US pennies were made of steel in 1943 due to a copper shortage during world war 2. wikipedia.org/wiki/1943_s…
In 1793, Thomas Jefferson requested a 1kg copper cylinder from France, to be used as a weight standard in adopting the metric system in the United States. The ship carrying the copper was blown off course into the Caribbean, where it was looted by pirates. npr.org/sections/thetwo-w…
Afghanistan shares a 46-mile border with China. Marco Polo used it in his Silk Road travels. It's rumored to have a fort Alexander the Great was not able to conquer, and it has one of the largest untouched copper mines in the world. insider.com/afghanistan-c…
Octopuses have 2/3 of their neurons in their tentacles; the mother dies almost immediately after the eggs are hatched, due to exhaustion; their blood is copper based which makes it blue; they can change the color of their skin, & also texture; they can watch and learn; evolved from snails. youtu.be/GJor1sk_JDI
The claim that Space Invaders caused a national 100-yen coin shortage in Japan in the late 70s is a myth. It was largely due to low production of the coin as metal composition changed - copper-nickel instead of silver - made people hoard the silver coins. academia.edu/2568838/Spac…
In the Early Bronze Age bronze was made of copper and arsenic rather than copper and tin, due to the scarcity of sites where tin can be mined. Only after improvements in long-distance trade the copper-tin alloy became dominant. makin-metals.com/about/hi…
The architects of the 2005 de Young museum in San Francisco hoped the building’s copper facade would have turned green by now, like the Statue of Liberty, but new estimates give it 50 years. sf.curbed.com/2017/5/31/1…
In the 1970s, AMC released a special edition Levi's denim-branded Gremlin, with a faux-denim interior and copper rivets instead of seat buttons automobilemag.com/news/th…
Around 150 years before bimetallic Euro coins appeared, some bimetallic coins circulated in England. In J. Moore's 1840s privately-made "one penny model," proposed replacements for large copper pennies, a copper donut held a pea-sized silvery Queen Victoria disc. Some shopkeepers accepted them. en.wikipedia.org/wiki/184…
The most cited scientific paper in history, authored by Oliver H. Lowry, described one of the most important biological technique to easily measure the amount of protein in a solution based on their interaction with copper ions. It is now known as the Lowry's test. nature.com/news/the-top-1…
In 1943 to save copper for WWII production, the US Mint made pennies from steel with a coating of zinc. These pennies had a silver appearance rather than the traditional copper coloring. thesprucecrafts.com/how-r…
Scientists trained 17 rats to drive tiny cars; each rat stood on the aluminum floor of the car & gripped copper bars with their paws to complete a circuit to propel the car. By touching left/center/right on the bar, rats could steer to pick up rewards of Froot Loops morsels in the arena. cnet.com/news/rats-drive-…
While bronze is usually made from copper and tin, it can be made with copper and arsenic instead en.wikipedia.org/wiki/Ars…
Coins like pennies actually have no odor. Metals such as iron & copper catalyze a chemical reaction in skin oils which produces the source of the "metal smell", a compound called 1-octen-3-one, and every person's smell is slightly different. nature.com/news/2006/0610…
Frank Gusenberg, a gangster who was shot 14 times in the St Valentine's Day massacre, refused to identify his killer. His last words were, "I ain't no copper." en.wikipedia.org/wiki/Fra…
Approximately 140 million cellphones are discarded every year, which would equate to 2,100 metric tons of copper and 3.9 metric tons of gold, among other metals, plastics and glasses techwalla.com/articles/wh…
Along with blacksmiths, there are "whitesmiths" who work with tin or other light metals and "brownsmiths" who work with brass or copper. en.wikipedia.org/wiki/Met…
, Ziprider, the world's longest zipline, located in Copper Canyon Mexico, is ~1.5 miles long and lets you travel at a speed of ~85 miles per hour. ziprider.com/rides/copper…
Moscow mules were created by a guy that couldn’t sell his vodka, another that couldn’t sell his ginger beer and a lady that had too many copper mugs copper.org/consumers/arts…
Copper and brass are naturally antimicrobial. en.wikipedia.org/wiki/Ant…
