Wikipedia Picture of the Day - July 17th, 2020 - National Gold Bank Note (Narrated by Brian) National Gold Bank Notes were issued by banks in California in the 1870s and 1880s, following the California Gold Rush. Gold coinage was the preferred means of exchange during this period but coinage was difficult for larger transactions, so these national bank notes were issued, redeemable in gold. Printed on yellow-tinted paper, the six denominations that circulated were $5, $10, $20, $50, $100, and $500. A $1,000 note was designed and printed, but never issued. Today, the higher-denomination notes are very rare, and only about 630 National Gold Bank Notes of all denominations are known still to be in existence. This picture shows a twenty-dollar National Gold Bank Note issued by the First National Gold Bank of San Francisco. The note is hand-signed by Edwin D. Morgan and Ralph C. Woolworth, the bank's cashier and president, respectively. Other denominations: $5 $10 $50 $100 Banknote design credit: Continental Bank Note Company; photographed by Andrew Shiva Source: https://en.wikipedia.org/wiki/Template:POTD/2020-07-17 This video was auto generated using data and media from Wikipedia. ... https://www.youtube.com/watch?v=kxsiK5AwLLA

Wikipedia Picture of the Day - November 28th, 2023 - Hyles gallii (Narrated by Salli) Hyles gallii, also known as the bedstraw hawk-moth, is a moth of the family Sphingidae. The species was first described by S. A. von Rottemburg in 1775 and is found in North America, in Europe to the Arctic Circle, in Central Asia, and in Japan. This image shows a late-stage H. gallii caterpillar in Keila, Estonia. Caterpillars of the species can reach a length of 70 to 80 millimetres (2.8 to 3.1 in), with variable colouring. One type is olive green with cream spots and a reddish-brown head, while another is almost entirely black. Photograph credit: Ivar Leidus Source: https://en.wikipedia.org/wiki/Template:POTD/2023-11-28 This video was auto generated using data and media from Wikipedia. ... https://www.youtube.com/watch?v=1b3lCxssvz0

Wikipedia Picture of the Day - September 25th, 2020 - Climate of Mars (Narrated by Brian) Although Mars is smaller than the Earth and 50 percent farther from the Sun, its climate has important similarities with the Earth, such as the presence of polar ice caps, seasonal changes and observable weather patterns. This image shows layered deposits in Planum Boreum, in the north polar region of Mars, which formed from a 3-kilometre-thick (2 mi) stack of dusty water-ice layers about 1,000 km (600 mi) across. The layers record information about the climate of the planet stretching back several million years. Erosion has created scarps and troughs that expose the layering. The tan-colored layers are the dusty water ice of the polar layered deposits, however a section of bluish layers is visible below them. These bluish layers contain sand-sized rock fragments that likely formed a large polar dunefield before the overlying dusty ice was deposited. This photograph, depicting an area approximately 1.3 km (0.8 mi) across, was captured by the HiRISE camera on board NASA's Mars Reconnaissance Orbiter. Photograph credit: NASA / JPL–Caltech / University of Arizona Source: https://en.wikipedia.org/wiki/Template:POTD/2020-09-25 This video was auto generated using data and media from Wikipedia. ... https://www.youtube.com/watch?v=zm_02U-Pc74

Astronomy Picture of the Day - February 27th, 2023 - Zodiacal Ray with Venus and Jupiter (Narrated by Emma) What's causing that unusual ray of light extending from the horizon? Dust orbiting the Sun. At certain times of the year, a band of sun-reflecting dust from the inner Solar System appears prominently after sunset or before sunrise and is called zodiacal light. The dust was emitted mostly from faint Jupiter-family comets and slowly spirals into the Sun. The featured HDR image, acquired in mid-February from the Sierra Nevada National Park in Spain, captures the glowing band of zodiacal light going right in front of the bright evening planets Jupiter (upper) and Venus (lower). Emitted from well behind the zodiacal light is a dark night sky that prominently includes the Pleiades star cluster. Jupiter and Venus are slowly switching places in the evening sky, and just in the next few days nearing their closest angular approach. Image Credit & Copyright: Ruslan Merzlyakovastrorms Source: https://apod.nasa.gov/apod/ap230227.html This video was auto generated using data from NASA Open API. ... https://www.youtube.com/watch?v=WTQSLG7RXoE