Buster Merryfield and Horses" in January 1985, as the former seafaring Albert Gladstone Trotter, known as Uncle Albert, who was Grandad Trotter's globetrotting long-lost younger brother, and who was known for Uncle Albert's catchphrase of "During the war..." The character took over the role of senior citizen member of the Trotter family from Lennard Pearce, who played Grandad, after Pearce died unexpectedly in December 1984. Coincidentally, nine months earlier, in March 1984, Merryfield appeared in two episodes of a "Shroud for a Nightingale" alongside Lennard Pearce. He did much work for various charities, notably the Royal National Lifeboat Institution. He wrote his
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