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Although a number of human activities are conducted underwater—such as research, scuba diving for work or recreation, or even underwater warfare with submarines—this very extensive environment on planet Earth is hostile to humans in many ways and therefore little explored. An immediate obstacle to human activity under water is the fact that human lungs cannot naturally function in this environment...

The iPad is a tablet computer designed, developed and marketed by Apple primarily as a platform for audio-visual media including books, periodicals, movies, music, games, and web content. At about 1.5 pounds (680 grams), its size and weight fall between those of contemporary smartphones and laptop computers. Apple released the iPad in April 2010, and sold 3 million of the devices in 80 days...

The Salford grandfather-of-five, known as El Inglés since killing his first bull in 1966, is the only British bullfighter to earn the accolade of "matador de toros" and the oldest torero on Spain's bullfighting circuit. And he is certainly the only matador to attempt a comeback following a quadruple heart bypass and knee replacement surgery...

Deepwater Horizon was an ultra-deepwater, dynamically positioned, semi-submersible drilling rig (oil rig) built in 2001. The purpose of this rig was to drill oil wells deep underwater, moving from location to location, as needed. Once the drilling was complete, pumping production was handled by other equipment. Deepwater Horizon was owned by Transocean and leased to BP through September 2013. In September 2009, she drilled the deepest oil well in history...

Penélope Cruz Sánchez (born April 28, 1974), better known as Penélope Cruz, is a Spanish actress. At 15, she was signed by an agent. She made her acting debut at 16, and her feature film debut the following year in Jamón, jamón (1992), to critical acclaim. Her subsequent roles in the 1990s and 2000s included Open Your Eyes (1997), The Hi-Lo Country (1999), The Girl of Your Dreams (2000) and Woman on Top (2000). Cruz achieved recognition for her lead roles in Vanilla Sky and Blow...

A POTD is an acronym for "Photo of the Day", "Picture of the Day", "Post of the Day" or "Poll of the Day". It is a term most commonly used by online digital photography communities as an honor to outstanding photos that are selected daily from among that community's membership. They can either be tagged as POTD or displayed in a special page on that site...