Who Discovered It

Introduction Medicine is universal to all mankind. It may even be found amongst animals. For example tigers and dogs eat grass when they have digestive problems. Because sickness is common to all, it is impossible to say that one person discovered medicine. Here we give a brief history of medicine in the ancient world. Oldest Discoveries in Medicine Like animals, primitive man used plants as medicine. Animals seem to know what is good for them when they are ill. It may be inherited or instinctive knowledge, or a little bit of both. With prehistoric man it was probably the same thing. Over time with much experimentation, people came to know more and more about the helpful plants around them. These herbs, fruits and vegetables were therefore the first medicine humans discovered. Discovery of Medicine in Egypt Herodotus in his Histories praised the ancient Egyptians as “the healthiest of people,” second only to Libyans. He ascribed this to good weather conditions and a sound health...

The chemical element that bears the symbol K, potassium has an atomic mass of 39.0983 and an atomic number of 19. This alkali metal is soft and has a color of silvery white. It reacts to water and it oxidizes in air. Aside from this, the element can produce enough heat to burn evolved form of hydrogen. This element is commonly found in seawater as well as in ionic salt. Various fruits are also rich in this element. To know more about this important chemical element, it is best to start with the discovery of potassium. Historical Background Who discovered potassium? The alkali metal was discovered by Sir Humphry Davy in 1807 in England. The discovery of the element happened when he used electrolysis to process caustic potash. According to records, it is the first alkali metal to be discovered using electrolysis. At first, there are no distinctions between potassium and sodium. However, after the 18th century, Davy performed the technique once again and extracted sodium. At this time, he...

Who discovered fireworks? The Chinese discovered fireworks and gunpowder about two millennia ago during the Sung Dynasty. A popular story tells how a cook stumbled upon it when he unintentionally mixed sulphur, saltpeter and charcoal. The mixture was combustible: it burned and when stored in a bamboo case exploded. This may be considered the first fireworks ever made. But not for the same purpose as fireworks are now used—in celebrations. The Chinese had a more urgent issue to deal with. They built rockets powered with this new powder and used them well against the Mongols in the 1200s. A thousand years later, another Chinese man discovered he could make firecrackers. This time it was a Chinese monk from the city of Liu Yung, in Hu Nan province. The monk’s name was Li Tian. His achievement was so significant to the Chinese that they built a temple for him during the Song Dynasty. Since then, the Chinese have been celebrating the discovery of fireworks on April 18 by making offerings...

When it comes to cracking complex number riddles, equally complex number formula should be used. This is where a quadratic equation comes in. Breakthroughs in advanced science and mathematics became possible through the help of a quadratic equation. Incidentally, who discovered the quadratic formula? Numbers and Letters Quadratic formula makes us of not just numbers but also letters in an equation. To solve for an unknown value, letters took its place in the equation. An example of this is the Pythagorean formula. The Babylonians were said to have used a similar equation in their math problems. However, their use of it was only in a partial sense. The Babylonian equation system should have been more complex for some mathematicians to consider that a Babylonian was who discovered the quadratic formula. Two Indian Mathematicians Brahmagupta: An Indian mathematician from Brahma-Sphuta-Siddhanta used a complex number and letter algebraic system. Aside from this, he also considered negative...

Chlorine is a widely used element in many facets of human life. For one thing, it is used to make drinking water safe. A lot of the common things we use today are produced with the help of this element. Examples of which are textiles, dyestuffs, medicines, petroleum products, paint, foodstuffs, solvents, and paper. It is also used to manufacture compounds such as chloroform, bromine, and carbon tetrachloride. Carl Wilhelm Scheele is credited for having discovered chlorine. Early Uses Like all elements, it has always been around only that we do not recognize it as being there. This element isn’t actually found free in our surrounding natural environment. It is usually found in nature combined with other elements into different types of compounds. If you’re looking for it in the environment you would find it in salt and other minerals like sylvite and carnallite. Salt, which is a common compound of this element, has been used by man since ancient times. We have evidence in...