Today I learned of a Woman with β€˜Wi-Fi allergy’ sleeps in a $500 copper sleeping bag nypost.com/2019/09/27/wom…
Copper has antimicrobial properties and researchers found that a strain of human coronavirus - 229E - was rapidly destroyed on copper. ncbi.nlm.nih.gov/pmc/arti…
The Chrysler Building sits on land owned by Cooper Union, a non profit school. Because of Copper Union's non profit status this means that there is no property tax assessed to the property. Instead the Chrysler Building pays yearly rent to Cooper Union en.wikipedia.org/wiki/Chr…
Imbuing N95 face masks with copper oxide particles significantly reduces the risk of transmission of the novel-type of flu viruses ncbi.nlm.nih.gov/pmc/arti…
Today I learned about the Copper Scroll, an ancient treasure map. Found among the Dead Sea Scrolls, it relates 64 positions where gold and silver have been hidden. Though searches are ongoing, as of yet, no treasure has been found. en.wikipedia.org/wiki/Cop…
Today I learned of the Sword of Goujian, a completely untarnished 2000-year-old sword that was found in an ancient Chinese tomb. It also has an unusual sharpness for its age. This is due to its unique copper composition and the air tight scabbard it was found in, keeping it sealed from the elements. en.wikipedia.org/wiki/Swo…
Galvanic reactions between the State of Liberty's copper skin and wrought iron supports caused the iron to corrode. The Statue required extensive renovation, and was entirely disassembled and Teflon insulation placed in between the iron and copper en.wikipedia.org/wiki/Gal…
Power lines are made of aluminum and not copper because even though aluminum lines must be 1.5 times thicker to match the same conductivity, they're still 2 times lighter. youtu.be/yn9qhQSMCRk
The Statue of Liberty was originally a dull copper color, but after 20 years it oxidized and was covered in green petina. Congress wanted to paint away the corrosion, but the Army Corps of Engineers concluded it "softened the outlines of the Statue and made it beautiful." en.wikipedia.org/w/index.…
Because copper was prioritized for conventional war materials, the Manhattan Project borrowed 14,000 tons of silver from the US Mint for the electromagnets used in the Oak Ridge uranium refining plants. americanscientist.org/art…
People originally thought pennies would bring good luck because of religious beliefs.Ancient civilizations said metals-like copper-were gifts from Gods.Also, it comes down to the battle between good and evil-Finding a penny heads up meant you’d have luck on your side, tails would mean bad luck. rd.com/culture/why-are-pe…
There was a copper scroll found among the Dead Sea Scrolls in 1952 that is not a literary work like the others. Instead it lists the locations of valuable treasures such as silver and gold that have been buried or hidden. historicmysteries.com/cop…
The first Zildjian cymbals were created in 1618 by Avedis Zildjian, an alchemist who was looking for a way to turn base metal into gold. He made an alloy of tin, copper, and silver into a sheet of metal, which could make musical sounds without shattering. en.wikipedia.org/wiki/Ave…
Ships are painted red below the water line to aid efficiency and speed through the water as marine growth on the ship’s hull increases friction and slows down the speed – therefore ships "bottoms" are most often painted in a red copper anti-fouling paint. nauticapedia.ca/Articles/…
Today I learned about Geamana, an entire village submerged by the still-growing toxic waste from a copper mine boredpanda.com/geamana-vi…
In 1799, the Italian scientist Alessandro Volta fashioned an arm-long stack of zinc and copper discs, separated by salt-soaked cardboard. This β€œvoltaic pile” was the world’s first synthetic battery, but Volta based its design on something far olderβ€”the body of the electric eel. theatlantic.com/science/a…
The metallic odor of copper and iron does not come from the metal itself but from oils in our skin that decompose into volatile substances when we touch the metal nature.com/news/2006/0610…
Airplanes made of carbon fiber composites need to have a thin mesh of conductive material, such as copper, applied on their surface to dissipate lightning strikes otherwise they could sustain heavy damage. compositesworld.com/artic…
