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Acer 4K monitor with NVIDIA G-Sync support

18.09.2014

Acer has begun shipping previously announced gaming monitors with support for NVIDIA G-Sync adaptive sync technology.

The XB270H model is not very interesting, although it supports a screen refresh rate of 144 Hz, but the XB280HK, although it has a refresh rate of only 60 Hz, boasts not only G-Sync support, but also a resolution of 3840x2160. The response time is stated at the level of one millisecond.

Among other features of the novelty, it is worth noting an ergonomic stand with wide possibilities for adjusting the height and angle of the screen, which is not so common these days among monitors aimed not at professionals, but at ordinary users. Even the portrait orientation of the panel is supported. For those who play or work in bright light, the Acer XB280HK is built with a ComfyView matte finish.

Bulk deliveries of the XB280HK and XB270H have already begun, monitors can be purchased for $600 for a model with a smaller diagonal and resolution, and $800 will have to be paid for a resolution of 3840x2160 bundled with NVIDIA G-Sync.

This monitor lacks only a higher quality matrix than TN, but then its price would be much higher. To connect to the gaming system, a DisplayPort 1.2 connector is used, but it is now found on any more or less modern graphics card.

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laser instead of diamond 05.12.2003

The Institute for Mechanics of Materials (Freiburg, Germany) has created an installation for cutting flat glass with a laser.

The usual method of cutting - with a diamond or carbide wheel, followed by breaking along a scratched line - is inaccurate and requires subsequent processing of the edges of the glass. In addition, this is a harmful production: fine glass dust flies into the air. The laser draws a thin "hot line" along the glass, along which internal stresses arise, and the glass breaks in this place. There is no dust, no chips, no microcracks.

Glass of different brands and different colors absorbs light in different ways, so you have to use different types of lasers.

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