Template:Potd/2012-04

English : A giant minister surrenders to the Dutch at Schiphol Airport in 1970 (1m 10s).

English : A simulation of the behaviour of a gas cloud that has been observed approaching the supermassive black hole at the centre of the Milky Way

English : Drilling operation on a steel bar.

English : "Let It In", track 1 on Josh Woodward's 2010 release Ashes

English : Spotted Hyena and Black-backed jackal fighting over a Springbok at Dertiende Boorgat in the Kgalagadi Transfrontier Park

English : Form IV is the alkali-denatured form of duplex circular DNA. (Circular DNA cannot be heat-denatured). Its structure is generally considered to be unknown. The structure shown here may therefore be regarded as hypothetical, but not purely so, as there is no likely alternative. It is a 4-stranded structure which comes about because, at high pH, the circular duplex chromosome has become exceedingly supertwisted in the left-handed (positive) sense. This turns the formerly-circular duplex into an essentially-linear tetraplex, with 2 strands being donated from opposite sides of the former circle. By default, the essential feature of the structure must be that the phosphate groups are in the center, since no other alternative is readily imaginable.

English : Experimental demonstration of the generation and destructive impact of a super rogue wave in a wave tank

English : Space Shuttle Atlantis and the STS-110 crew launching 10 years ago today.

English : Small Lake Lucerne passenger boat MS Reuss, built in 1926. In scheduled service, Good Friday 2012.

English : Feeding the young starlings

English : Flight taking off from Biju Patnaik Airport, Bhubaneswar, Odisha, India.

English : Small Yellow Underwing (Panemeria tenebrata) is a European species of moth.

English : Milk fat drops in milk oscillating due to Brownian motion

English : Defense Advanced Research Projects Agency (DARPA)'s Visual Media Reasoning concept video relating to computer vision.

English : Animation of the PAM-D Payload Assist Module with the Phoenix spacecraft. The stage is successively spun, fired, yo-yo de-spun and jettisoned.

English : Emergence of a female Orange Tip (Anthocharis cardamines)

English : Video of the child walking in front of the death on the lower plate of the Strasbourg astronomical clock.

English : Common Raven (Corvus corax) in search of food. La Palma, Canary Islands.

English : This "airborne" tour was created from only a small portion of the images collected during a flight over the Pine Island Glacier crack on Oct. 26, 2011.

English : An IndiGo Airbus A320 landing in Indira Gandhi International Airport, New Delhi, India.

English : Hasta Vinyasas are a set of yoga vinyāsas which primarily involve movement of the arms. Pārśvabhāga Vinyāsa provides a healthy stretch to thoracic cavity and rib structures.

English : The flower scarab Oxythyrea funesta is present in most of Europe, in the East Palearctic ecozone and in the Near East.

English : "Hello" in ASL (American sign language)

English : 70 years ago today, The Magnetic Telescope, the sixth of the 1940s Superman animated Technicolor short films, was released.

English : Heron (Ardea herodias) fishing at Baker Lake, Washington, USA.

English : Volga-Dnepr Antonov An-124-100 - Antonov 124 @ Gilze Rijen. To / from Dutch Task Force @ Uruzgan, Afghanistan

English : The Serpent Dust Devil of Mars.

English : Common dolphins (Delphinus delphis) swimming in front of a displacement hull vessel. The footage was taken in Port Davey, South-West Tasmania, Australia. The brown colour of the water is due to naturally occurring tannins.

English : Ljubljana 1909. Original title: Ljubljana. The oldest preserved video recordings of Ljubljana, the capital of Slovenia.

English : New Zealand Scaup (Aythya novaeseelandiae) at Nga Manu Nature Reserve (Waikanae, New Zealand).