Hanging Gardens of Babylon

When people speak of the Babylonian civilization, the first imagination and foremost is “hanging gardens.” It is known as one of the Eight Wonders of the world.

Hanging Gardens of Babylon, of course, have never been hung in the air, the origin of the name is simply because people have to replace the original addition to “hanging”,  and it is the result of  error transtlation of “outstanding” in the Greek meaning “kremastos” and the Latin “pensilis”.

Unfortunately, the Hanging Gardens and the Babylonian civilization, like the other famous buildings are already being lost in the billowing yellow sand. We must understand that Hanging Gardens, only by later generations of historical records and modern archaeological excavations.

But some records, although the reference to Hanging Gardens, but that the legendary Hanging Gardens is not built by Nebuchadnezzar II, but a Syrian king to please one of his favored concubines and deliberately construction of the. Some records even think that the legendary Hanging Gardens actually refers to the Assyrian king Cincinnati hrib capital Nineveh in its construction of the royal garden.

Hanging Gardens of Babylon of the most amazing places that the water supply system, because Babylon little rain, while the hanging gardens of sites that are far from the Euphrates River, so the researchers think that there should be a lot of Hanging Gardens of water as shown in Figure device, the slave constantly push the gear handle even the tight, the groundwater delivered to the highest level of the storage tank, and then return to the ground by the man-made river. Another challenge is to maintain, since the general building, to the erosion of the river and not long withstand the collapse is impossible, due to the Mesopotamian plain not too many stones, so The researchers believe that the bricks used in hanging gardens with a difference, they were joined by the reed, asphalt and tiles, stones have been added and more literature refers to a layer of lead, in order to prevent infiltration of ground water.

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New brain cells delete old memories

According to foreign media reports, the Japanese scientists on the 13th in the “cell” research articles published in the journal said, newborn brain cells can damage the brain hippocampus of the link between brain cells. Hippocampus is the brain and learning and memory related areas. Scientists say, clear the memory of the old brain can learn new knowledge and to provide “space.”

Japan’s Toyama University neuroscientist wellhead smoked and his colleagues use of radiation and other genetic methods, to prevent the formation of mouse brain neurons. These mice are placed in special cages, the scientists training their fear of a slight electric shock. Scientists found that these mice have to rely on recall of fear memories in hippocampus. The comparison group of mice, the formation of large neurons have not been blocked, they can “leapfrog” the hippocampus from the brain to get back on a long-term storage of fear memories. Researchers also found that, through a number of neurons contribute to the formation of the movement, memories of the old mice were removed from the hippocampus faster. However, Kaoru Iguchi said the findings did not mean that newborn neurons in the brain in forming new memories unnecessary.

Researchers also discussed the formation of neurons in learning and memory in the role. The hippocampus is an adult brain to form new neurons in one of two regions. Previous studies suggest that new neurons can be reinforcing “memory circuits.” But the Japanese scientists, new research has overturned this view, the new neurons to weaken or undermine the hippocampus with memory codes for the old link between the brain cells.

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