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ViewSonic VX52 Series Monitors

04.10.2013

ViewSonic has launched the VX2452mh and VX2252mh VX52 series monitors, designed primarily for gaming and multimedia content.

The panels feature proprietary technology ClearMotiv II, providing a response time of 2 ms. The devices correspond to the Full HD format: their resolution is 1920x1080 pixels. The contrast ratio is 1000:1 and the dynamic contrast ratio reaches 50:000.

The VX2252mh monitor has a diagonal of 21,5 inches. The brightness is 250 cd / m2, viewing angles - 178 degrees (vertically and horizontally). Diagonal model VX2452mh - 23,6 inches. The brightness is 300 cd/m2, the horizontal/vertical viewing angles are 170/160 degrees.

The panels are equipped with 2 W stereo speakers, D-Sub, HDMI and DVI-D connectors.

The VX2452mh and VX2252mh monitors will go on sale in mid-October at an estimated price of $180 and $160, respectively.

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Named the most powerful volcanic eruption in the last 7 millennia 27.06.2012

It seems that the mystery of the largest volcanic eruption in the last 7 thousand years has been solved. This event took place in the middle of the XIII century (presumably in 1258) and significantly "cooled" the planet for several years. However, the site of the eruption has not yet been known to experts. Now scientists have managed to unravel this “mystery”.

A team of French researchers from the Panthéon-Sorbonne University in Meudon, led by geophysicist Franck Lavigne, says that both the date and the location of the eruption have finally been established for sure. On June 14, at the Conference of the American Geophysical Union, Lavigne spoke about the results of his group's research and said that in fact the eruption occurred a year earlier, in 1257, but refused to decipher the place of the eruption until the appearance of an official publication in a refereed journal.

The very fact of the eruption is confirmed by many data: an increased amount of sulfur in the ice of Greenland and Antarctica, in tree rings, historical records, etc. The scientists' main "suspects" were the volcanoes El Chichon in Mexico and Quilotoa in the Ecuadorian Andes. However, Lavigne argues that it did not happen there at all - the chemical composition of the rocks in these places, he says, does not match the sulfur content in the ice cores of the time, carefully studied by his team. In the course of lengthy geochemical surveys, scientists discovered a volcano that chemically matches these cores, Lavigne even showed photographs of its caldera. According to the general "behind the scenes" opinion of the conference participants, he is somewhere in Indonesia, because Lavigne spoke too much about Indonesian volcanoes. However, in this country, according to the same Lavigne, there are about 130 active volcanoes, so it hardly makes sense to guess.

Among other things, Lavigne's team found new historical data that shifts the time of the eruption by a year and shows that climatic changes in the world occurred in the winter of 1257-1258. "We believe," says Lavigne, "that the eruption occurred either in the late spring or summer of 1257."

Computer simulations carried out by his group showed that pumice particles were thrown to a height of more than 40 km that year, eventually showering an area for tens of kilometers around. They estimate the magnitude of the eruption on an eight-point scale as the number 7.

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