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Home / News / Tags / metal
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Spot welding is a technique generally used to bond metals shaped into sheets no thicker than 3 millimeters. Unlike other welding techniques, spot welding can create precise bonds without generating excessive heating that can affect the properties of the rest of the sheet. This is achieved by delivering a large amount... |
2 August 2008
06:26 GMT |
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Metals are basically used today in practically any application, due to their strength and durability. However, these two properties can quickly turn against the manufacturer, especially while shaping and cutting large pieces of metal, such as the 'I beams' used in skyscraper construction or other large supp... |
24 April 2008
08:45 GMT |
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Sharks are extremely sensitive to electric fields, and this enables them to detect their preys, as all living creatures emit weak electric fields. But this ability of the sharks comes with pros and cons: in captivity, sharks avoid metals reacting with seawater and producing an electric field. In fact, this may be the... |
23 April 2008
03:59 GMT |
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Blowtorches have been invented in the late 19th century and have since become both cool and useful to use in different applications ranging all the way from welding and cutting metal, lighting up cigars, melting jewelry and even cooking! They work on the basis of an oxygen and fuel gas mix, fed into a torch head from... |
3 April 2008
09:08 GMT |
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Researchers from University of Rochester have turned aluminum gold just with the help of a laser, meaning they changed its color into gold. Not only that, but they have been able to recreate a series of other colors in several other metals such as platinum, tungsten and gold. Almost one year before, Chunlei Guo had d... |
1 February 2008
10:36 GMT |
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1.Mining started in the Neolithic (New Stone Age), 12,000 years ago, when people gathered grit from the surface of the ground, and later from subterranean deposits. At first, grit mines were made of vertical wells, up to 2 m (6.6 ft) wide and 10 m (33 ft) deep. Tunnels were excavated at the bottom of the well, until ... |
28 January 2008
06:56 GMT |
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Well, it looks like 2008 has one hell (sorry) of a start, at least as far as rock and metal musicians and players are concerned. Sabian is a name that needs little introduction: one of the leading, legendary names in the music industry and one of the best and biggest cymbals manufacturer; from blues to death metal, ... |
4 January 2008
03:05 GMT |
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Most of the metals we use are alloys, combinations in which one chemical is a metal. That's because pure metals rarely have the ideal properties for a certain task, but they can be improved by adding other metals. Resistance, hardness, melting point and electric conductivity are properties linked to the crystall... |
3 January 2008
06:12 GMT |
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There are over 200 species of plants linked to the existence of underground ore deposits. Plants usually need in low amounts metals for their metabolism. If there is too high the amount encountered in the soil, the plants depose the absorbed excess in their tissues. Sometimes, the deposits can be so big, that when th... |
21 November 2007
10:06 GMT |
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This device is a prototype of an antenna, which uses ionized gas instead of metal to transmit and receive signals, decreasing interference and boosting the functionality. Some of its key features include the ability to focus a signal beam easily and to communicate signals in very short pulses, which could prove extre... |
13 November 2007
11:00 GMT |
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They may have lived during the "New Stone Age" (Neolithic), but according to European figurines which are 7,500 years old, women liked to look sexy even back then. Recent digging at the site of a settlement of Vinca culture, Europe's biggest known Neolithic civilization, on Plocnik (southern Serbia), uncovered a... |
13 November 2007
06:12 GMT |
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New studies in astrophysics bring an unexpected result. Stars with high metalicity have fewer stellar companions. The research was conducted at the Australian National University and the University of New South Wales and could help in the search for stars that have Earth-like planets.The metalicity is a scientific te... |
9 November 2007
08:55 GMT |
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Not only the observable universe is not heavy enough to explain its current configuration, but calculations show that the previously thought mass is actually smaller by 10 to 20 percent, which brings even more questions into discussion. The subject involving the mass of the observable universe is one of the hottest t... |
5 November 2007
03:50 GMT |
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Humans have been searching since ever for the secret of the deathless life and ageless youth. They linked longevity to pha-4 encountered in nematode worms, looked at the hormones of the queen bee or that of the naked mole-rat to see why she lives so much longer than the workers, but by now, no drug boosting longer-li... |
1 November 2007
07:46 GMT |
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Lead is quite a dangerous material, but it's worse without it. Its absence in electronic devices has ruined missiles and stopped from gadgets to communications satellites and forced nuclear power plants. The cause is to be found in the tiny splinters, called whiskers, that develop by themselves from tin solder p... |
8 October 2007
07:05 GMT |
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Gold comes at a small price compared to platinum and palladium. And the main target of the palladium and platinum quest is not their use in jewelry. These precious and extremely rare metals are crucial in the automobile, chemical and pharmaceutical industries, being unmatched as catalysts in various chemical reaction... |
26 September 2007
05:32 GMT |
