In the 1990s, a Russian mafia and Italian mafia organization participated in a literal money-laundering scheme, washing and bleaching the ink out of US$1 bills and reprinting them as $100s, for use in the post-Soviet bloc countries, where the bills might avoid detection as counterfeits. en.wikipedia.org/wiki/Rus…
Today I learned of Trish Vickers, a blind author who wrote 26 pages of her first novel without realising her pen had run out of ink. The local police force used their forensic lab to find the missing words, and the book was published on the day of her death. bbc.co.uk/news/uk-england…
Today I learned of gyotaku, the Japanese art of β€œfish-printing” where actual fish are prepped and painted with ink, then pressed on to paper. It originated as a way for fishermen to record their catches and is still practised today. en.wikipedia.org/wiki/Gyo…
When drummer Vinny Appice joined Black Sabbath, he had to learn their songs on stage, using hastily written notes when playing unfamiliar songs. During one of the shows, a rainstorm made the ink run on Appice's notes en.wikipedia.org/wiki/Vin…
Color-Changing Inks Can Be Printed onto Clothing to Warn the Wearer About Potential Health Issues goodnewsnetwork.org/color…
Almost 4,000 years ago, ancient Egyptian teachers used red ink to correct spelling mistakes, just like today. metmuseum.org/art/collect…
Ancient Roman spies used urine as invisible ink to write secrets between the lines of their official documents, hence the saying: "read between the lines." The messages appeared only when heated. clinidirectpharmacy.co.uk…
The reason we write from left to right is to not smudge ink. The Greeks (from whom English is derived) mostly had right handed stone workers and when they began to use papyrus, left to right allowed them to see what they were writing as well as prevent ruining the paper by smudging the ink childrensmuseum.org/blog/…
The word sepia comes from the Mediterranean Cuttlefish, a type of squid whose dark brown ink was used by classical civilizations. The name of this squid thereafter comes from the Greek ''sepein'' meaning: to rot. Most likely from the way the fish dirties the waters with its ink. mashedradish.com/2017/10/…
During World War I, Captain Sir Mansfield George Smith-Cumming's Secret Intelligence Service agents adopted the motto 'Every man his own stylo', after discovering that they could use semen as invisible ink. en.wikipedia.org/wiki/Man…
While Benjamin Franklin was in Paris during the American Revolution, his secretary was a British spy. The spy used the cover of weekly letters about β€œgallantry” (exploits with women). He would write in-between the lines in a special ink and leave the letter in a dead drop every Tuesday night. en.wikipedia.org/wiki/Edw…
In 2008, fossilized ink sacs we recovered from preserved remains of Belemnotheutis cephalopods. Mixed with ammonia solution, the team was able to return the ink to its liquid form and used the ~150 million year old ink to draw a replica of of the original illustration of Belemnotheutis. en.wikipedia.org/wiki/Bel…
Ink, expelled as a defence mechanism by octopus, cuttlefish and squid, was used in writing for centuries In present times, this ink is used as a sauce for pastas and has also been proven to be effective in treatment for cancer. wikipedia.org/wiki/Cephal…
Many financial institutions require documents to be filled out in blue ink. You can actually have forms rejected just from using the wrong color. They do this to help differentiate original copies from photocopies. Blue ink is the simplest solution. investopedia.com/articles…
Some densely populated countries use Election Ink to prevent double voting. The ink uses silver nitrate which stains the skin and is only removed by shedding of external skin cells, therefore providing a sure way of knowing who has or hasn't voted. en.wikipedia.org/wiki/Ele…
Printer companies implement programmed obsolescence by embedding chips into ink cartridges that force them to stop printing after a set expiration date, even if there is ink remaining. en.wikipedia.org/wiki/Ink…
Japan does not accept signatures on official documents (banks, real estate and business) but require a β€˜hanko’ which is an official carved wooden or stone seal pressed in ink nippon.com/en/features/jg…
