24 May, 2011
Coin Collection - How to Collect Pioneer or Private Gold
The first discoveries of gold in the United States were not in California, as you may have guessed, but in North Carolina and Georgia. Local private minters turned this gold into coins to help alleviate the need for money in the region, especially because most of the output of gold coins from the U.S. Mint was melted for its bullion value as soon as the coins hit the streets.
When gold was discovered in California, new problems arose. Because California was so far removed from the ...
Continue reading ‘’ »
Category: Hobbies
20 May, 2011
Millesimal fineness - prototype circuit boards - China printed circuit assemblies
Millesimal fineness is a system of denoting the purity of platinum, gold and silver alloys by parts per thousand of pure metal by mass in the alloy. For example, an alloy containing 75% gold is denoted as "750". Many European countries use the percentage hallmark stamps (i.e. '585', '750', etc) rather than '14K', '18K', etc., which is used in the United States. It is an extension of the older carat (karat in North American spelling) system of denoting the purity of gold by fractions ...
Continue reading ‘’ »
Category: Business
16 May, 2011
Sterling Silver Jewelry ExposedSterling silver jewelry is enjoying an unprecedented popularity
with today's fashion conscious public. You know how beautiful
sterling silver jewelry is and how brilliantly it shines. Now
here is the rest of the story.
Silver has been used since ancient times, but has not survived
as well as ancient gold because it tarnishes and decomposes.
There have been times, however, when silver was 'in'; we are
going through such a vogue today.
Silver is the commonest of the precious metals. Fine silver ...
Continue reading ‘’ »
Category: News and Society
15 May, 2011
Investment casting brittle, reactive materials
Investment casting is a process for forming articles, often referred to as castings, from metals and alloys. Molten metals or alloys are poured into shells having an internal cavity shaped in the form of a desired article and allowed to solidify into castings. The shell is formed by serially applying layers of materials, such as ceramics, on wax or polymeric "patterns" formed in the shape of the desired article. The innermost layer of the shell, i.e., the first layer deposited on the ...
Continue reading ‘’ »
Category: Computers
6 May, 2011
Invest, Trade and Buy Gold Bullion and Coins
The time for gold is now. Although gold had been recognized as a very important metal for as long as we can remember, its essence had expanded to investments and trades. Companies and individuals of today buy gold bullion and coins in answer to the call for gold. The number of investing groups and individuals had risen dramatically over the past few years. This may be attributed to the fact that despite the current economic status of a nation, company, or individual there is no ...
Continue reading ‘’ »
Category: Finance
3 May, 2011
Nishihara Zou day light: the unique advantages of the Chinese PV industry - Motor Controller System
PV is an absolutely clean process, and wind energy, bio-energy of these renewable resources, compared to PV industry should be preferred. Cost is also pursued by many companies, photovoltaic industry is facing a very important issue is that no industry can sustain long-term government subsidies, whether the system is a rapid decline in the cost of photovoltaic industry is facing a major issue. In addition, the reliability of the PV industry is also essential.
Trina Solar, ...
Continue reading ‘’ »
Category: Business
27 April, 2011
How To Purchase Gold Bullion - Learn The Secrets Now
You may have probably seen people especially the rich in possession of gold bars in movies. You may have even wondered why there is a need for anyone to keep such bulky pieces when money can be deposited in many forms including electronically. Stumbling upon articles all over the internet providing instructions on how to purchase gold bullion will certainly have you asking more questions. To begin with, what is gold bullion is the first question which needs to be answered. Gold bars ...
Continue reading ‘’ »
Category: Finance
25 April, 2011
Buying Sterling Silver Jewelry Without Being Ripped-OffBuying sterling silver jewelry can be fun, exciting and
confusing. Whether you're considering a gift of sterling silver
jewelry for someone special or as a treat for yourself, take
some time to learn the terms used in the industry. Here's some
information to help you get the best quality sterling silver
jewelry for your money, whether you're shopping in a traditional
brick and mortar store or online.
Sterling silver jewelry is enjoying an unprecedented popularity
with today's fashion conscious ...
Continue reading ‘’ »
Category: News and Society
24 April, 2011
Ultrapure Water for Maximum Efficiency of Solar Cells
Ultrapure water in solar cell productionLarge quantities of ultra-high quality ultrapure water are required in solar cell production. It is used to clean raw wafers after they are cut from the silicon ingots, after surface texturing, before phosphor diffusion and coating, and during construction of the cells themselves.The quality of the ultrapure water in the distribution system and after production is monitored in-line using high-precision conductivity measurements and TOC ...
Continue reading ‘’ »
Category: Business
22 April, 2011
Enhance Fashion with Silver Fashion is not about being safe, no. It is about having fun
with style. We think silver is the perfect compliment to your
wardrobe's style. Yes, a great way for even the most
conservative to move safely into the unsafe style zone! Silver
pieces hold their style and a zany piece can be forever trendy.
Silver jewelry accessories are used as a form of an individual's
personal expression and fashion art. When thinking of personal
expression styles we tend to look at clothing, hair styling, ...
Continue reading ‘’ »
Category: News and Society