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Who Discovered the South Pole?

Who Discovered the South Pole?
The facts about the South Pole show that James Cook was the first to circumnavigate Antarctica. He wasn’t able to land, but seeing the rocks in the ice, realized that there was land beyond it. Some claim American John Davis was the first to land on continental Antarctica on February 7, 1821. It should be noted that Davis’ landing is not accepted by all historians. The Early 1800s Following Cook, several seafarers ventured forth to explore the continent and its surroundings. Among the earliest ones were Capt. Thaddeus Bellingshausen (January 27, 1820), the British explorer Will Smith and Nathaniel Palmer, an American. Another interesting fact about the South Pole is that prior to 1821, no one stayed for extended periods. This changed in the winter of 1821 when 11 British men aboard the British ship Lord Melville stayed there for a winter season. They stayed at the South Shetlands Group, north of the Antarctic Peninsula. The Mid to Late 1800s By this time the existence of Antarctica...

Who Discovered Silver?

Who Discovered Silver?
Introduction Silver is a precious metal with many uses. It is used to in photography, dentistry, jewelry, utensils and tableware, currency, and optics. No one knows who discovered silver first. Like gold, it is one of the oldest elements known to mankind. History and Early Uses of Silver Humans have been mining silver for many thousands of years. Archeologists have found slag near the Aegean Sea dating back to 4000 BC. Silver is rarely found unmixed with other elements, so mining for it was difficult. The metal was often mixed with lead, which is poisonous. Many silver and lead miners died from lead poisoning in a few years’ time. Because of this, mining for these metals was forced labor, that is, slave labor. Silver has played an important role in shaping economies. In about 500 BC, the Athenian people discovered a silver mine in Laurion nearby. With this treasure they enriched their city and built a powerful navy. A rival city, Sparta, had its own silver mine. Carthage overran the area...

Who Discovered Gravity?

Who Discovered Gravity?
Gravity is the scientific term used to refer to the force exerted by a planet on objects nearby. This force is the one responsible for keeping the planets as well as the sun in their orbits. Gravity is also responsible for the development of tides. The force is important to keep high temperature in the stars’ interiors. In order to learn more about this concept, it is necessary to take a look at the history of the discovery of gravity. Read more VN:F [1.9.22_1171]please wait...Rating: 9.3/10 (15 votes cast)

Who Discovered Melanoma?

Who Discovered Melanoma?
A type of skin cancer, melanoma is a medical condition marked by a malignant tumor of melanocytes. Aside from the skin, this disease also affects other important body parts, namely the eye and the bowel. It is one of the deadliest types of cancer, affecting almost 160,000 individuals each year in the United States alone. The World Health Organization reported that melanoma causes approximately 48,000 deaths annually all throughout the world. Aside from these interesting facts, it is also good to know certain things about the history of this disease including who discovered melanoma. The Discovery of Melanoma Who discovered melanoma? As a disease, a French physician named Rene Laennac first described melanoma. He reported it in 1804 as part of the Faculte de Medecine de Paris lecture that was held in France. He then published it in 1806 as a bulletin. In 1820, an English general practitioner named William Norris reported melanoma for the very first time in English. One of his notable works...

Who Discovered Cri Du Chat Syndrome?

Who Discovered Cri Du Chat Syndrome?
Also called by the names Lejeune’s syndrome, 5p minus syndrome and chromosome 5p deletion syndrome, cri du chat syndrome is a genetic disorder caused by the absence of a part of chromosome 5. Patients usually exhibit cat-like cries. It affects approximately 1 in 20,000 live births. Aside from knowing the different signs and symptoms, causes as well as treatments for this medical condition, it is good to learn more about its history including who discovered cri du chat syndrome. The Discovery of Cri Du Chat Syndrome Who discovered cri du chat syndrome? In 1963, French geneticist Jerome Lejeune first described this disease. He was also a pro-life pediatrician who discovered the connection between chromosome abnormalities and diseases. He devoted a major part of his career treating children affected by Down’s syndrome. Additional Facts and Other Highly Important Information The areas primarily affected by cri du chat syndrome are the nervous system and the larynx, which cause the cries...