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Who Discovered the Four Moons of Saturn?

Who Discovered the Four Moons of Saturn?
One of the major planets in the Solar System, Saturn is comprised of 61 moons. It is popular for its four visible moons, namely Telesto, Prometheus, Dione and Titan. Aside from these, this planet also has hundreds of moonlets. In addition to these highly interesting details, it is also good to know certain information regarding its history including who discovered the four moons of Saturn. The Discovery of the Four Moons of Saturn Who discovered the four moons of Saturn? The first moon is Titan, which was discovered by Dutch astronomer Christiaan Huygens on March 25, 1655. The second one is Dione, which was discovered by Italian/French astrologer Giovanni Cassini in 1684. The third moon is called Prometheus, which was named after a powerful deity in Greek mythology. Stewart A. Collins discovered it sometime in October 1980. The fourth moon is named Telesto, which was named after a Greek mythological character. On April 8, 1980, astronomers John W. Fountain, Stephen M. Larson, Harold J....

Who Discovered Radioactivity?

Who Discovered Radioactivity?
Radioactivity has always been around since it is a natural part of the environment we have. It is said to be emitted by some of those things that we use everyday like the computer monitors and TV screens. Hospitals even use radiation for x-rays and other medical purposes. But who discovered radioactivity and made its usage possible? The Early Discovery of Radioactivity A Frenchman named Henri Becquerel is said to be the person who discovered radioactivity. In the year 1896, Becquerel got some naturally fluorescent minerals to be used in an in-depth experiment. The purpose of the experiment was to study the properties of x-rays. The properties were already discovered a year ago by Wilhelm Roentgen, and Becquerel wanted to further examine it. In the experiment, what Becquerel did first was to expose potassium uranyl sulfate to the rays of the sun believing that the energy of the sun will be absorbed by the uranium and then emit it outwards as x-rays. After exposing the potassium uranyl...

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 of a vacuum...

Who Discovered Aluminum?

Who Discovered Aluminum?
Though today it is one of the most common metals in the world, there was a time when aluminum was actually one of the rarest and most precious. It took the scientists who discovered aluminum years of experimentation before they succeeded in refining this elusive element. Aluminum originates from the compound “alum,” given that name by French chemist and politician Louis-Bernard Guyton de Morveau in 1761. From as far back as 1787, scientists had hypothesized the existence of an unknown base metal in alum. While not quite the man who discovered aluminum, British chemist and inventor Sir Humphry Davy, can be credited for naming it (first as “alumium” before being given its current designation) in 1808. It was in 1825 when a Danish chemist and physicist named Hans Christian Oersted developed a way of extracting small amounts of aluminum from alum by having anhydrous aluminum chloride react with potassium amalgam to produce a chunk of metal with properties similar to those of tin. German...

Who Discovered Alaska?

Who Discovered Alaska?
Alaska is one of the interesting and beautiful places to visit and a great spot for vacations. The beauty of the place would at times make people wonder who discovered Alaska. We can never really tell who it was exactly that discovered Alaska since there were already Indians, Aleuts, and Eskimos who were already living there before the first white man came. Outsiders Discover Alaska From what we know, Vitus Jonassen Bering was the first outsider who discovered Alaska. He was a Danish explorer who found the place in 1728 on a voyage coming from Siberia while on service for Russia’s navy. He traveled along the lines of St. Lawrence Island. However, he was unable to reach Alaska’s mainland. Read more VN:F [1.9.22_1171]please wait...Rating: 6.9/10 (14 votes cast)