Della Porta (1563) invented a method of writing secret messages inside eggs. Ink transferred from the shell to the boiled egg inside. The message could only be revealed when cracked and peeled en.wikipedia.org/wiki/Gia…
Today I learned about the "Stroop Effect" . In its basic form, the task is to name the color in which a word is printed, ignoring the word itself. When the word is a color word printed in a mismatched ink color, this is very difficult to do and results in slow, error-prone responding. imbs.uci.edu/~kjameson/EC…
The economic struggle in Venezuela caused Kellogg’s to sell breakfast cereal boxes without the colorful ink. The company claimed it was just more eco friendly packaging. nzherald.co.nz/business/n…
Most receipts are printed without ink. en.wikipedia.org/wiki/The…
In 2014 a 14 year old Suvir Mirchandani suggested that US government could save $400m on printer ink by switching their font from Times Roman to Garamond. Unfortunately the calculations didn't quite add up. independent.co.uk/news/sc…
Science behind tattoos revolves around immune cells known as macrophages. These cells consume foreign debris and come rushing when one is wounded. Once the needle is pierced, they suck up the ink and keep it intact. The process keeps repeating once the old cells die and new rush to rescue popsci.com/how-tattoos-wo…
Marvel Comics writer Mark Gruenwald, upon his death in 1996, by request had his ashes mixed in with the printing ink for the collected edition of his series Squadron Supreme. Most first printings of the book likely contain his remains. en.wikipedia.org/wiki/Mar…
Mansfield Cumming, first director of Secret Intelligence Service (MI6) started using semen as invisible ink during World War 1, but they stopped it because of the smell and questions regarding the masturbatory habits of the agents involved. en.wikipedia.org/wiki/Man…
Paul Fisher, creator of the space pen, redesigned the ink instead of the cartirdge to prevent leaking. He developed a thixotropic ink that is a gel at rest, but turns into a liquid under pressure. With this new ink, the pen would never leak and would only write when pressure was applied. smithsonianmag.com/arts-c…
Some 'erasable' pens don't erase their ink. Instead it changes colour to become invisible. shopeveryday.ca/blog/eras…
Not all tattoos are vegan. This is due to some inks being comprised of animals fats, gelatine, bone char or insect parts. vegansociety.com/resource…
Saddam Hussein commissioned a calligrapher to write a copy of the Quran using his blood as ink. The 605 page book contains roughly 27 liters of his blood and is kept in a mosque in Iraq behind 3 vault doors. atlasobscura.com/places/s…
A Ditto machine is the North American trademark of a 1920s spirit duplicator, which is the predecessor of modern photocopiers(The "spirit" refers to the alcohol solvents in the ink) en.wikipedia.org/wiki/Spi…
Those tiny odd ink stamps on large currency bills are referred to as "Chopmarks". They are used so that a currency dealer does not have to study a note closely, if it already has his chop showing that he did that before. They will then accept back the note if found to be a forgery. coinbooks.org/esylum_v17n…
, Frank Zappa had a composition so complex it was called The Black Page because the sheet music was covered in so much ink. en.wikipedia.org/wiki/The…
Industrial-strength ink jet printes "Throws Ink" up to an inch as products move by, at speeds up to 2,000 feet per minute. youtu.be/-DckWNwE7R4?t=22…
The Fisher Pen Co. patented a sealed, pressurised ink cartridge for the anti-gravity pen in 1966. The "thixotropic” ink is close to a solid before being stirred & as it's stirred by the ball going through the point, it becomes very thin which allows it to flow in the gravity-free vacuum of space wired.co.uk/article/space…
Just inside the Jaffa Gate in Jerusalem’s Old City is a tiny shop that is the world’s only surviving tattoo shop for medieval pilgrims. This is Razzouk Ink, a shop run by a family who have been involved in the cultural practice of inking marks of faith on pilgrims as far back as 1300. atlasobscura.com/articles…
