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Device for contactless identification by fingerprint

16.01.2006

Mitsubishi Electric has released a device called Finger Transmission Authentication Device, designed for fingerprint identification.

The novelty is designed using the company's own development, which provides identification without direct contact with the surface of the finger (it is alleged that the development of Mitsubishi specialists is the world's first device of this kind). The method used in the design is based on taking into account the amount of light passing through the tissues of the finger. As a result, the new scanner can verify the authenticity of a fingerprint no matter how dry or wet the skin is (remember, wet skin makes it difficult for traditional biometric sensors to work).

The device will be available in two versions: DT-TP and OPG-TP. The DT-TP variant is designed for use in devices such as safes or cabinets, since all its components, including the processor and memory, are enclosed in a compact housing.

The OPG-TP variant is focused on use in "gates" when it is necessary to control the exit or entrance from the premises, restrict access to a certain area, at checkpoints, etc. Deliveries of this variant are due to begin on January 4, 2006. The price of the DT-TP has not yet been determined, while the OPG-TP will retail for $4450 and up, depending on system configuration.

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Jellyfish of the ancient seas 14.04.2002

In a quarry in Wisconsin (USA), where sandstone is mined, thousands of jellyfish prints were found. Some of them are more than half a meter in diameter. Such soft-bodied and ephemeral animals as jellyfish almost never leave a trace in the fossil record (this is only the second largest find of jellyfish prints in the world).

More than 500 million years ago there was a shallow tropical sea. The storm threw thousands of jellyfish onto the sandy beach. Around many of the prints, traces of jellyfish attempts to crawl into the water are visible. Then on Earth there were no birds capable of pecking at this unexpected treat. Therefore, the jellyfish lay for some time on the sand, and the next storms covered them with new layers of sand.

The dead animals gradually rotted away, leaving voids in the sand that repeat their shape. In the future, over millions of years, the sand caked, turning into a stone with the imprints of dead jellyfish inside.

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