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Who Discovered Hydrogen?

Who Discovered Hydrogen?
Known as an odorless, colorless and nonmetallic flammable gas, hydrogen is one of the most abundant elements in the universe. This element is important to the formation of stars belonging in the main sequence. However, the gas is very rare in our planet. The chemical element has various industrial uses. Moreover, the element is important to the discovery of the atomic structure. To learn more about this element, it is best if we start with the history of the discovery of hydrogen. Historical Background Who discovered hydrogen? Henry Cavendish discovered the element in 1776. He found out that various elements including hydrogen composed water. Cavendish also discovered the gas from a certain metal-acid experiment that he performed. Antoine Lavoisier named the gas hydrogen in 1783 when he and Pierre-Simon Laplace proved the findings of Cavendish that water could be produced when the gas is burned. The element was first liquefied in 1898 by James Dewar. He did this with the use...

Who Discovered DNA?

Who Discovered DNA?
The story of who discovered Dna is a story of broken friendship that gave way to one of the greatest breakthroughs in Science. But it is a wonder what could have happened if the friendship had gone smoothly to the end. Linus Pauling Linus Pauling was a physical chemist who put forward a Dna model out of practical thinking that mathematical estimation in the 1950s. He was fascinated with Dna research. He would have been the man who discovered Dna if not for his aloofness from other English scientists. This kept him from being updated as other scientists were, like Watson and Crick. James Watson and Francis Crick The discovery of Dna or deoxyribonucleic acid happened when James Watson and Francis Crick were working together to find out the configuration hemoglobin. As they were doing so, they stumbled upon this particular acid cell. After much collaboration with other scientists, they were later credited with being the men who discovered Dna. Today, their names are associated with the discovery...

Who Discovered Oil?

Who Discovered Oil?
Nowadays, we use different types of oil – for cooking, maintenance of vehicles, and for other things. But where did this really start? Who discovered oil? A Part of Human History Ever since the start of recorded history, it was known that oil was already part of man’s existence. Earliest records point to about two hundred million years in the past before the dinosaurs roamed the lands. But there were no actual records of the first person or group who discovered oil. Some sources of oil come from animal fat. That is why no one is sure whether the oils used during ancient times actually refer to animal fat or the ones that can be found under the ground. Ancient Writings Early Greek writings show how oil was already a necessity. It was used to set fire to the fleets of enemies. Its thicker version, named as “Pitch,”was also used as a waterproof blocker for Noah’s ark and the basket where the baby Moses was said to have been placed. Also, oil was used by American Indians during their...

Who Discovered Cystic Fibrosis?

Who Discovered Cystic Fibrosis?
Also referred to as mucoviscidosis and mucovoidosis, cystic fibrosis is a genetic disorder that affects mainly the secretory glands. Common symptoms of this difficult medical condition include shortness of breath, frequent chest infections as well as salty tasting skin. Likewise, patients of this disease can experience excess mucus production, poor weight gain and coughing. In addition to these important details, it is also good to know something about its history including who discovered cystic fibrosis. The Discovery of Cystic Fibrosis Who discovered cystic fibrosis? Bohemian pathologist Carl von Rokitansky made the first description of the disease, which he made as part of his report on a fetal death caused by meconium peritonitis. Likewise, cystic fibrosis was also associated with meconium ileus, which was first described by Austrian physician Karl Landsteiner. In 1936, a Swiss pediatrician named Guido Fanconi described the clear association between bronchiectasis, cystic fibrosis of...

Who Discovered Copper?

Who Discovered Copper?
Introduction Who discovered copper? Nobody knows. But evidence suggests that copper was the first metal ever discovered and used by man. Or at least one of the oldest. In modern day Iraq, archeologists once found a copper pendant over 10,000 years old. Unlike silver, copper is often found uncompounded in its natural state. So it is likely that humans learned to use copper first, perhaps along with gold and meteoritic iron. History of Copper Two of the world’s oldest civilizations made use of copper – Chaldea and Sumer. They used copper to make military equipment such as bows, arrows, spear heads and helmets. Archeologists have also unearthed small items like copper pins, harpoons blades and pots made of bronze (a copper alloy). Sumerian craftsmen made beautiful sculptures made from copper and mounted them on walls. The Imdugud Relief is a fine example of this. It dates from 3,100BC and shows an eagle with the head of a lion, holding a stag in each claw. Copper can be mixed with other...