Unknown-Photographer
Lonely Walker on Palace Square
A Mirror Image (in a plane mirror) is a reflected duplication of an object that appears almost identical, but is reversed in the direction perpendicular to the mirror surface. As an optical effect it results from reflection off from substances such as a mirror or water. It is also a concept in geometry and can be used as a conceptualization process for 3-D structures.
Two-dimensional mirror images can be seen in the reflections of mirrors or other reflecting surfaces, or on a printed surface seen inside-out. If we first look at an object that is effectively two-dimensional (such as the writing on a card) and then turn the card to face a mirror, the object turns through an angle of 180° and we see a left-right reversal in the mirror. In this example, it is the change in orientation rather than the mirror itself that causes the observed reversal.
Palace Square connecting Nevsky Prospekt with Palace Bridge leading to Vasilievsky Island, is the central city square of St Petersburg. In the centre of the square stands the Alexander Column (1830–1834), designed by Auguste de Montferrand. This red granite column (the tallest of its kind in the world) is 47.5 metres high and weighs some 500 tons. It is set so well that it requires no attachment to the base.
The earliest and most celebrated building on the square, the Baroque white-and-turquoise Winter Palace (as re-built between 1754 and 1762) gives the square its name. Although the adjacent buildings are designed in the Neoclassical style, they perfectly match the palace in their scale, rhythm, and monumentality. The opposite, southern side of the square was designed in the shape of an arc by George von Velten in the late 18th century. These plans came to fruition half a century later, when Alexander I (reigned 1801–1825) envisaged the square as a vast monument to the 1812–1814 Russian victories over Napoleon and commissioned Carlo Rossi to design the bow-shaped Empire-style Building of the General Staff (1819–1829), which centers on a double triumphal arch crowned with a Roman quadriga.
Lonely Walker on Palace Square
A Mirror Image (in a plane mirror) is a reflected duplication of an object that appears almost identical, but is reversed in the direction perpendicular to the mirror surface. As an optical effect it results from reflection off from substances such as a mirror or water. It is also a concept in geometry and can be used as a conceptualization process for 3-D structures.
Two-dimensional mirror images can be seen in the reflections of mirrors or other reflecting surfaces, or on a printed surface seen inside-out. If we first look at an object that is effectively two-dimensional (such as the writing on a card) and then turn the card to face a mirror, the object turns through an angle of 180° and we see a left-right reversal in the mirror. In this example, it is the change in orientation rather than the mirror itself that causes the observed reversal.
Palace Square connecting Nevsky Prospekt with Palace Bridge leading to Vasilievsky Island, is the central city square of St Petersburg. In the centre of the square stands the Alexander Column (1830–1834), designed by Auguste de Montferrand. This red granite column (the tallest of its kind in the world) is 47.5 metres high and weighs some 500 tons. It is set so well that it requires no attachment to the base.
The earliest and most celebrated building on the square, the Baroque white-and-turquoise Winter Palace (as re-built between 1754 and 1762) gives the square its name. Although the adjacent buildings are designed in the Neoclassical style, they perfectly match the palace in their scale, rhythm, and monumentality. The opposite, southern side of the square was designed in the shape of an arc by George von Velten in the late 18th century. These plans came to fruition half a century later, when Alexander I (reigned 1801–1825) envisaged the square as a vast monument to the 1812–1814 Russian victories over Napoleon and commissioned Carlo Rossi to design the bow-shaped Empire-style Building of the General Staff (1819–1829), which centers on a double triumphal arch crowned with a Roman quadriga.