Deezer France. Almost immediately after the partnership began, the rate of users signing up for Deezer's premium services went from 6,000 a month to 100,000; by January 2011, 500,000 people were subscribing to the service, with the million-subscriber mark reached in the middle of 2011, half a year ahead of schedule. The two companies expanded their partnership in September 2011 to include Orange contract customers in the United Kingdom. Also in September, Deezer added Facebook integration to its service, allowing users to send music to one another via that social media service. Deezer was launched in France in 2007. On 7
Tidal acceleration or that orbit in a retrograde direction. The naming is somewhat confusing, because the speed of the satellite relative to the body it orbits is "decreased" as a result of tidal acceleration, and "increased" as a result of tidal deceleration. Edmond Halley was the first to suggest, in 1695, that the mean motion of the Moon was apparently getting faster, by comparison with ancient eclipse observations, but he gave no data. (It was not yet known in Halley's time that what is actually occurring includes a slowing-down of Earth's rate of rotation: see also Ephemeris time – History. When measured