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Target ship

Target ship.
SMS Zähringen was a pre-dreadnought battleship of the Wittelsbach class of the Imperial German Navy. She was laid down in November 1899 and completed October 1902. She and her sister ships—Wittelsbach, Wettin, Schwaben and Mecklenburg—were armed with a main battery of four 24 cm (9.4 in) guns and had a top speed of 18 knots (33 km/h; 21 mph). These and the other ships of I Squadron underwent extensive annual training, as well as making goodwill visits to foreign countries. Zähringen was decommissioned in September 1910 as dreadnought battleships began to enter service and she saw little activity until the start of World War I in 1914. Zähringen saw limited duty in the Baltic Sea and played a minor role in the Battle of the Gulf of Riga. The ship was withdrawn from active service in late 1915 due to crew shortages and the threat from British submarines. After the war, she was converted into a radio-controlled target ship.

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Mosaics of Delos

Mosaics of Delos.
The mosaics of Delos are a significant body of ancient Greek mosaic art. Most of the surviving mosaics from Delos, Greece, an island in the Cyclades, date to the last half of the 2nd century BC and early 1st century BC, during the Hellenistic period and beginning of the Roman period. About half of all surviving tessellated mosaics from Hellenistic Greece come from Delos. The paved walkways of Delos range from simple pebble or chip-pavement constructions to elaborate mosaic floors composed of tesserae. Most motifs contain simple geometric patterns, while a handful utilize the opus tessellatum and opus vermiculatum techniques to create lucid, naturalistic, and richly colored scenes and figures. Mosaics have been found in places of worship, public buildings, and private homes. They share characteristics with those in other parts of the Greek world, such as Macedonian mosaics in Pella. They often employ a black-background technique as seen in the red-figure pottery of the Classical period.

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Pacific swift

Pacific swift.
The Pacific swift (Apus pacificus) is a bird that breeds in eastern Asia. This swift is strongly migratory, spending the northern hemisphere's winter in a wide range of habitats in Southeast Asia and Australia. The general shape and blackish plumage recall its relative, the common swift, from which it is distinguished by a white rump band and heavily marked underparts. Its main call is a screech typical of its family. It breeds in sheltered locations such as caves and rock crevices, or under the eaves of houses. The nest is a half-cup of dry grass and other fine material that is gathered in flight, cemented with saliva and attached to a vertical surface. Two or three white eggs are incubated for about seventeen days before hatching. Like all swifts, the Pacific swift feeds exclusively on insects caught in flight. The species has a large population that occurs as far afield as the US and New Zealand, and rarely in Europe.