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Quote of the day for December 27, 2024
Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety. -- Ben Franklin

On this beautiful day of

Friday
27
December
20:06 UTC
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Reduced Gravity Walking Simulator
The Reduced Gravity Walking Simulator was a facility developed by NASA in the early 1960s to study human movement under simulated lunar gravity conditions. It was located at NASA's Langley Research Center in Virginia and was designed to prepare astronauts for the Moon landings during the Apollo program. The simulator was tilted at a 9.5-degree angle from the vertical and test subjects were suspended on their side by cables at the same angle. This set-up allowed the trainees to walk along the surface while experiencing only one-sixth of Earth's gravity. It was also used to study the physiological effects on the astronaut's body during movement. In total, 24 astronauts used the simulator to train for lunar missions, including all three astronauts of the Apollo 1 mission. This photograph, taken in 1963, shows a test subject being suited up by two technicians on the Reduced Gravity Walking Simulator.Photograph credit: NASA


Amphipoea oculea

Amphipoea oculea, the ear moth, is a moth in the family Noctuidae, with a wingspan of 29 to 34 millimetres (1.1 to 1.3 inches). Its range includes southern England, where it is widespread and common, as well as Ireland and continental Europe, with the exception of Albania, Greece and Turkey. Adults are found from June to September depending on the location, with one generation occurring per year. At night the moths come to light and flowers, seeking honeydew and sugar. During the day they feed at the flowers of thistles and ragwort. This female A. oculea moth was photographed feeding on field scabious in Keila, Estonia. The photograph was focus-stacked from 22 separate images.

Photograph credit: Ivar Leidus

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Wood carving of the birth of Christ from the Kefermarkt altarpiece

The Kefermarkt altarpiece is a richly decorated wooden altarpiece in the Late Gothic style in the parish church of Kefermarkt in Upper Austria. Commissioned by the knight Christoph von Zelking, it was completed around 1497. Saints Peter, Wolfgang and Christopher are depicted in the central section. The wing panels depict scenes from the life of Mary, and the altarpiece also has an intricate superstructure and two side figures of Saints George and Florian. The identity of its maker, known by the notname Master of the Kefermarkt Altarpiece, is unknown, but at least two skilled sculptors appear to have created the main statuary. Throughout the centuries, it has been altered and lost its original paint and gilding; a major restoration was undertaken in the 19th century under the direction of Adalbert Stifter. The altarpiece has been described as "one of the greatest achievements in late-medieval sculpture in the German-speaking area". This image shows the upper-left wing panel of the Kefermarkt altarpiece, depicting the birth of Christ. Mary is portrayed kneeling in devotion in front of the infant Christ, who is placed before her on a fold of her dress. On the other side, Joseph is also kneeling in front of the child. Above Mary, on the roof of the building behind them, are two angels playing a mandolin and a lute. The annunciation to the shepherds can be seen in the background.

Sculpture credit: Master of the Kefermarkt Altarpiece; photographed by Uoaei1