| |
| |
|
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
Locusts To Help Make Energy From Bio Waste, part IV We are in a Plague year 2004-2005 where the locusts are swarming. No one knows how long this will last, but this problem could rage on for several more years. Cloaking a UAV in Flight If you will recall the Klingon Space Craft and Warship cloaked it's self as it attacked the USS Enterprise under Captain James T. Kirk. The Debate About Cloning There are two types of cloning. One involves harvesting stem cells from embryos ("therapeutic cloning"). 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. Paper - More than Meets the Eye We are surrounded by so much paper and card that it is easy to forget just how complex it is. There are many varieties and grades of paper materials, and whilst it is fairly easy to spot the varieties, it is far more difficult to spot the grades. Dream Therapy and Learning thru Human Hibernation Want to learn a new language? Would you like to earn a PhD in Physics; perfect your backstroke tennis swing, golf finesse or fly-fishing techniques, while you sleep? While, your immune system catches your body back up on your lack of exercise, fitness and proper diet? How about if I told you, that you most likely will shed about 20-25 lbs of extra weight while all this is going on? Well, if we further develop our sleep research, human hibernation studies and mind or brain advances we will be able to do all this and more in the near future, perhaps less than 5-years.Let me tell you about a few of the latest new rapidly approaching and potentially converging technologies, which will make all this possible. Rodent Populations are Half within 3 miles of a Railroad Track About a month ago, I was helping a friend collect meteorites. We picked out a grid pattern and started walking six to 9 feet apart with metal detectors looking for the iron-nickel meteorites which are quite common here on the Earth's surface The grid is large and takes many days to even make a dent in it and each time we are able to collect some meteorites. Launching 400 UAVs from a Transport Plane How to launch hundreds of UAVs for an autonomous mission from a transport plane. As we watched the MOAB parachute bomb drop out of a C-130 onto the desert and above the tunnels below into Afghanistan, it left the world in awe. Mars Surface Exploration and AFF As we study more and more about Mars we know there is life. Unfortunately in many regions of the planet it is not so evident. Bees Wax; History and Origin We have often been asked where wax comes from? Well there are many types of Waxes. Bees wax has been around for a while. Pre-empt the Radiation or Die At West Point, in a speech, President George W. Bush shared the doctrine of pre-emption with his cadets that he articulated as a countermeasure to September 11 attacks. Living In Arizona Boulders--Where Did They Come From? When most people think of building a secluded home, they think of tall trees and large bushes. But what about boulders?Granite Park, located in Prescott, Arizona, which is in the north central part of the state, is one such place filled with 1. Theoretically is it Possible to Defy Gravity? Many believe it is possible to build an anti-gravity machines and there are many small version which can do this by interfering with the gravity waves. Other say why build an anti-gravity wave machine when you can use the gravity to pull you the other way. Precognition Shock to Prevent Bullet Strike It is a pretty well known fact and has been proven that the body seems to pre-adjust to changes in advance of events by a second or two. For instance there have been studies of test subjects with finger sensors, which would show the subjects pulse or adrenaline spiked right before they were to be shocked. A Call for a Worldwide Campaign on Water Conservation If we are to tackle the challenges of future populations on the planet, we will need to insure adequate water supply. Our US population is growing, by one person every nine seconds and with this growth the consumption of fresh water increases. Using Mosquito MEMS to Collect DNA Samples Soon scientists will have scaled down robotic insects. This is a good thing and most of this technology is being funded for Department of Defense uses as they will have a killer application there indeed. UAV Mini - Torpedo Bombers for Eliminating Hydro Cushioned Water Craft UAVs can carry cargo, some of the very tiny UAV units can hold up to 11 lbs. Which is not much, however. Why Can't Our Brain Process What We See Faster? Many who admire the excellent design of Mother Nature and the gift of vision and the enhancements thru evolution wonder; Why Can't Our Brain Process What We See Faster? A paper by G. Bugmann and J. Locusts To Help Make Energy From Bio Waste, part I Plagues of Locusts through out history are well documented. In fact they are even documented back as far as the times of the ancient Egyptian pharaohs. Brain Waves Activating to the Tune of a Different Drummer? Well, here is a most interesting thought. There are many who have heart murmurs from birth and many with heart murmurs, which are not negative from a health standpoint.
|
| home | site map | Xray Photography |
| © 2006 |