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At a first glance, the association of the words "metal" and "rubber" seems to be at least illogical, if not absurd. The material properties of natural rubber that make it an elastomer and a thermoplastic are exactly the ones engineers try to avoid by using metal.But metal has one problem, that makes scientists turn... |
23 July 2007
09:04 GMT |
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Mushrooms are yummy but sometimes they can be more than that. That's why a team at the University of Warwick is co-ordinating a global effort to achieve the genome sequencing of the most important mushrooms for the westerners: button or common mushroom (Agaricus bisporus). Decoding the genetic make up of the mus... |
18 July 2007
04:14 GMT |
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A new research has just proven the existence of a completely new type of electron wave on metal surfaces. Called the "acoustic surface plasmon," it will have profound implications in the fundamental understanding of chemical reactions on various surfaces.Bogdan Diaconescu and Karsten Pohl of the University of New H... |
5 July 2007
06:37 GMT |
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Carbon nanotubes, though a relatively recent find, have fueled the imagination of many scientists, who strongly believe that they are the future of electronic circuitry. Polymers are repeating structural units, or monomers, connected by covalent chemical bonds, present in many natural and artificial materials, from ... |
4 July 2007
09:01 GMT |
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The alchemists were some of the first scientists of the world, and even if they used to investigate nature, chemistry, metallurgy, physics, medicine, astrology, semiotics, mysticism, spiritualism and art, all as parts of one greater force, they are mostly remembered for trying to transform ordinary metals, like lead... |
14 June 2007
10:32 GMT |
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Superconductors are a class of materials that display exactly zero electrical resistance and the exclusion of the interior magnetic field (the Meissner effect) at extremely low temperatures, usually below -140 degrees Celsius. They are used in many applications, like MRI medical imaging scanners, levitating trains a... |
1 June 2007
05:45 GMT |
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Olive oil consumption keeps rising as it is considered much healthier than other food oils. But the olive oil extraction leaves large amounts of agricultural residues, like olive vegetable water, browse leaves and solid waste. A new research made by Dr. Germán Tenorio Rivas, a member of the research group "Solids co... |
29 May 2007
05:44 GMT |
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It may be the dream come true for conspiracy theory adepts in the JFK assassination. Using 21st century science, the FBI has performed a new analysis of the remains of the bullet that was used by the US government to conclude that Lee Harvey Oswald acted alone in assassinating President John F. Kennedy in 1963.A res... |
18 May 2007
08:06 GMT |
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There are a lot of puzzle games that go around in the wide virtual world. The reason for which there are so many is pretty simple: all of them are addictive and have something that keeps the person playing no matter what.For some it's the funny story. Or maybe the story behind the game is pretty interesting and ... |
11 May 2007
17:32 GMT |
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Gold (Au) is probably the most famous chemical element around the world. If you ask around, not many people will tell you they never heard of it. For many centuries, it's been used as currency, before the invention of paper money (which was made because of the lack of gold), in jewelry, and in many industry are... |
11 May 2007
10:43 GMT |
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Besides a big belly, beer can mean pure science. And to get the best beer head, you must use mathematics. New found formulas could explain why the foam of lager disappears in a moment, while a Guinness's sticks around. This mathematics applies not only for beer brewing, but in metallurgy, too. The foam of a beer... |
26 April 2007
04:09 GMT |
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Two researchers at the U.S. Department of Energy's Brookhaven National Laboratory have elaborated a new theory about the mechanisms of crystallization (freezing) of metals.They used the world's smallest pipette (laboratory instrument used to transport a measured volume of liquid) made from germanium nanowi... |
16 April 2007
03:12 GMT |
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There are guitar players who simply seem not getting along too cozy with their ordinary, 6 strings guitars. Also there are bands that are seeking for such a heavy bottom end that the heaviest-gauge (same 6) strings and the octaver FX are simply overwhelmed. Thus, the 7-stringed guitar came into being and the players ... |
13 April 2007
11:53 GMT |
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This one is for the metalheads: you know or at least have heard about the rock legends called Danzig. At least your girlfriends should know their frontman, Glen Danzig (I just know they've dreamt many times about an evening in his company...)Well, for the fans out there, a piece of nice music news: old and unrel... |
4 April 2007
11:43 GMT |
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Terahertz frequencies consist of electromagnetic waves (T-rays or T-light) in the region of the electromagnetic spectrum between 300 gigahertz and 3 terahertz, at the ending edge of far-infrared light.These waves usually travel in the line of sight, are non-ionizing and have the capability to penetrate a wide variet... |
29 March 2007
02:51 GMT |
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Today, the problem of bioacumulation of heavy metals in the organisms is severe. Copper, cadmium, zinc, tin, mercury are found in the anthropic or human affected ecosystems in levels that are 10 times higher than in nature. Heavy metals abound around us in tiles (rich in cadmium and zinc), fertilizers (copper), pesti... |
23 March 2007
11:50 GMT |
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Metal Gear Solid 2: Substance is a multi-platform updated version of the original MGS2 released for the PlayStation 2, as well as the Xbox and PC. The game contains the main Sons of Liberty game with some subtle alterations (including new infrared effects for the thermal goggles and a new set of dog tags), as well as... |
9 March 2007
02:53 GMT |
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