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https://invention.cards/chloroform/ Chloroform | Invention & Discovery Cards Chloroform is a chemical that was identified for usage in anesthesia. Its discovery opened a new era in medical operations allowing patients to undergo... invention discovery chloroform cards https://invention.cards/oxygen-isotopes-and-atomic-weights/ Oxygen isotopes and atomic weights | Invention & Discovery Cards It was discovered that oxygen atoms had three isotopes: oxygen-16, oxygen-17, and oxygen-18. This finding led to the selection of carbon-12 as the standard for... atomic weights invention discovery oxygen isotopes cards https://invention.cards/acids/ Acids | Invention & Discovery Cards Lavoisier had named the active portion of the atmosphere oxygen (acid-producer) because it was thought that all acids containe d oxygen, but he was proven... invention discovery acids cards https://invention.cards/tetrahedral-carbon-atom/ Tetrahedral carbon atom | Invention & Discovery Cards A new three-dimensional representation of organic molecules demonstrated that molecules must be asymmetric to rotate polarized light, showing that the four... invention discovery tetrahedral carbon atom cards https://invention.cards/organic-radicals/ Organic radicals | Invention & Discovery Cards Through work with poisonous gas hydrogen cyanide, he discovered another gas cyanogen (CN_2), and went to show that carbon-nitrogen or cyano group is very... invention discovery organic radicals cards https://invention.cards/puerperal-fever/ Puerperal fever | Invention & Discovery Cards Puerperal fever is an infection that historically affected childbearing women, often leading to severe illness and death, and it was discovered that... invention discovery fever cards https://invention.cards/synthetic-gene/ Synthetic gene | Invention & Discovery Cards A synthetic gene was successfully placed inside a living cell where it functioned properly. This validated scientific conclusions about gene structure. invention discovery synthetic gene cards https://invention.cards/parachute/ Parachute | Invention & Discovery Cards The parachute is a device that offers resistance to air, thereby slowing down the descent of an object or person. It was demonstrated by safely lowering a dog... invention discovery parachute cards https://invention.cards/gas-lighting/ Gas lighting | Invention & Discovery Cards Gas powered light involved the burning of coal to produce flammable gases, which could be transported and used for illumination. It revolutionized lighting,... gas lighting invention discovery cards https://invention.cards/far-east/ Far east | Invention & Discovery Cards Far east became a wonder-goal for European dreamers. far east invention discovery cards https://invention.cards/cyclotron/ Cyclotron | Invention & Discovery Cards The cyclotron is a particle accelerator that uses a magnetic field to make particles travel in a spiral path, allowing them to gain higher energies. This... invention discovery cyclotron cards https://invention.cards/cryptanalysis/ Code breaking | Invention & Discovery Cards Francois Vieta managed to break a code Philip II of Spain was using to send secret messages to Henry III of France. invention discovery code breaking cards https://chinacoinset.info/2026/03/1992-china-coins-of-invention-and-discovery-bu-5-silver-coins-set-428-5000-2/ 1992 China Coins of Invention and Discovery, BU 5 silver coins, set #428-5000 | China Coin Set https://chinacoinset.info/2018/08/yin-yang-collection-china-coins-of-invention-and-discovery-350-sets-no-panda-2/ YIN YANG COLLECTION CHINA COINS OF INVENTION AND DISCOVERY 350 SETS no panda | China Coin Set