To refine uranium for the nuclear bomb dropped on Hiroshima, huge coils for electro magnets were needed, and when people in charge couldn't find enough copper, because of the war, a creative solution was provided and tons of silver were borrowed from the USA national treasury to make them. insidescience.org/news/si…
Bugs and some other animals have green blood because they use copper to bind oxygen instead of iron sciencedirect.com/topics/…
The largest by land mass in the US, San Bernardino County, California has over 101,000 mining claims and over 3,000 mines. Many of the mines are for gold, silver, copper, and tungsten. thediggings.com/usa/calif…
Since 2005 it has been illegal to carry more than five dollars worth of pennies and nickels outside of the United States when traveling (due to people melting them down for copper) thesprucecrafts.com/coinf…
Despite their name, rare-earth elements are, except for radioactive promethium, relatively plentiful in Earth's crust. In fact, cerium's more abundant than copper. However, due to geochemical properties, they are typically dispersed and not often found concentrated in minerals. en.wikipedia.org/wiki/Rar…
Today I learned about a 4000 year old Babylonian tablet, written as a complaint letter to a copper merchant from an angry customer. en.wikipedia.org/wiki/Com…
Bloody Falls National Historic Site of Canada memorializes the Bloody Falls Massacre in 1771 and the murder of two priests by Copper Inuit Uloqsaq and Sinnisiak in 1913. It also has archaeological remains of Pre-Dorset, Thule, First Nation and Inuit peoples over the last 3000 years en.wikipedia.org/wiki/Blo…
Despite it consistently ranking among the lowest in GDP per capita, the Democratic Republic of the Congo has an estimated $24 trillion in untapped minerals, having 70% of the world's coltan, a third of it's cobalt, over 30% of its diamond reserves, and a tenth of its copper. en.wikipedia.org/wiki/Dem…
Today I learned of Frank Gusenberg, he died of 14 gunshot wounds a few hours after he was shot during the St. Valentine's Day Massacre. When asked who shot him, he replied " No one...nobody shot me." His last words were "I ain't no copper." wikipedia.org/wiki/Frank_…
At the end of the 17th century in an attempt to modernize society, Russian Emperor Peter the Great taxed any men who didn't shave their beard. Those that paid the tax carried around a copper or bronze token as proof they had paid. smithsonianmag.com/smart-…
Ketchup polishes brass and copper. apartmenttherapy.com/how-…
A 75 year old Georgian woman accidentally cut off Internet access to all of Armenia while searching for copper wire. theguardian.com/world/201…
In 1657 Otto von Guericke, having pumped the air from two copper hemispheres, creating a vacuum, showed that two teams of horses could not pull apart "nothing at all." en.wikipedia.org/wiki/Ott…
The Church of Scientology tried to frame Journalist Paulette Copper for a bomb threat she had nothing to do with because she spoke out against the church abc.net.au/news/2015-07-1…
6,000 years ago, extensive copper mining operations in North America polluted the Great Lakes region. Isle Royale, a national park found in the State of Michigan, features high levels of copper, lead, and potassium in the ancient sediments. eos.org/articles/miners-l…
Some invertebrate animals use copper-based hemocyanin to carry oxygen instead of hemoglobin, giving their blood a blue colour en.wikipedia.org/wiki/Hem…
Thomas Edison told representatives of the copper industry it was a shame he didn't have a "chunk of it". The representatives decided to give a square foot of solid copper to him for his "continuous stimulation in the copper industry" en.wikipedia.org/wiki/Tho…
95% of all copper ever mined was extracted after 1900. More than half has been extracted in the last 24 years. en.wikipedia.org/wiki/Cop…
Today I learned of the oldest recorded customer complaint. 4000 years ago, a customer complained to Ea-nasir that he was sold inferior copper ingots. en.wikipedia.org/wiki/Com…
About The Cat House in Riga, Latvia. A wealthy tradesmen was upset at being refused membership into a Tradesmen Guild. In retribution he had two copper statues of angry-looking cats with arched backs placed on buildings, with the ass of each statue directed towards the guild building. en.wikipedia.org/wiki/Cat…
