“Approximate locations of 153 houses of prostitution, circa 1870, as catalogued by “The Gentleman’s Directory“
haritalama için sınırları zorlayabilirsiniz. daha fazlası...
Wednesday, November 30, 2011
mosder
| MOSDER 7. ULUSAL EV MOBİLYALARI TASARIM YARIŞMASI'NDA ÜRETİLEN TASARIMLAR SERGİLENİYOR, TASARIMCILAR ÖDÜLLENDİRİLİYOR Türkiye Mobilya Sanayicileri Derneği'nin düzenlediği 7. Ulusal Ev Mobilyaları Tasarım Yarışması sonuçlandı. Üretilebilir eserler belirlendi. prototipleri sergilenmek üzere üretildi. Ödül Töreni ve Sergi 13-15 Aralık 2011 tarihleri arasında olacak. Türkiye'nin tasarımdaki gücüne tanıklık etmeniz için sizi de aramızda görmek istiyoruz. | ||||||||||
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Tuesday, November 29, 2011
Monday, November 28, 2011
glass coloring
Ordinary soda-lime glass appears colourless to the naked eye when it is thin, although iron oxide impurities produce a green tint which can be viewed in thick pieces or with the aid of scientific instruments. Further metals and metal oxides can be added to glass during its manufacture to change its color which can enhance its aesthetic appeal.
Uranium (0.1 to 2%) can be added to give glass a fluorescent yellow or green color.[7] Uranium glass is typically not radioactive enough to be dangerous, but if ground into a powder, such as by polishing with sandpaper, and inhaled, it can be carcinogenic. When used with lead glass with very high proportion of lead, produces a deep red color.
Uranium (0.1 to 2%) can be added to give glass a fluorescent yellow or green color.[7] Uranium glass is typically not radioactive enough to be dangerous, but if ground into a powder, such as by polishing with sandpaper, and inhaled, it can be carcinogenic. When used with lead glass with very high proportion of lead, produces a deep red color.
how to color glass
The color is glass can bring much beauty to a glass object. Knowing how to color glass can give your glass projects lots of personality and uniqueness.
Ancient glass makers had no control as to what color the glass would be. The methods of how to color glass where through experiments that early glass makers made by adding other minerals to the glass mixture.
Experts in coloring glass resided in Egypt and Rome, giving us the wide spectrum of different color options for glass.
Before complicated stained glasses found in Churches, the first glass pieces made with color where simple bottles and cups.
Later on the stained glass windows become very popular and where placed in Church windows with designs according to the religion.
However, during those times despite having discovered how to color glass, they still had to figure how to make the color last. Sun exposure and other materials would make the color in the glass fade and change with time.
Now modern technology can easily color glass and make the color last as well. To color glass all you need is the right minerals in the glass making mixture.
Why Glass?
Why Glass?
Here are a few more reasons why glass is better than plastic for the environment and for you:
- Roughly 2.7 million tons of plastic are used each year worldwide for disposable drinking bottles. Less than 1% of all plastic is recycled, meaning 99% of plastics are incinerated or end up in a landfill.
- Americans buy an estimated 29.8 billion plastic water bottles every year, and nearly 8 out of every 10 bottles will end up in a landfill. Once there, it takes over 500 years for plastic bottles to break down.
- It is estimated that the production of plastics accounts for 4% of the energy consumption in the United States. Plastic is bad for our Earth, and uses up valuable resources!
- Glass is the only packaging material generally regarded as safe by the U.S. Food & Drug Administration. Glass is made from all-natural, sustainable raw materials, is 100% recyclable, and can be recycled endlessly with no loss in quality or purity.
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- Glass, unlike some plastic bottles, does not contain any harmful chemicals such as BPA, phthalate, PVC, or polycarbonate, so nothing can leach into your water from a glass bottle.
- Plastics made from polycarbonate resin can leach bisphenol-A (BPA), a strong endocrine disrupter, into its contents. Studies suggest that BPA may negatively affect reproductive organs, such as the breasts and prostate, as well as causing potential heart problems.
- You can save money and Earth’s resources by utilizing an eco-friendly, reusable, recyclable glass water bottle.
- Glass is taste-neutral, so no plastic or metallic taste will affect your beverage. Try our taste-test challenge: Sample various beverages from glass and plastic and let us know what you find out!
- You can safely refill your glass bottle as much as you want, and drinking the recommended daily intake of water means a healthier you.
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Imagine a better planet and a better you with My Own Bottle!
Sunday, November 27, 2011
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