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Sci Facts

Emerald

June 27th 2009 16:32

Emerald is a variety of Beryl crystal which is found in various places around the world. However it is rare to get and an emerald out of the Beryl mines and this is the reason that this green shiny gemstone is considered to be one of the precious stones.

Emerald are deemed to be the most precious stones by many people and experts around the world. Although the bulk of diamond wound be expensive as compared to emerald when weighed carats. However emerald can get precious beyond imagination. This is because emerald are already rare and most of the emerald have inclusion with in them.


It is extremely hard to find a flawless emerald and if found it value can surpass even the most expensive diamonds around the world. This is the fact that makes many feel emeralds are precious than diamonds. And some times such flawless emeralds can even make an expert say "priceless".

Emerald are very brittle and soft crystals. They can break very easily and can be scratched. They are also not very resistant to heat. This is the reason that extra care is taken in the manufacturing of emerald studded jewelry and the repairing and polishing of such jewelry is also costly.



Emeralds' value can be determined using the standard 4C method used to evaluate most of the gemstones. However many gemstones unlike diamond do not follow strictly thye 4C method of evaluation. Color and Clarity are the main things that are checked when finding out the value of an emerald.


Like is said emeralds, naturally have fractures and inclusion with in them and absolutely clear emeralds are very rare and valuable. However sometimes you may find emerald with inclusions expensive as it gurantees the gemstone to be natural. This thing is valid if it has a good color.

The best cut emeralds are known to be rectangular shape. This shape is sometimes called emerald shape when other gemstones are cut out in this shape. Emeralds are certainly precious and it is always advised that you get some experienced person with you if you are out to buy a genuine emerald.

For More Information On Emerald Read More Over Here
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Traces Of Cocaine In Red Bull

June 7th 2009 19:48

Red Bull is one of the most renowned energy drink and is also one of the most consumed one. People not know it for its qualities but rather it is more famous with its brand name. In many countries drinking Red Bull is not just for having a energy boost rather its is more now a status symbol to have energy drinks most notably Red Bull.

Many people unnecessarily consume many Red Bull cans during the whole day just to appear cool and the general principle that anything in taken in large quantities is never good for health, is valid with this drink also. Recently a greater concern has made authorities worry about this even more and that concern is the traces of cocaine discovered in Red Bull Cola.

This was not worldwide and was claimed by authorities in Hong Kong after discovering that there was some 0.1 to 0.3 micrograms of cocaine found in this drink. This won't do much but slowly make you addicted to there drink and you would die to drink Red Bull or may be die drinking Red Bull.

Although there hasn't been any news of any discovery of cocaine in Red Bull consumed in other countries, but there is no telling. Recently, in Asia there has been quite a lot hazardous substances found in products of famous brands. Some of this products are actually fake and still there in major super markets, while some actually belong to the original brand and found to have contain something harmful.

Recently harmful substance were also found in Jhonsons baby shampoo in China and now this in Hong Kong. So its has really been a concern these days as to what hazardous things you are unknowingly consuming using day day to products.

The authorities in Hong Kong pulled out Red Bull out of super market shelved, where as the brand it self denied this allegation, but who knows what truth is behind this news.
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14k and 18k White Gold

May 11th 2009 07:26


Gold is one if the most precious metals that have been discovered. Although there are many other elements that are much expensive than gold of which Platinum is a well known one but the unique features that gold has is like in no other metal on earth.

Gold is precious because of its eye sparkling golden shine. The unique golden color is what makes gold, gold. Gold is not just unique because of its appearance but there are many physical properties because of which it is the prime metal for jewelry items.

Gold is the most ductile and malleable metal to exist. It is so malleable that even translucent sheets can be drawn out of this unique substance. Gold has been the choice for ornaments and jewelry items right from the time it was discovered. People started to use it as coins in currency and invented methods to make jewelry out of the metal.

The art of making jewelry is quite old and gold and the love of gold in a woman's heart is also that old. Not just woman, but men also find attraction in this unique metal. Gold is very soft in pure form so it is alloyed with copper,silver,nickel or palladium to give rise to 22k,21k,18k,14k etc of gold.



These typed of gold alloys are actually added when proper ratios of alloy metal is added to pure gold. Pure gold is considered to be 24k in this ratio system. The alloying of gold not just makes it hard, but it also allows the goldsmith to change the color of the gold item.

That is how White gold is formed. If we add nickel or palladium in the ratio of 18/24 for 18k gold and 14/24 for 14k gold, the alloy metals give their whitish color to the pure yellow color of gold. Although the gold appears almost whitish yet we require rhodium plating after finishing since the polished ornaments will have a yellowish shade.

The adding of impurity actually decreases the amount of gold in a certain weight of some karate of gold. This is why 14k or 18k gold is cheaper that other gold. This was some introduction to white gold the link below will take you to the details about gold and white gold.

You Can Find All About White Gold and Its Handling In This Page
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Teleportation

May 5th 2009 16:33

Teleportation means transfer of body from one point to another such that the body makes this transfer at the blink of an eye. The real thing about teleportation which makes it unique is that when a certain body travels the teleported distance, it does so with out the need of any external medium or means of transport.

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Types Of Flowers

April 16th 2009 19:56
A Rose


Nature is full of beauty and there are simply so many things that are magnificent in the world. Endless sceneries and items are there that we can see and touch and feel the power and beauty of this nature


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A Female Vampire Found In Venice

March 21st 2009 18:03
Courtesy-Dawn.com


Vampire culture has always been popular in all sorts of media. Every since Europe plunged into dark ages, many different superstitions and witchcraft stories started to emerge in the lives of common people. Most of these stories are really strange and some of them became so popular that they still haunt the minds of not just Europeans but many people around the world


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Types Of Dams

February 21st 2009 18:05

Dams are one of the greatest inventions of mankind. It won't be wrong to say that many of the countries' economies and sustainability depends on the dams in those countries. Dams are very important as they not only are a source of water but also save people from flooding and the most important thing is that they provide us with a very cheap source of producing electricity.

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How To Make A Lemon Battery

February 5th 2009 10:33

A Battery is a actually a small voltaic cell packaged in certain metallic container to provide electric potential. Batteries are our day to day need and with out them we cannot run our cars,motorcycles,appliance,mo biles,generators etc. In other words they are an important source of energy in our lives. Now this energy which battery provided, doesn't come from any magic rather there is a little chemistry going on with in the battery packaging.

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Worlds Deadliest Poison

January 25th 2009 17:40

Poison is a substance that can cause any disturbances in the normal operation of a body if they are allowed passage. This passage into the body can be of any type. It can be taken from mouth,it can be inhaled or it may even effect any one if touched.

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January 24th 2009 21:22