WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
WikiVisually
The entire wiki reimagined as a visual magazine with video discovery · Watch your interests come alive
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Sundial
Videos
A sundial is a horological device that tells the time of day when direct sunlight shines by the apparent position of the Sun in the sky. In the narrowest sense of the word, it consists of a flat plate
SSW facing, vertical declining sundial on the Moot Hall in Aldeburgh, Suffolk, England. The gnomon is a rod that is very narrow, so it functions as the style. The Latin motto loosely translates as "I only count the sunny hours."
SSW facing, vertical declining sundial on the Moot Hall in Aldeburgh, Suffolk, England. The gnomon is a rod that is very narrow, so it functions as th
A horizontal dial commissioned in 1862, the gnomon is the triangular blade. The style is its inclined edge.
A horizontal dial commissioned in 1862, the gnomon is the triangular blade. The style is its inclined edge.
Bowstring sundial in Singapore Botanic Gardens. The design shows that Singapore is located almost at the equator.
Bowstring sundial in Singapore Botanic Gardens. The design shows that Singapore is located almost at the equator.
World's oldest sundial, from Egypt's Valley of the Kings (c. 1500 BC)
World's oldest sundial, from Egypt's Valley of the Kings (c. 1500 BC)
Ecliptic
Videos
The ecliptic or ecliptic plane is the apparent path of the Sun on the celestial sphere, resulting from Earth's orbit around the Sun. It was a central concept in a number of ancient sciences, providing
A depiction of the early Solar System's protoplanetary disk from which Earth and other Solar System bodies were formed
A depiction of the early Solar System's protoplanetary disk from which Earth and other Solar System bodies were formed
A dark sky view, showing the difference in inclination of the galactic plane of the Milky Way to the not much inclined to each other orbital planes of
A dark sky view, showing the difference in inclination of the galactic plane of the Milky Way to the not much inclined to each other orbital planes of the Solar System planets incl. the ecliptic, which is illuminated by the outlined zodiacal light and flanked by a meteor shower
The general motion and orientation of the Sun, with Earth and the Moon as its Solar System satellites
The general motion and orientation of the Sun, with Earth and the Moon as its Solar System satellites
At Earth's poles the Sun appears at the horizon only and all day around equinox, marking the change between the half year long polar night and polar d
At Earth's poles the Sun appears at the horizon only and all day around equinox, marking the change between the half year long polar night and polar day. The picture shows the South Pole right before March equinox, with the Sun appearing through refraction despite being still below the horizon.