Jumat, 28 Februari 2014

Swarovski Kristallwelten


Swarovski Kristallwelten, Austria


The Giant waterspout at the entrance of Swarovski Kristallwelten was launched at 1995 In Commemoration of the 100th Anniversary of Swarovski. The Swarovski Crystal Worlds /  Visitor Center /Swarovski Kristallwelten Museum -  is a tourist attraction at Wattens (The Swarovski company is Wattens’ main employer), located about 10km from Innsbruck,  Austria.
The Visitor Center has some fascinating & dynamic exhibitions made of crystal, The entrance to the park through a water spouting giant’s head covered with vegetation and a part of a hill, with big sparkling Crystal eyes and a mouth, which is actually a water fountain.

Sabtu, 15 Februari 2014

Natural Phenomenom - Brinicles



A brinicle (brine icicle, also known as ice stalactite) forms beneath sea when a flow of extremely cold, saline water is introduced to an area of ocean water, being the undersea equivalent of a hollow stalastite or icicle
Known since the 1960s, the generally accepted model of their formation was proposed by the US oceanographer Seelye Martin in 1974.[1] The formation of a brinicle was first filmed in 2011 by producer Kathryn Jeffs and cameramen Hugh Miller and Doug Anderson for the BBC series Frozen Planet.

At the time of its creation, a brinicle resembles a pipe of ice reaching down from the underside of a layer of sea ice. Inside the pipe is the supercold, supersaline water being produced by the growth of the sea ice above, accumulated through brine channels. At first, a brinicle is very fragile; its walls are thin and it is largely the constant flow of colder brine that sustains its growth and hinders its melt that would be caused by the contact with the less cold surrounding water. However, as ice accumulates and becomes thicker, the brinicle becomes more stable.
A brinicle can, under the proper conditions, reach down to the seafloor. To do so, the flow of supercold brine from the icepack overhead must continue, the surrounding water must be significantly less saline than the brine, the water cannot be very deep, the overhead sea ice pack must be still, and currents in the area must be minimal or still. If the surrounding water is too saline, its freezing point will be too low to create a significant amount of ice around the brine plume. If the water is too deep, the brinicle is likely to break free under its own weight before reaching the seafloor. If the icepack is mobile or currents too strong, strain will break the brinicle.
Under the right conditions, including favorable ocean floor topography, a brine pool may be created. However, unlike brine pools created by cold seeps, brinicle brine pools are likely to be very transient as the brine supply will eventually cease.
On reaching the seafloor, it will continue to accumulate ice as surrounding water freezes. The brine will travel along the seafloor in a down-slope direction until it reaches the lowest possible point, where it will pool. Any bottom-dwelling sea creatures, such as starfish or sea urchins can be caught in this expanding web of ice and be trapped, ultimately freezing to death.

The formation of ice from salt water produces marked changes in the composition of the unfrozen water. When water freezes, most impurities are forced out of solution; even ice from seawater is relatively fresh compared with the seawater it is formed from. As a result of forcing the impurities out, sea ice is very porous and spongelike, quite different from the solid ice produced when fresh water freezes.
As the seawater freezes and salt is forced out of the pure ice crystal lattice, the surrounding water becomes more saline. This lowers its freezing temperature and increases itsdensity. The lower freezing temperature means that the surrounding water does not freeze to the ice immediately, and the higher density means that it sinks. Thus tiny tunnels called brine channels are created all through the ice as this supersaline, supercooled water sinks away from the frozen pure water. The stage is now set for the creation of a brinicle.
As this supercooled saline water reaches unfrozen seawater below the ice, it will cause the creation of additional ice. If the brine channels are relatively evenly distributed, the ice pack grows downward evenly. However, if brine channels are concentrated in one small area, the downward flow of the cold water, now so saline that it cannot freeze at its normal freezing point, begins to interact with unfrozen seawater as a flow. Just as hot air from a fire rises as a plume, this cold water descends as a plume. Its outer edges begin to accumulate a layer of ice as the surrounding water, cooled by this jet to below its freezing point, ices up. This is a brinicle: an inverted "chimney" of ice enclosing a downward flow of this supercold, supersaline water.
When the brinicle becomes thick enough, it becomes self-sustaining. As ice accumulates around the down-flowing cold jet, it forms an insulating layer that prevents the cold, saline water from diffusing and warming. As a result, the ice jacket surrounding the jet grows downward with the flow. It is like an icicle turned inside-out; rather than cold air freezing liquid water into layers, down-rushing cold water is freezing the surrounding water, enabling it to descend even deeper. As it does, it creates more ice, and the brinicle grows longer.
A brinicle is limited in size by the depth of the water, the growth of the overlying sea ice fueling its flow, and the surrounding water itself. In 2011, brinicle formation was filmed for the first time.

Reference http://en.wikipedia.org/wiki/Brinicle

Jumat, 14 Februari 2014

Summary & Moral Value from The Legend of Tangkuban Perahu

Summary
After killed his father, Dayang sumbi hit Sangkuriang heads and Sangkuriang ran away to the forest and never go back to his mother. As time goes by Dayang Sumbi met a handsome man and felt in love with him. Dayang Sumbi didnt relize that he was sangkuriang, and yes he was her own son. So when Sangkuriang ask her to married. Dayang Sumbi made a deal that she will marry him if he could make a lake with an ark.

Moral Value
The moral value of the story which has been written in my blog ( The Legend of Thangkuban Perahu ) is think before act, no matter what happened you always have to be a honest person. Because everytime you lie, you will continue to lie to cover up your lies.

SCHOOL ANNOUNCEMENT

To : All Students of SMAN 3 Bandung

There will be held singging competition in school hall at 8.00 until 10.00 at 20th of February.
You can choose your favorite song.
If you interest to follow this competition please register in your teachers.
The registration will be opened from 17th of February until 19th of February.
Do your best on this competition.
And please don't be late.

For more Information,
contact your teachers.