Brass, Copper and some other alloys, when used as door knobs in hospitals, kill bacteria, even antibiotic ones such as MRSA far faster than steel and aluminium due to the Oligodynamic Effect news.bbc.co.uk/1/hi/healt…
There is a 4000 year old clay tablet which is a customer's letter complaining about sub-standard copper and wanting a refund. en.wikipedia.org/wiki/Com…
George Washington’s teeth were made from ivory, lead, copper, silver, horse teeth, cow teeth, and slave teeth, but not wood. mountvernon.org/george-wa…
The first transatlantic fibre optic telephone cable had problems with sharks attacking and destroying it because they removed the shielding for High Voltage that was required for copper phone cables. en.wikipedia.org/wiki/TAT…
Today I learned of Maragretha von Waldeck, daughter of Philip IV and believed to be one of the inspirations for the original Snow White fairytale. One of the reasons is that her father owned several copper mines where the majority of the workers were children that lived in a village, not unlike the seven dwarfs en.wikipedia.org/wiki/Mar…
Some animals use copper, instead of iron as a way to transport oxygen through their blood en.wikipedia.org/wiki/Hem…
The Horseshoe Crab, which has been around for 450 million years, bleeds blue blood because it has Hemocyanin, which has copper, instead of hemoglobin as a transport protein. en.wikipedia.org/wiki/Hor…
Rather than hemoglobin, some animals use hemocyanin. Rather than iron they use copper. en.wikibooks.org/wiki/Str…
The Statue of Liberty originally wasn't green. The statue is made of copper which corroded naturally to get this color. newyorker.com/magazine/20…
In 2011, a 75 year old Georgian woman accidentally cut off internet access to almost all of Armenia while scavenging for copper to sell as scrap theguardian.com/world/201…
Auburn Correctional Facility in Upstate NY, has a soldier statue placed on top of the prison. In 2004, the state learned that the statue was "anatomically correct" and ordered the statue be "incorrected". Some workers made T-shirts reading "Save Copper John's Johnson" after the statue's nickname en.wikipedia.org/wiki/Aub…
In the 1960's, for fear of having their submarine communication cables cut by the Soviets, the US military sent 480,000,000 copper needles into space to secure their communications infrastructure. The needles acted as a mirror for radio waves, enabling communication between distant sites. en.wikipedia.org/wiki/Pro…
The NASA Apollo guidance computer used 'Rope Memory' - actual woven ropes of copper wire bound in ferrite cores - as contemporary computer disks could never survive the radiation of space youtube.com/watch?v=Wquha…
Spiders Have Blue Blood Because In Spiders Oxygen Is Bound To Hemocyanin A Molecule That Contains Copper Instead Of Iron As In Humans mediabunny.com/20-spider-…
That, due to a wartime shortage of copper, the Manhattan Project borrowed almost 15,000 tons of silver from the US Treasury to make wiring for the electromagnets in isotope-separating mass spectrometers. The wire, worth over a billion dollars at the time, was removed and returned after the war. en.wikipedia.org/wiki/Cal…
Today I Learned in 1963 MIT as part of Project West Ford put 500,000,000 copper needles into orbit around the earth to create and artificial Ionosphere. Large clumps of them are sl in orbit. They're called WESTFORD NEEDLES. (tracking link in comments) en.wikipedia.org/wiki/Pro…
The color of the Statue of Liberty is green due to Verdigris; patina that is formed when copper, brass or bronze is weathered and exposed to air or seawater over time. en.wikipedia.org/wiki/Ver…
While the Statue of Liberty was dedicated in 1886, it was not until 1900 that it attained its characteristic green colour. At the time, Congress authorized what is now $1.75 million to repaint the statue to its "original" copper colour, but due to public protest only the inside was painted. en.wikipedia.org/wiki/Sta…
The first battery was invented in 1799 by Italian physicist Alessandro Volta, the battery known as the Voltaic Pile, consisted of a stack of copper and zinc plates, separated by brine-soaked paper disks, the first to produce a steady current for a considerable length of time. en.wikipedia.org/wiki/Ale…
Cyanide mixed with copper when irradiated with UV light, could have produced simple sugars that formed the building blocks of life on early earth. phys.org/news/2018-03-rol…
