EastEnders spin-offs few episodes still being made after this. A series of documentary shows, similar to "EastEnders Revealed" aired from 2006. "EastEnders Xtra" was an interactive series available between February and May 2005 via BBCi. There have also been two "EastEnders" Christmas specials, and two charity specials: "Dimensions in Time" was a crossover with the science fiction series "Doctor Who", and "Pudding Lane" relocated the characters to Pudding Lane in 1666. Both charity specials were made for Children in Need and neither are considered canon. On 4 April 2015, "EastEnders" bosses announced plans of a new six-part BBC drama series featuring iconic
All-or-none law contraction is not increased if the stimulus strength is further raised. Stronger stimuli bring more muscle fibres into action and thus the tension of a muscle increases as the strength of the stimulus applied to it rises. All-or-none law The all-or-none law is the principle that the strength by which a nerve or muscle fibre responds to a stimulus is independent of the strength of the stimulus. If that stimulus exceeds the threshold potential, the nerve or muscle fibre will give a complete response; otherwise, there is no response. It was first established by the American physiologist Henry Pickering Bowditch