However, some of his contemporaries, notably Robert Hooke, did not agree with his ideas. They were enemies and rivals. As part of their Light Science unit, Year 6 used their knowledge of shadows to create puppets to retell the narrative between these two scientists. Through learning that a shadow can change size depending on the distance the object casting it is from the light source and that shadows can also be elongated or shortened depending on the angle of the light source, year 6 experimented with the distance between the object and the light source in their performance.