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Futuristic picture of spider-man on the background of the city

Futuristic picture of spider-man on the background of the city

Futuristic picture of spider-man on the background of the city

Beautiful planet blue sky

Beautiful planet blue sky

Beautiful planet blue sky

Night city. Bright design

Night city. bright design

Night city. Bright design

The shining of stars in galactic space

The shining of stars in galactic space

The shining of stars in galactic space

Planets in the galaxy. Dark background

Planets in the galaxy. dark background

Planets in the galaxy. Dark background

Far far away galaxy and stars

Far far away galaxy and stars

Far far away galaxy and stars

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

A burning symbol on a black background

A burning symbol on a black background

A burning symbol on a black background

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

Exploration into an unexplored galaxy in space

Exploration into an unexplored galaxy in space

Exploration into an unexplored galaxy in space

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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. ).