In cosmology and astronomy the phenomena of stars, nova, supernova, quasars and gamma-ray bursts are the universe's highest-output energy transformations of matter. All stellar phenomena (including solar activity) are driven by various kinds of energy transformations. Energy in such transformations is either from gravitational collapse of matter (usually molecular hydrogen) into various classes of astronomical objects (stars, black holes, etc.), or from nuclear fusion (of lighter elements, primarily hydrogen). The nuclear fusion of hydrogen in the Sun also releases another store of potential energy which was created at the time of the Big Bang. At that time, according to theory, space expanded and the universe cooled too rapidly for hydrogen to completely fuse into heavier elements. This meant that hydrogen represents a store of potential energy that can be released by fusion. Such a fusion process is triggered by heat and pressure generated from gravitational collapse of hydrogen clouds when they produce stars, and some of the fusion energy is then transformed into sunlight.
Hydrogen represents a store of potential energy that can be released by what?
fusion

Programmes, such as the politically fuelled Give My Head Peace (produced by BBC Northern Ireland) and the soap opera River City (produced by BBC Scotland), have been created specifically to cater for some viewers in their respective nations, who may have found programmes created for English audiences irrelevant. BBC Scotland produces daily programmes for its Gaelic-speaking viewers, including current affairs, political and children's programming such as the popular Eorpa and De a-nis?. BBC Wales also produces a large amount of Welsh language programming for S4C, particularly news, sport and other programmes, especially the soap opera Pobol y Cwm ('People of the Valley'). The UK nations also produce a number of programmes that are shown across the UK, such as BBC Scotland's comedy series Chewin' the Fat, and BBC Northern Ireland's talk show Patrick Kielty Almost Live.
What language does BBC Scotland provide programming for?
Gaelic

YouTube is a global video-sharing website headquartered in San Bruno, California, United States. The service was created by three former PayPal employees in February 2005. In November 2006, it was bought by Google for US$1.65 billion. YouTube now operates as one of Google's subsidiaries. The site allows users to upload, view, rate, share, and comment on videos, and it makes use of WebM, H.264/MPEG-4 AVC, and Adobe Flash Video technology to display a wide variety of user-generated and corporate media video. Available content includes video clips, TV clips, music videos, movie trailers, and other content such as video blogging, short original videos, and educational videos.
How much did Google pay for Youtube in 2006?
US$1.65 billion