Long before DDOS or spam-mail attacks there was the infamous "Black Fax". Senders would attack the receiver with completely black pages to occupy their fax machine and making them use up all their expensive ink/toner and paper. faxauthority.com/glossary…
Anonymous sent thousands of all-black faxes to the Church of Scientology to deplete all of their ink cartridges newyorker.com/magazine/20…
Hulk was originally intended to be grey. Ink problems released in the first edition made Stan Lee decide it should be green. hulk.fandom.com/wiki/Grey…
Today I learned of Strewwelpeter a German book to scare kids into being good. Ex. a story about a boy who never cleans himself & is unpopular, one refuses to eat his soup & withers away & dies, a girl plays with matches & burns to death, & 2 boys tease someone w/ dark skin & are then dipped in ink as a lesson en.wikipedia.org/wiki/Str…
While cephalopod ink is primarily composed of melanin it also has trace amounts of dopamine. ncbi.nlm.nih.gov/pmc/arti…
In 2012, a blind woman wrote a book on a notepad with rubberbands wrapped around to indicate lines. Her son read chapters back to her for edits then sent them to typesetters. Once, she gave her son 26 blank pages because the pen lost ink and police helped reform it in a five-month effort. bridportnews.co.uk/news/l…
The clear portion of fluid on top of the ink in some pens is called an ink follower containing a mixture of silicone oils. patents.justia.com/patent…
Today I learned of quipos - the Andean writing system which didn't use ink and paper/tablets/skins. Information was encoded in an intricate system of strings of colored yarn tied in a variety of knots. This system survived until just after the Conquistadors. ancient.eu/Quipu/
In Korea it is rude and taboo to write a name in red ink as traditionally only names of the deceased were written in red for the family registry. gwangjunewsgic.com/arts-c…
British spies used semen as invisible ink during WWI and this method was invented by Sir Mansfield Cumming gizmodo.com/british-spies…
The Romans used to send each other little postcards made of a thin layer of flexible wood written on in ink and then folded in two. About 400 tablets (in fragments) were found near where Hadrian's wall would be built. They tell us a great deal about the nature of life on the Roman frontier. bbc.co.uk/history/ancient…
Vellum (Parchment) is an animal product produced through a process of cleaning, stretching, and scraping. The process is finalized by using pumice and chalk to create a finish that will accept ink. en.wikipedia.org/wiki/Vel…
The Secret Service runs an extensive β€œink library” that houses samples of nearly every kind of ink that has been manufactured in the past century. popularmechanics.com/tech…
There was a black samurai who served under the daimyō Oda Nobunaga who praised him for his strength and was given his own residence and a short, ceremonial katana by Nobunaga. When they first met, Nobunaga suspected his skin was covered in ink and had his skin scrubbed. en.wikipedia.org/wiki/Yas…
A 13 yr old who made a Braille printer out of Legos after discovering that millions of blind people in developing countries buy Braille devices that cost $2K and weigh 20 lbs. His prints Braille from computers to paper using raised dots instead of ink, weighs a few lbs, and costs only $350. theguardian.com/technolog…
Sepia is made of squid ink en.wikipedia.org/wiki/Sep…
There was a real cipher that used the Declaration of Independence as its enciphering text in the late 1800s (Beale ciphers) that would supposedly lead to buried treasure. Unfortunately it was not written on the back of the Declaration in invisible ink but allegedly on papers in a locked box. en.wikipedia.org/wiki/Bea…
Tree sap has many uses in the modern world including an ingredient in printing inks, photocopying and laser printing paper, soldering fluxes, pharmaceuticals, lens manufacturing, violin bow treatment, soft drink emulsifiers, and many more. en.wikipedia.org/wiki/Ros…
In 1977, members of the rock band KISS mixed their own blood with the red ink used to print the first KISS comic book. ultimateclassicrock.com/r…
