Hydrogen: the most abundant element in the universe. Normally it has been considered to remain a non-metal at any range of temperatures and pressures. That is, until now. Recently this year, hydrogen was changed into a metallic substance, which could conduct electricity. An experiment conducted by William J. Nellis et al. at the Lawrence Livermore National Laboratory accomplished this feat. Hydrogen was converted from a non-metallic liquid, into a liquid metal. The likelihood that the most abundant
Nickel is one of the most important elements on the periodic table. It has plenty of history, as well as a huge importance to society. Its has unique chemical, physical, and geological properties. Nickel is used commercially in abundance, as it is used anywhere from simple art products such as ceramics to complex structures such as tubing for desalination plants. It is even used in the American five-cent coin, the "nickel".Nickel was discovered by Axel Fredrik Cronstedt, in Sweden, during the year
Corrosion and rubbing alcohol vs. corrosion and hydrogen peroxide “Are brass, lead, iron, and aluminum more likely to corrode in solutions of rubbing alcohol or hydrogen peroxide?” a. Definition-corrosion, rust, oxidation Corrosion is the atmospheric oxidation of metals. Rusting is essentially a process of oxidation in which iron combines with water and oxygen to form rust. Rust is the reddish-brown crust that forms on the surface of iron. Rust, a chemical compound, is a hydrated ferric oxide Fe2O3·nH2O
remarkable features of Mercury are compressional cliffs or faults, just the sort of wrinkles that might form in the crust if the interior of the planet shrank slightly " (Morrison, 74, 1993). It is speculated that it was the solidification of Mercury's metallic core that caused this global shrinkage. Mercury is also " . . . enriched in metal or depleted of rock " (Morrison, 74, 1993). It is also believed that some of the inner core of Mercury is still in a fluid state. Scientists also believe that Mercury's
to reduce into carbon monoxide. This reaction absorbs some heat and lowers the temperature of the upper part of the furnace to roughly 1300° C. CO2(g) + C(s) + heat ® 2CO(g) This carbon monoxide then reduces the iron oxide to a metallic iron, which is molten at the temperature of the reaction. This takes place in middle and upper parts of the furnace. 3CO(g) + Fe2O3(s) ® 2Fe(l) + 3CO2(g) The limestone in the charge is to remove any existing silica left in
The Molten Core Theory The center of the Earth is composed of a solid metallic core surrounded by a molten layer of liquid metal. This paper will discuss the reasons to believe the theory that the Earth has a molten core, and the important discoveries that have led to this generally accepted theory. It is very reasonable to agree with this theory when paying credence to the logical evidence that answers questions about the Earth’s core. This evidence includes information about the elemental
Plutonium Plutonium is a radioactive metallic element. Although it is occasionally found in nature, mostly all of our plutonium is produced artificially in a lab. The official chemical symbol for plutonium is Pu, coming from its first and third letters. Its atomic number is ninety-four. Plutonium is able to maintain its solid state until very high temperatures, melting at six hundred and forty degrees Celsius, and boiling at three thousand four hundred and sixty degrees. The density of Plutonium
variety have four legs, two bat-like wings, a long tail, and a lot of teeth. They breathe fire, are covered in scales, hoard treasure, and have dangerous claws. They vary in color, and can be any shade of the rainbow, white, black, or any of various metallic shades. They are usually fierce, and feast on young virgins or sheep sacrificed by nearby villagers in an attempt to pacify the beast (Blumberg 6-7, Lurie n.p, Walker, Tempest). The Eastern dragons, by contrast, are benevolent water spirits. They
Contradictory Impulses in Chopin’s The Awakening “Edna Pontellier could not have told why, wishing to go to the beach with Robert, she should in the first place have declined, and in the second place have followed in obedience to one of the two contradictory impulses that impelled her. A certain light was beginning to dawn dimly within her,--the light which, showing the way, forbids it,” (Chopin 34). The possibility of a life beyond the scope of motherhood, social custom, standards of femininity
Aluminum, symbol Al, the most abundant metallic element in the earth's crust. The atomic number of aluminum is 13; the element is in group 13 (IIIa) of the periodic table. Hans Christian Orstead, Danish chemist, first isolated aluminum in 1825, using a chemical process involving potassium amalgam. Between 1827 and 1845, Friedrich Wöhler, a German chemist, improved Oersted's process by using metallic potassium. He was the first to measure the specific gravity of aluminum and show its lightness. In
