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On February, 14th 2015 I and my all class mates have to made a advertisement, noticed, or announcement. And I have make one! Like what? This is it 

 

I draw it with pencil and finishing  it with crayon  It’s interesting, doesn’t it?

That is a chocolate and a piece of chocolate. And  in that picture  there’s a letter : ‘SAVE OUR BRAIN WITH CHOCOLATE’. Why I choose chocolate? Because many scientist say that chocolate is good for stress solutions. Beside of the delicious tastes, the calories are good for us who if she/he is in depressed haven’t eat the calories will help recovery health immediately. But for us who have surplus with calories don’t eat chocolate too much or you can try low fat chocolate milkshake

So let’s save our brain with happiness from chocolate You will not in the badmood again trust me it works!

Natural Phenomena

My favorite phenomena is the biggest salts flat. It happens on Potosi Departement Oruro, Bolivia , on southeast near on top of Andes mountain at an altitude of 11,995 feet above sea level. this phenomena which is known as "Salar de Uyuni". This scenery is very beautiful. It is a natural large mirror.

The Salar was formed as a result of transformations between several prehistoric lakes.
The name of the prehistoric lake is Michin lake. When it getting dry finally become 2 lakes. That is Danau Poopó dan Uru Uru and two big salt desert Salar de Coipasa dan Salar de Uyuni It is covered by a few meters of salt crust, which has an extraordinary flatness with the average altitude variations within one meter over the entire area of the Salar. The crust serves as a source of salt and covers a pool of brine, which is exceptionally rich in lithium. It contains 50 to 70% of the world's lithium reserves, which is in the process of being extracted. The large area, clear skies, and the exceptional flatness of the surface make the Salar an ideal object for calibrating the altimeters of Earth observation satellites

 Salar de Uyuni in the afternoon

           

 It happens when a thin layer of water gather on the land which contains salt. Salar de Uyuni is called "heaven on earth" too. This natural phenomena which amazed me so much happens when a little flood makes people like walk on the sky. Overlay of flat salt measuring 6.500 miles is the biggest in the world. Even bigger than Titicaca lake.

Expanse of salt occurs in different areas such as lakes or ponds where the climate does not evaporate the water faster than the rate of precipitation, the results if the water can not flow will collect large amounts of water.

Although its dry, Salar de Uyuni show special phenomena likes natural wonders which is make it as live desert on mountains with average temperatures around 21C stable in the summer.

Many tourist come to this place for enjoy white expanse of salt and amazing scenery. When we stay with the local resident, the tourist can feel like connected from modern world. You just need around dis Rp.150,000/days, the tourist can spend night with farmer’s family in local residents without water or electricity. Even the bathroom is outside the house.

Even though tourist were already visited this place, around 5 years ago lithium is found just below the surface of the salt. Salar de Uyuni in addition to amazing also contains the highest concentration of lithium batteries are important for computer and phone in the world. Between 50 to 70 percent of the world's supply of precious metals contained in the area. In addition to the mineral wealth, Salar de Uyuni is also home to wildlife stunning pink flamingos.

Source :
http://unikasik-windu.blogspot.com/2012/06/salar-de-uyuni-fenomena-alam-cermin.html 
http://id.wikipedia.org/wiki/Salar_de_Uyuni 
https://www.youtube.com/watch?v=r2MOXksZ2UE