Leonardo da Vinci, being left-handed, wrote most of his personal notes from right to left (backwards) and mirrored (aka mirror writing) most likely to prevent smudges of ink youtube.com/watch?v=zwGdn…
The difference between ballpoint and rollerball pens isn't the pen, but the ink inside. Ballpoint pens use a paste-like oil-based ink while Rollerballs use low-viscosity water-based inks and gels to achieve an effect similar to a fountain pen. en.wikipedia.org/wiki/Rol…
In 1258 the Mongols destroyed Baghdad. Survivors said that "the waters of the Tigris ran black with ink from the enormous quantities of books flung into the river and red from the blood of the scientists and philosophers killed." The siege marked the end of the Islamic Golden Age. newyorker.com/magazine/20…
The first mention of a pen with ink reservoir came in 973 in the region of northwest Africa by Ma'ād al-Mu'izz. He wanted a pen that didn’t get his hand messy. The next mention came in the 17th century by a German inventor, Daniel Schwenter. historyofpencils.com/writ…
Gene Simmons of KISS bled into a vat of ink, so Marvel could claim it was printed with his blood snopes.com/fact-check/blo…
People used to iron their newspapers to set the ink. That way they wouldn't turn their fingers black. nytimes.com/1996/04/21/tr…
The Secret Service has its own ink library which contains over 11,000 samples of ink, from all over the world, dating back to the 1920s. popularmechanics.com/tech…
Some printers often blend cyan ink into print-ups that are supposedly black and white, claimed to create a "purer black" output. therecycler.com/posts/the…
Not only is squid ink edible, it has been studied for potential health benefits such as combating the growth of cancer. healthguidance.org/entry/…
Some HP printer firmware default disables you from using non HP ink, such as used or non OEM unless you update a driver or turn off the feature in the printer. tonergiant.co.uk/blog/201…
The reason that US money is green is because according to the U.S. Bureau of Printing and Engraving, the ink was plentiful and durable and the color green was associated with stability history.com/news/ask-hist…
Leonardo da Vinci wrote horizontally flipped, in order to avoid the ink from smudging youtu.be/zwGdnCNi8Ss?t=57
The hard blue end of an eraser wasn't designed for erasing ink. It is meant for erasing pencil from heavier paper that would otherwise wear down the softer, pink side. vorply.com/facts/list/fin…
The Coca Cola Freestyle vending machine was designed with help from Dean Kamen, inventor of the Segway. They used his medication microdosing technology to create a printer-like cartridge system that dispenses highly concentrated syrup instead of ink, which can last 75-120 days laweekly.com/restaurants/…
All major manufacturers of color laser printers entered a secret agreement with governments to ensure that all printouts are forensically traceable by printing encoded serial numbers and timestamps in yellow ink dots on every printout. eff.org/pages/list-printe…
A man tried to rob two banks after covering his face with lemon juice in the mistaken belief that, because lemon juice is usable as invisible ink, it would prevent his face from being recorded on surveillance cameras. nymag.com/scienceofus/201…
British Intelligence Services (MI6) used Semen as Invisible Ink During WWI gizmodo.com/british-spies…
Today I learned of bank robber McArthur Wheeler. Because lemon juice can be used as invisible ink, Wheeler (wrongly) assumed that putting it on his face would make him invisible to the bank's security cameras. He was caught later that day. en.m.wikipedia.org/wiki/M…
British spies stopped using semen as invisible ink because it began to smell if it wasn’t fresh. telegraph.co.uk/news/ukne…
British spies used semen as invisible ink during WWI. The method was invented by Captain Sir Mansfield Cumming. gizmodo.com/british-spies…
Today I learned of scleral tattooing; you can inject ink between the two layers of the sclera to color the eye popsci.com/this-is-how-ey…
A man once robbed two banks with lemon juice on his face, thinking that lemon juice's "invisible ink" property would erase his face from security camera footage. mindhacks.com/2010/02/11/…
