| |
| |
|
Science Information |
|
|
|
Travertine Information
Travertine is a compacted form of limestone that forms in rivers and hot springs. Water, especially river water, has a lot of minerals in it. Sometimes these minerals become deposited on the river bed. These wet minerals then dry out, and combine in compositions at the chemical level. When the minerals deposited are calcium and carbon, sometimes they form a stone that is known as travertine. The chemical composition of travertine is CaCO3 which means that there is one part calcium for every three. Travertine is known for having bands of vibrant color running through it. This is caused by chemicals becoming caught in this structure of the stone as it forms, usually iron... These colors often appear as bands or lines in the face of the stone. The variations in the stone are numerous and it comes in a huge number of colors. The other common names for these stones are calcareous Tufa, and occasionally onyx. It can be solid or semi transparent. It is most often used in floors or counter tops due to its hard surface, ease of cleaning, and beautiful colors. It is also used in many home furnishings and out door applications. Certain chemicals are often used on the stone to seal it from gaining dirt deposits. These chemicals also tend to bring out the color in the stone. These chemicals are known as sealers or finishers. A slightly less effective way to treat travertine is to use olive oil to finish its surface. This was historically a very important stone for ancient architecture. Travertine today can be quarried in turkey, china, the U.S. and europe. About The Author Joey Lewitin is an author and runs a website called http://pebblez.com where he sells his unique home decor gifts
MORE RESOURCES:
Science - Google News |
 |
|
|
RELATED ARTICLES
Building a Single Unit CO2 Laser Grid When using a CO2 Laser to shoot down an incoming projectile, which enters a safety zone, it will be necessary to hold the laser on the target for about 5 seconds or more. To do this we must be able to shoot the laser in a grid, therefore if the projectile or aircraft or guided missile or even a UAV takes evasive action such as a high- speed high "G" 90 degree turn you can still register a kill on the target. UAV Acoustic Apparatus for Insect Swarming Stimulus, part two UAV Acoustic Apparatus for Insect Swarming Stimulus, part two; Using Locust swarms to attack our enemies using directional sound to guide them.These plagues and swarms seem to occur randomly, although we do know the migrations are due to over population in an area. Spray on Dirt for Camouflage Super sticky spray on dirt or mud simulation coating or wash-off-able paint is needed to protect our troops in combat. It can be used for aircraft bottoms, helicopters and humvees. Tunneling Concepts for Advanced Warfare I propose research be done to make unmanned tunneling machines to help in warfare. Today more than ever we see the problems with urban warfare. Drought Worsened in Some States in 2004; 2005 will be very telling The drought of the West appears to be the worst in over 500 years. This is what the scientists at the U. Aerospace Design Thoughts, The Bionic Man, and The Future of Design Not all aircraft have wings, for instance NASA's Steve Austin Bionic Man series style lifting bodies. Introduction to this thought process can be provided by a quick view of this site;http://www. A Case for Human Machine Visual Interface Animation of personified reality is intriguing, memorable and interesting as well. Perhaps we ought to remember this when letting kids watch cartoons of attacking counter parts? Or maybe this is a good way to help them better understand the Machiavellian characteristics of the species before they enter the real world, where everything is not so warm and fuzzy. The Fall and Fall of the p-Zine http://home.wuliweb. Droughts and Salt Water Canals Random Thoughts We need solutions to our drought crisis in this country. There are simple but expensive solutions; for instance; Desalination, salt water rivers and conservation strategies. Creation CREATION OF ANIMATE FROM INANIMATE: - We have touched upon some scientific dry wells and frauds already. The idea of cold fusion and perpetual motion that the Utah researchers may not have achieved was just dealt with: but a recent report showing a Utah student using Farnsworth's old designs is another example that makes me think Cold Fusion is going to be a reality. Tsunami warnings by 2006 Experts from the United Nations and Indian Ocean countries agreed to set up a tsunami warning system to prevent a repeat of the catastrophe that struck on December 26, Unesco said.A fully functioning system that detects undersea earthquakes and broadcasts warnings to coastal communities is expected to be in place by the end of 2006, said Patricio Bernal, executive secretary of Unesco's Intergovernmental Oceanographic Commission, on Tuesday. The Ecology of Environmentalism The concept of "nature" is a romantic invention. It was spun by the likes of Jean-Jacques Rousseau in the 18th century as a confabulated utopian contrast to the dystopia of urbanization and materialism. Issues with Aerial Fire Fighting A few years ago I visited the Wyoming Contractor, which used WWII aircraft to fight such fires. I was amazed that such old aircraft were not in museums but rather in flying condition and used for dropping phoschek on fires. What is Dowsing? Dowsing is definitely an intuitive art and one of the oldest forms of divination in the world. Perhaps the oldest and most familiar image we have a dowser is what is called a field or map dowser. Underground Cities, Save the Humans Perhaps we should design tunneling robots, which can dig out an underground city. Unmanned Tunneling robots to build underground cookie cutter cities to save mankind from possible future calamity. Organic Decoy Devices for Warfare (ODDW) We can genetically modify a rat to be the same body temperature as a humans, then parachute in several thousand rats into enemy territory. These rats will pick up the enemies advanced warning and intrusion sensors by way of heat signature. Equipment for the Amateur Astronomer - Part 1 Binoculars and telescopes and other astronomy equipment and accessories are the meat and potatoes of amateur astronomy. A good pair of binoculars is what introduced me to the pleasures of stargazing many moons ago and only after a couple of years scanning the skies did I graduate to a telescope. DNA Testing Has Changed Everything Since its discovery 20 years ago, the use of DNA for human identity and relationship testing has emerged as a powerful tool in both civil and criminal justice systems. DNA testing can reveal whether two or more individuals are related as well as determining the nature of their relationship. The Best and Worst of April's Weather If Johannes Kepler, the renowned 17th century astronomer and discoverer of the planetary laws of motion, could speak from the heavenlies, he might have a few words of wisdom to share with the National Weather Service. Although Kepler's name is not normally associated with meteorology, he was quite the weather forecaster in his day. Army Mobile Command Center for UAV Launch After visiting the Denver RC Modeler Club one day as they practiced for the national finals in PHX that year, we attempted a touch and go landing on our Blitz Mobile, which is a 74 foot long NASCAR type truck and trailer. Probably nothing more than a Fighter Pilots son from the cold war wanting to re-invent the aircraft carrier concept on a almost nano scale? We were successful on doing a touch and bounce on the top of the trailer without too much difficulty.
|
| home | site map |
| © 2007 |
