A 1 rupiah banknote from the first issue of banknotes by newly formed Indonesia. Although dated 17 October 1945, the notes were not actually issued until late 1946. The legal tender obligation is arched across the front of the note, Tanda pembajaran jang sah ("A valid/legal indication of payment"). The banknote is unevenly cut, and the top and bottom of the design are not completely parallel.Banknote: Government of Indonesia; image courtesy of the National Numismatic Collection
The Mercator projection is a cylindrical map projection presented by the Flemish geographer and cartographer Gerardus Mercator in 1569. Because it represents paths of constant course as straight lines, it long served as the standard map projection for nautical purposes. However, it distorts the size of objects as the latitude increases: thus areas in the mid-latitudes appear significantly larger than their actual size relative to those the equator, and those near the poles are even more exaggerated. Most modern atlases no longer use the Mercator projection for world maps or for areas distant from the equator, preferring other cylindrical projections, or forms of equal-area projection.Map: Strebe, using Geocart
A Tibetan manjuvajramandala with 43 deities, measuring 71 by 85 centimetres (28 in × 33 in) and held at the Museo d'Arte Orientale.
Such mandalas are spiritual and ritual symbols in Indian religions, representing the universe. Most mandalas consist of a square with four gates containing a circle with a center point and exhibit radial balance. Each gate is generally shaped like a T. Mandalas may be employed for focusing attention of practitioners and adepts, as a spiritual guidance tool, for establishing a sacred space, and as an aid to meditation and trance induction.Thangka: Unknown
Odissi is an ancient classical dance that originated in the Hindu temples of Odisha, India. Historically, it has been performed predominantly by women, and expressed religious stories and spiritual ideas, particularly of Vaishnavism (Vishnu as Jagannath), but also of other traditions such as those related to Hindu gods Shiva and Surya, as well as Hindu goddesses (Shaktism). Modern Odissi productions by Indian artists have presented a diverse range of experimental ideas, culture fusion, themes and plays.
Odissi is learnt and performed as a composite of a basic dance motif called the Bhangas (symmetric body bends, stance). It involves the lower, mid, and upper body as three sources of perfecting expression and audience engagement with geometric symmetry and rhythmic musical resonance.Photograph: Augustus Binu
The Alhambra is a palace and fortress complex located in Granada, Andalusia, Spain. Originally constructed as a small fortress in AD 889, it was largely ignored until the ruins were renovated and rebuilt in the mid-13th century by the Moorish emir Mohammed ben Al-Ahmar. Over the years it has served as the royal palace of Yusuf I of Granada and the royal court of Isabella I of Castile. The Alhambra is now one of Spain's major tourist attractions, exhibiting the country's most significant and well-known Islamic architecture, together with 16th-century and later Christian building and garden interventions.Photograph: Kim Hansen
Dendrogramma is a monotypic genus of siphonophore identified in 2014 from a collection of specimens gathered in 1986. Although specimens were at first identified as two species, D. enigmatica and D. discoides, these were later shown to represent varieties of a single species. When Dendrogramma was first discovered, it was speculated that the genus could not be classified into any existing phylum. However, examination of RNA material identified it as a siphonophore in 2016. The specimens are presumed to represent parts (bracts) of a larger organism whose entire morphology is unknown.
This diagram, depicting the holotype, was included in the article which first describedDendrogramma.Photograph: Jean Just, Reinhardt Møbjerg Kristensen, and Jørgen Olesen
A 100-korun banknote from the first issue of the Czechoslovak koruna, the national currency of Czechoslovakia from 1919 to 1939 and from 1945 to 1993. The issue, which consisted of denominations of 10, 20, 50, 100 and 1000 korun, used banknotes of the Austro-Hungarian Bank to which adhesive stamps equal to 1/100 the value of the note were affixed.
A portrait of a king vulture (Sarcoramphus papa) at Walsrode Bird Park, Germany. This species of vulture lives predominantly in tropical lowland forests stretching from southern Mexico to northern Argentina. Though its ruff, flight, and tail feathers are gray to black, the king vulture's head and neck are bald and with varying skin color.Photograph: Olaf Oliviero Riemer
The Royal Kurgan is a 4th century BC kurgan (burial barrow) located near present-day Kerch, Crimea. The mound is almost 20 metres high and its base perimeter is about 250 metres. It holds a burial chamber with a square floor plan which gradually merges into the circular shape of a corbelled dome ("false vault"). It is assumed that the Royal Kurgan was the final resting place of a ruler of the Bosporan Kingdom.Photograph: Anatoly Shcherbak