Discovered by: evangelista purkinje the discovery that fingerprints are unique to each individual, are left behind on objects a person touches and can be lifted off those items is nothing short of miraculous this discovery completely changed the way that law enforcement conducted investigations. Platinum enjoys a fascinating history ancient egyptians (1200-700bc) was used it in small quantities combined with gold for decorative objects the techniques of the egyptians and the south american indians were lost in time, as were its sources platinum's modern discovery dates to the late 1600s. Platinum discovery date known to native south americans before columbus platinum is used in the chemicals industry as a catalyst for the production of nitric acid, silicone and it is ironic that the very properties that make platinum metal so desirable caused so many difficulties for its discoverers. This story is a continuation in a series of publications titled it's interesting to know, which covers various subjects related to the metallurgy of.
1 the discovery and excavation of pompeii and herculaneum had much influence on the visual arts of late 18th and early 19th century he studied roman antiquities and later with the discovery of pompeii and herculaneum he was noted saying that the best way to become great is to imitate greek. Platinum's history and properties appearance and characteristics platinum is used in jewelry, decoration and dental work the metal and its alloys are also used for electrical contacts, fine resistance wires and medical / laboratory instruments. Platinum is a relatively recent human discovery compared to such age-old metals as iron and copper, but it's rapidly found important uses you can find platinum (atomic number 78) buried deep in the middle of the periodic table in group vii among elements collectively known as the transition metals.
Although it's almost as rare as gold, platinum is mined far less than its other precious metal cousins heavier, more ductile and dense than both silver and gold, platinum - also known as little silver - had been used check out the latest inforgraphic by visual capitalist for a complete history of platinum. An accidental discovery leads to cisplatin because platinum was thought to have no biological activity, dr rosenberg and his colleagues researchers use cisplatin to control cancer cell division and expansion dr rosenberg then wondered whether cisplatin would also block cell division in tumors. Without the discoveries listed here the world we live in would be a completely different place this is a list of the 10 greatest discoveries that changed the world the rosetta stone is a rock discovered by napoleon's forces while travelling through egypt which held the secret to understanding egyptian.
Learn about and compare various platinum card offers discover it® card though the types and terms of platinum credit cards may differ, many can provide you with a higher credit limit, a lower apr and valuable extra benefits than the standard classic or gold level cards. The discovery of dna how was dna first discovered and who discovered it johann carried out experiments using salt solutions to understand more about what makes up white blood cells he noticed that, when he added acid to a solution of the cells, a substance separated from the solution. Platinum weddings, platinum albums, platinum credit cards, and of course platinum jewelry this is a look into the fascinating history behind platinum, its use in jewelry and industry, and a glimpse while platinum remained very rare, supplies were boosted by the discovery of the world's largest. Early history archaeologists' earliest discoveries of platinum date back to the ancient egyptians specifically, the famous casket of thebes was early uses platinum's credited discoverer was antonio de ulloa, who returned to spain in 1746 with platinum samples and news of this new metal's.
Although the modern history of platinum only begins in the 18th century, platinum has been found in objects dating from 700 bc, in particular the famous casket of thebes (see image) in the 18th century platinum was a tough challenge to european scientists trying to understand and use the metal. Lthough platinum may seem new, it is also legendary the ancient egyptians and south american incas prized it france's louis xvi proclaimed it the only oday, platinum again charms and enchants a new generation of consumers rare, classic and timeless, platinum is one of earth's rarest gifts. The modern discovery of platinum is attributed to spanish conquerors in the 17th century actually the name platinum was given by the spanish word, platina, meaning little silver one of the most important obstacles for a more widespread use of platinum in its history has been its limited supply.
The metal was used by pre-columbian indians but platinum was rediscovered in south america by ulloa platinum is one of the elements which has an alchemical symbol, shown below (right, alchemy is the symbol used by dalton for platinum is shown below [see history of chemistry, sir edward. Age of discovery, the explorations by the portuguese and prince henry the navigator, the spanish trade routes and the voyages of european navigators the age of discovery (part i) during the first half of the 15th century, the portuguese were encouraged by prince henry the navigator to explore. As the early hominids moved from the tropics into colder regions, they needed to adjust to new often harsh regions conditions(see previous video about it-survival during the stone age) perhaps the most important to their to their ability is to adapt the use of fire.