Bloodworms have 4 fangs made of copper that help pull prey in and inject venom pubs.acs.org/cen/critter/…
There is a guy who made an entire electric toaster from raw materials - mining and refining steel, nickel, copper, mica, and making plastic - after being inspired by a Hitchhiker's Guide quotation. ted.com/talks/thomas_thwa…
Today I learned of the Purple Copper Butterfly. One of the rarest butterflies in Australia has a symbiotic relationship with ants that carry its larvae to a plant to feed then return it to the safety of the ant nest in the evening. conservationvolunteers.co…
Snails have blue blood due to the lack of iron, they used copper instead to transport oxygen. en.wikipedia.org/wiki/Hem…
From 1944-1946 most of the copper used to mint pennies was derived from recycling spent shell casings. streetdirectory.com/trave…
Today I learned of the "garden" at Qorikancha, an Incan temple located in Cuzco. The garden had gold, silver, and copper replications of corn, llamas, and people. khanacademy.org/humanitie…
In 1657 Otto von Guericke, having pumped the air from two copper hemispheres, creating a vacuum, showed that two teams of horses could not pull apart "nothing at all." en.wikipedia.org/wiki/Ott…
The green color of the Statue of Liberty does not come from copper oxide itself (which is black), but from copper oxide and sulfur dioxide (sulfur+CO2) plus chlorine which is malachite. TLDR: Statue of Liberty is green because it is now malachite! youtube.com/watch?v=JkRAa…
For more than a half century Montana would be known as the Treasure State because of its status as the country's foremost producer of metallic treasure--gold, silver, and, most importantly, copper. statesymbolsusa.org/symbo…
In 1982, the US mint changed over from pure copper pennies to zinc filled pennies. en.wikipedia.org/wiki/Pen…
The newly built American Copper Building in New York is designed to turn green over the coming decades, just like the Statue of Liberty. dezeen.com/2017/04/05/sho…
Chinese Drywall, used in the U.S. in the mid 2000s. It was so widely used and had so much sulphuric compound off-gassing, that it has destroyed (or is destroying) the copper components in houses across the U.S. en.wikipedia.org/wiki/Chi…
Certain metals (including copper, brass, silver, and gold) are naturally antimicrobial. A brass doorknob will self-sterilize in about eight hours if left untouched. en.m.wikipedia.org/wiki/O…
American Pennies produced before 1982 were 95% copper; from '82 onward, they are 97.5% zinc (both types were still produced in '82). When flipped, copper pennies "ring"; the zinc ones are completely silent. usmint.gov/learn/history/…
During the industrial revolution, toxic metals such as Copper Arsenite, Red Lead and Vermillion (Mercury) were used as food colouring for everyday foods like milk, cheese and tea. en.wikipedia.org/wiki/Foo…
One of the currencies used in the Roman empire were copper coins known as "as", plural "asses". en.wikipedia.org/wiki/As_…
At the inaugural modern Olympics in 1896, the winners received silver medals along with an olive branch while the runners-up received a copper medal with a laurel branch. en.wikipedia.org/wiki/189…
If two pieces of metal with a similar composition (ie, copper on copper) touch in space, they instantly become one. This is a process called "cold welding." esmat.esa.int/Publication…
Luminol has several drawbacks that can prevent it from being very effective. Copper and certain bleaches can trigger luminol in addition to blood. Horseradish sauce, traces of blood in urine, excessive smoke in an enclosed space and fecal matter can also cause positive results with luminol. en.wikipedia.org/wiki/Lum…
Pickups on an electric guitar work because of electromagnetic induction. Magnets in the pickup magnetize the string, as the string oscillates it induces a current in the copper coil of the pickup. animagraffs.com/how-an-el…
Today I learned of Walead Beshty, an artist who makes fragile glass and copper boxes and ships them to art galleries unprotected ufunk.net/en/artistes/wal…
The United States produced a half cent piece from 1793 to 1857. The half-cent piece was made of 100% copper and was valued at five milles, or one two-hundredth of a dollar. It was slightly smaller than a modern U.S. quarter. en.wikipedia.org/wiki/Hal…

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