Complex sentence: In 1986 Marc Kirschner and Tim Mitchison proposed that microtubules used their dynamic properties of growth and shrinkage at their plus ends to probe the three dimentional space of the cell to find these structures in what is commonly known as "the search and capture model".
Split into simpler sentences: In 1986 Marc Kirschner and Tim Mitchison proposed that microtubules used their dynamic properties of growth and shrinkage at their plus ends to probe the three dimentional space of the cell. This idea is commonly known as "the search and capture model".