technical FAQ\nAre you siblings? Yes we are. We were born from the same mother. Our father is unknown (He\u0026rsquo;s not a deadbeat cat though). Do you track us? No we don\u0026rsquo;t. Do note that we don\u0026rsquo;t earn money from this website and this is just a place for us to learn and share new knowledge. It\u0026rsquo;s also a good way to help us reinforce our knowledge and we love writing together. We got our inspiration from here: https://terrytao.wordpress.com/career-advice/write-down-what-youve-done/ How old are you? We were born at the same time as Hercule Poirot. So quite old. When did Budgie Kitten appear on Google and DuckDuckGo? We are not really sure when did Google and DuckDuckGo index our site to be honest. But at the time of this writing (May 5, 2025), we did a random Google and DuckDuckGo search and found out that our website was listed on both search engine. Yay!\nP.S. We did not submit or request Google nor DuckDuckGo to index our site, so it all happened naturally.\nWhen did Budgie Kitten go live? We brought Budgie Kitten to life on December 24, 2024! Neither of us celebrate Christmas! Technical FAQ How do you build your website? We made this website using Hugo and theme Blowfish. (They are fast to build and we would like to focus on the contents of this website).\nWe host this website on a generic VPS and bought the domain from a generic domain registrar (Any reputable providers will do it).\nP.S. We don\u0026rsquo;t earn money from this website and Budgie Kitten is just a place for us to learn and share new knowledge, and we love writing together. And we are both privacy and security conscious, we understand it\u0026rsquo;s annoying to be spied and fed ads.\nWhat is your \\(\\LaTeX\\) setup? We both use Overleaf for writing articles together. And on our website we use \\(\\KaTeX\\) since it is shipped with Blowfish. However, we can recommend MathJax for typesetting mathematical notations.\nMr. Black uses TexStudio as his editor, and MikTex as his \\(\\LaTeX\\) distribution on Windows, and TexLive as his \\(\\LaTeX\\) distribution on Debian.\nFor Debian, you can just download the editor and the \\(\\TeX\\) distribution from the Debian package using the command line. Remember to change the build path to /path/to/texlive, which can be found using:\nwhich tex ","externalUrl":null,"permalink":"/faq/","section":"FAQ","summary":"","title":"FAQ","type":"faq"},{"content":" Hello! Welcome to science page! Since we are 2 science persons, we will write a lot of articles about math (combinatorics and optimization and probability, cryptography, linear algebra) and computer (linux, latex, coding). Mr. Black is a big fan of Debian.\nMath Technology ","externalUrl":null,"permalink":"/categories/science/","section":"Categories","summary":"","title":"Science","type":"categories"},{"content":"","externalUrl":null,"permalink":"/series/","section":"Series","summary":"","title":"Series","type":"series"},{"content":" Slonik - the only creation in our project, who didn\u0026rsquo;t help main author. Lives in the present and doesn\u0026rsquo;t remember old mistakes. Communicable and eccentric, loves spending days with different people and finding new places in his imaginary world. That\u0026rsquo;s why strangers say Slonik is such God\u0026rsquo;s dandelion! So from time to time will appear in our blog as a guest. ","externalUrl":null,"permalink":"/authors/slonik/","section":"Authors","summary":"","title":"Slonik","type":"authors"}]