Ceramics - Incredible Refractory Materials Introduction First we will start with the definition of refractories and ceramics. Refractories and ceramics are non-metallic materials capable of maintaining physical and chemical stability at high temperatures. Refractories in modern practice are usually ceramic in nature, and are used in a wide variety of primary, secondary and tertiary industries. Wherever an industrial process involves heat in excess of 700 to 800 degrees Fahrenheit (roughly), one
gob-stopper and also bares a close resemblance to the internal structure of the Earth; a sphere divided into three layers, differing in density, composition, strength, and state. The densest of these layers is the core, which is composed largely of metallic iron, with small amounts of nickel and other elements². The less dense mantle then covers this layer, being composed of magnesium and iron silicates. The outermost layer is that of the crust, it has the lowest density of all the layers and can be
and easily bent or twisted. It had a metallic surface and was brittle. It was silver in color. A flame from a Bunsen burner was held to the Mg, and it ignited, giving off a brilliant white light. Looking directly into the light resulted in temporary blindness, which would explain the warning on the procedures that strongly suggested not looking directly into the light. After the flame had extinguished itself due to lack of fuel, the Mg had turned from a metallic strip to an off-white powder, which
fresh, spontaneous, and uniquely hip compared to the 1950's architectural style adopted by its neighboring buildings which line the streets of downtown Hartsville. I briefly pause amid several small, circular stainless steel tables and matching metallic armchairs which cover the sidewalk in front of the shop and notice a familiar looking figure sitting in one of the three chairs in front of the right window. The petite young woman dressed in khakis and a black sweater appears relaxed with her
Sodium (Na) Sodium has an atomic number of 11 and a mass of about 23g. It is a silvery white-metallic element classified under the alkali metals. Sodium has been known since early times and was used by the people of Mesopotamia and Egypt to make glasses. Sodium is the sixth most common element found on the earth. It is usually not found in nature but more often in compounds such as salt (NaCl). Sodium conducts heat and electricity easily. Without this element life could not exist. Each compound
gloomy house. The vivid colors and visuals in the story not only force the reader to picture the surroundings in his or her mind, but also contain the hidden connotations of gravity and despair. The inclusion of sounds, like the "distinct, hollow, metallic, and clangorous, yet apparently muffled reverberation," (Poe 27) and aural references to musical instruments, such as the lute quote by De Béringer suggests that the reader experience the mood of the tale in a more auditory and sensory appealing
bacteria’s ability to ferment lactose. This test is accomplished by placing the bacteria on Eosin Methylene Blue agar. The agar is selective for gram negative bacteria and those bacteria that can ferment lactose will have colored growth, usually a metallic green sheen. The Sulfur Indole Motility agar tests for three separate characteristics; sulfur reduction, indole production, and motility. The SIM medium is a semisolid medium; this facilitates the motility test. The medium contains sulfur, if
that time, as New Wave” (http://www.erols.com/alloyd/adam2.htm). “New Wave” had a particular style that utilized the synthesizer as a main instrument. The synthesizer was a machine that electronically produced music. It gave a certain artificial and metallic feel to the music. The Cure and Erasure, bands formed during that period of time, were some of the bands that implemented the synthesizer into their music. Though both bands fit into the category of “New Wave” the feel of their music is somewhat
one’s own originality.” Cartier-Bresson worked only with a Leica camera, one of the quietest and fastest of the day. The Leica camera was perfect for Cartier-Bressons documentary style photography, but as an added effect he put black tape over the metallic front as to remain as hidden as possible, a technique that has been copied ever since. He used mainly a 50mm lens and black and white film. Cartier-Bresson shot his pictures with a 50mm lens, because in order to capture a decisive moment, one must
with the ammunition is the creation and use of caseless ammunition, which eliminates the need to eject a cartridge. Plastic ammunition has been designed primarily for training but could be effective for terrorists. If a gun made up completely of non-metallic parts, then plastic bullets would be desirable in evading detection at airports. While some terrorists employ the use of assault rifles, light-machine guns, sub-machine guns and even shotguns, the pistol is still the most popular. Revolvers and self-loading