Model train layout in the world's largest in Hamburg, Germany. Cool gan. Created by two brothers Frederick and Gerrit Braun, called "Miniature Wunderl



The area



















Mountains

When you see a strange circle on the surface of the river, do not rush to conclude that the UFO had just landed in river. Maybe what you see is the Ice Circle newly formed.

Ice Circle or the circle of ice is a phenomenon that appears in the water that flows slowly in a cold climate. The shape resembles a giant dish which consists of ice and rotates slowly on the surface of the water.

This mystery has really been mentioned in the 19th century. An illustration of the Ice Circle magazine has been published in Scientific American in 1895. London News also reported this phenomenon is happening in Toronto in 1930.

Generally, this phenomenon appeared in Scandinavia and North America, but never one time seen in the UK in January 2009.

Circle Ice generally appear on the curve of the river where water flow is accelerated to create a force called "rotational shear", which then broke the ice and play.

In line with the rotation of the disc, he grinding ice around so that a smooth and form a perfect circle. This phenomenon has been identified although the cause, but it remains a rare occurrence.

Here are some examples of the beautiful ice circle:

Cube, dice is a sixth object side in the form marked tiitk ranging from one to six points. If noted, the point - the point in two opposite field always numbered 7. For example point 1 is paired with 6 points, three points paired with 4 points, and 2 pairs tiitk with 5 points. That is the dice that kept the laws of probability mathematics.

Allegedly, dice cube with a similar practical pendandaan modern adadu been around since the year 600 BC, even in 2000 BC, based on evidence in the form of a cube that was found during the excavation of the tomb in China and Egypt. While in India, since more than 2000 years ago, there have been the first written record of the dice in speaking Sanskrit epic, the Mahabharata.

According to Sophocles (495-406 BC), dice ditemkan by a Greek invasion of Troy while. while Herodotus (484 to 425 BC) argued, the nation Lydia - an ancient kingdom in western Asia Minor in the reign of King atys - as the originator of the idea of making the dice. But two archaeologists rejected that opinion. According meraka invention, the die was in use at the beginning peradabanlebih. Included in that group is the North American Indians, Aztecs and Maya. Island communities around the Pacific, Eskimo and Africa. they have a game with a dice of various materials, shapes and strange way of labeling.

Dice - dice was derived from seed plum and peach body, seeds, bones of deer and oxen, deer antlers walnut husks, marble, ceramics, and beaver teeth and moles.

In the next civilization in Greece and Romaw, although umumnys dice made from bone and ivory, there is bermterikan bronze, and the various rocks from marble, agate, crystal oniks, porcelain, etc.. would not only shape but also pyramid cube, penthahedral, and octahedral with some surface variations.

In primitive societies the original dice tool to predict the future. typically, made of sheep ankle bones are marked in the four fields.

Then, dice so old plaything. any type of game many and varied. One group of people who like games with dice is the ancient Romans. It was shown in the drawings the wall of a tavern in Pompeli about some people who were playing dice. Pompeli city buried by the eruption of Mount Vesuvius in 79 years. The Romans called it tesserae cubes.

They also have a dice marked on four sides, called a rope. Some tesserae found at Herculaneum. In the play, the outcome in unpredictable dice, but nobody tried to arrange it fraudulently, Dadu "cheating" is never found in tombs in ancient Egypt. East Asia, and the funeral of North and South America.

Dice was a cube made with sliced imperfect one or more fields so that the shape is more like the smell of brick. Alhasi, the dice will land on the surface often broader, and the numbers in reverse is often out. This technique is often used. Another way is to give extra weight just below the surface of one of the fields. As a result, instead of going more often.

Along the way, cube-shaped kubuslah ever used so far, even spread to different parts of the earth. Dice today are usually of plastic. there are two kinds, perfect and imperfect. the perfect type most often used in the casino. In elbow perfect dice meeting line of two sharp sides, any size should be appropriate. An acceptable tolerance of the standard size is 0.0013 cm!

While not perfect dice most played daily, such as checkers or Snakes and ladders. These dice have a meeting line and obtuse angles. When the dice sempurnadibuat by hand, it is not perfect cubes made with the machine.