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A picture of Metamorphosis with a falling tile

A picture of metamorphosis with a falling tile

A picture of Metamorphosis with a falling tile

Electric charge from the button in different directions

Electric charge from the button in different directions

Electric charge from the button in different directions

Underwater tunnel at the bottom of the ocean

Underwater tunnel at the bottom of the ocean

Underwater tunnel at the bottom of the ocean

Purple balls on a dark background

Purple balls on a dark background

Purple balls on a dark background

A fiery guitar on a black background

A fiery guitar on a black background

A fiery guitar on a black background

Moon Desktop Screensaver

Moon desktop screensaver

Moon Desktop Screensaver

The endless misty space of the galaxy

The endless misty space of the galaxy

The endless misty space of the galaxy

There are many beautiful stars in the universe

There are many beautiful stars in the universe

There are many beautiful stars in the universe

Incandescent glowing celestial body

Incandescent glowing celestial body

Incandescent glowing celestial body

The planet Saturn. Outer space

The planet saturn. outer space

The planet Saturn. Outer space

Fantasy girl against the sky

Fantasy girl against the sky

Fantasy girl against the sky

There are many stairs inside the space box

There are many stairs inside the space box

There are many stairs inside the space box

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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. ).