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Who Discovered Amnesia?

Who Discovered Amnesia?
Amnesia is a highly interesting medical condition wherein the memories of patients are disturbed. A number of factors can cause this serious health problem including disease and trauma, both of which could lead to brain damage. It comes in two major forms, namely retrograde amnesia and anterograde amnesia. Today, it continuously affects many people from various parts of the world. Aside from these and other interesting features, it is good to know who discovered amnesia. The Discovery of Amnesia Who discovered amnesia? A French psychologist named Theodule-Armand Ribot first observed that patients tend to lose recent memories because of retrograde amnesia. Because of this, medical experts started to call the gradients of memory loss as Ribot gradients. Aside from this particular type of amnesia, there is also anterograde amnesia, a medical condition wherein patients are unable to turn their immediate memory into long-term memory. Additional Facts and Other Important Details There...

Who Discovered the Slope Formula?

Who Discovered the Slope Formula?
The slope formula determines the position of a line with respect to its “x” and “y” coordinates. This mathematical calculation is the concern of Analytical Geometry which solves linear and geometric problem with the aid of Algebra. Thus, to the question who discovered the slope formula, it is necessary to look into who started Analytic Geometry. Rene Descartes 1596 Rene or Renee Decartes is the father of Analytical Geometry. He was a French mathematician, physicist, philosopher, and theologian. Many mathematics experts acknowledge him as the man who discovered the slope formula. He was said to have provided a method to solve the problem of lines and slopes in mathematics by his prowess in Algebra and Geometry. The basic slope formula is y=mx+b while the more complex point-slope formula is y-yl=m(x-x1). Because Descartes is the father of Analytical Geometry and this subject centers mostly on lines and slopes, he was the first to introduce solutions to slopes and linear problems....

Who Discovered Tin?

Who Discovered Tin?
One of the most amazing facts about tin is its usage since ancient times. There is evidence that Stone Age men used it 3,500 years ago. How the ancients discovered it is still a mystery. Discovery and History of Tin During the Late Stone Age people learned to put tin and copper together to produce bronze. Bronze was much easier to manipulate than copper and its use became widespread. This discovery ushered in the Bronze Age, which influenced the Egyptian, Mesopotamian and Indus Valley civilizations. Everything from weapons to utilities were fashioned from these materials. One of the oldest tin mining sites is in the Taurus Mountains in Turkey. An assessment of the facts about tin will show that usage of tin as a pure metal didn’t start until 600 BC. Tin was used heavily during the Medieval Ages, with Cornwall being one of the leading producers. Tin were also discovered and used in Asia. China, Laos and Indonesia were among the countries that also utilized the element. By 1931, the International...

Who Discovered Genetic Engineering?

Who Discovered Genetic Engineering?
When studying the facts about genetic engineering, the names of Herbert Boyer and Stanley Cohen will always be mentioned. In 1973, the two scientists invented a DNA cloning technique. For many historians this was both the discovery and beginning of this science. Cohen and Boyer’s Work Cohen and Boyer utilized enzymes to slice a bacteria plasmid. Then they placed this in another DNA strand. These strands were obtained from the same bacteria. Next, the two inserted frog DNA into the bacteria. Their work proved that mixing and manipulating genes was possible. Today several enzymes are used to slice the DNA in different ways. The mapping of DNA has made it possible to manipulate genes more easily. As more facts about genetic engineering emerged, it became possible for scientists to produce insulin for diabetic patients. At the same time the technique has been employed for making EPO (used to treat patients with kidney ailments). This was followed in 1990 when genetic therapy was invented....

Who Discovered the Constellation Aquarius?

Who Discovered the Constellation Aquarius?
Introduction The constellation Aquarius is one of the twelve signs of the zodiac. It is located in a region of the sky known as the Sea, called thus because of many water-related constellations in the area. These include Pisces (fish), Cetus (whale) and Eridanus (river). Aquarius itself is the sign of the Water Bearer. People often mistake it for a “watery” sign because of the use of water in its symbolism. According to astrologers, Aquarius is not a water sign but an air sign. It comes after Capricorn and before Pisces. Its ruling planets are Saturn and Uranus. The word “aquarius” means “cup bearer. Discovery and History of Aquarius Babylonian astronomers probably discovered the constellation Aquarius. They listed the constellation as marking the autumn equinox in September in 4000 BC. Aquarius is also featured in the star catalogues of Ptolemy, Eudoxos and Aratus. Ancient people visualized Aquarius as a man bearing a vessel of water and pouring it downwards. This is how it came...