School teachers have been using red ink to correct assignments for at least 3900 years metmuseum.org/art/collect…
All new copiers in the United States malfunction and copy black ink when trying to copy any USA currency to decrease forgery attempts! huffpost.com/us/entry/us_…
In 1806, a hen in Leeds, England, began laying eggs on which the phrase "Christ is coming" was written. Eventually it was discovered to be a hoax. The owner, Mary Bateman, had written on the eggs in a corrosive ink so as to etch the eggs, and reinserted the eggs back into the hen's oviduct. en.wikipedia.org/wiki/Mar…
Paleontologist JΓΈrn Hurum teamed up with artist Esther van Hulsen to paint an octopus with 95-million-year-old ink thisiscolossal.com/2016/0…
There is a German children's book from 1845 about three boys teasing a dark-skinned boy. To teach them a lesson, Saint Nicolas dips the three boys in black ink, to make them even darker-skinned than the boy they'd teased. en.m.wikipedia.org/wiki/S…
Francis Parkman, the great 19th Century American historian, had such poor vision that he rigged his writing tablets with a wire lattice, to guide his pen across the page. He also found that writing with red ink on orange paper was the least stressful combination for his eyes. bostonathenaeum.org/libra…
In 1990, the Viskase Corp. debuted a breakthrough in hot-dog technology. It had developed an edible ink that allowed messages to be printed onto hot dogs during the manufacturing process. weirduniverse.net/weirdne…
In The Fairly OddParents, Timmy's hat is pink because the show's creator ran out of blue ink. en.wikipedia.org/wiki/The…
Laser tattoo removal is the process of using different wave lengths of light to break down the metallic ink particles to sizes small enough that they can be passed to the liver by your body's white blood cells. youtu.be/D0B7F5UbTOQ
The CIA declassified German recipes for invisible ink cia.gov/library/readingro…
Smoking cessation advocates in Thailand made ink from the black deposits in smoker's lungs. creativity-online.com/wor…
Today I learned of a man who robbed two banks after covering his face with lemon juice in the mistaken belief that, because lemon juice is usable as invisible ink, it would prevent his face from being recorded on surveillance cameras. realitysandwich.com/22078…
Inkjet printers made by companies such as HP and Epson lie to you by telling you your ink cartridges are empty before they really are. arstechnica.com/gadgets/2…
The African American vocal group The Ink Spots was one of the first of what would now be called boy bands. en.wikipedia.org/wiki/Boy…
Manson's "The Pale Emperor" CD is printed with thermographic ink so it's all black before it's played and is totally white by the time it finishes playing. kingsroadmerch.com/marily…
The Green Ink used in American Currency was invented by a Canadian in 1857. Using chromium trioxide, it is difficult to reproduce by counterfeiters and cannot be destroyed by acid. mysteriesofcanada.com/que…
Refillable printer ink is commonplace in most countries EXCEPT the US, where printer manufacturers control the type of competition that they allow on retail shelves en.wikipedia.org/wiki/Ink…
Learned the first ATM used a paper slip printed with mildly radioactive ink to authenticate users newsweek.com/atms-banking…
Typographers use Ink Traps, to avoid excess ink usage and get clearer printing at small sizes. en.wikipedia.org/wiki/Ink…
The Hulk was originally supposed to be grey to portray lack of ethnicity, but problems with the printing ink caused a green one that they stuck with. en.wikipedia.org/wiki/Hul…
How the PokΓ©mon Ditto was named and created - It was based off the original copy machines called Dittos which copied print in a purple ink. retroland.com/dittos/
Today I learned of the Cotton Club, a Harlem night club that was Whites-Only despite being staffed by black people, who also served as entertainers. It was the inspiration for the Paper 'n' Ink Club in "Who Framed Roger Rabbit" en.wikipedia.org/wiki/Cot…
[] As lemon juice is used to make invisible ink, a man tried to rob a bank thinking he was invisible by putting lemon juice on his face. mindblowing-facts.org/201…

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