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Micro-photography touching the water

Moon and black birds in the night

Teenage mutant ninja turtle on a wall background

Teenage Mutant Ninja turtle on a wall background

Nusaiba reaches for the bear

Mac icon in space on the background of the earth

Mac icon in space on the background of the Earth

The iron warrior is preparing for battle

The Iron Warrior is preparing for battle

Wallpaper movie tron: legacy

Wallpaper movie Tron: Legacy

A view of the moonlight in america

A view of the moonlight in America

Space patrol on the background of the earth

Automatic machine on the starry sky map

Nylon, wire, lighting and a butterfly flew about its business

Insanely beautiful wave contrasts

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Система знаний о закономерностях в развитии природы, общества и мышления, а также отдельная отрасль таких знаний. То, что поучает, даёт опыт, урок (в 4 знач.; разг. ).