Spanish Biology Olympiad of the Interior. The Board of Directors of the Spanish Biology Olympiad (OEB) is elected every four years. The Members are members of the Association OEB and are generally also responsible for organisation of the regional stages. The first Board of the OEB was established in 2009 to work together until 2013, with the following members: José Luis Barba, Maria Jose Lorente, Carmen Díaz, Javier Fernández-Portal, Anselmo Frade, Joaquín Rodríguez, Pedro Nozal and Judith Sanabria. Spanish Biology Olympiad The Spanish Biology Olympiad () is a national competition organised by the Spanish Association of Biology Olympiad since 2005. It is open
How many angels can dance on the head of a pin? about how many could perch at the same time on the head of a pin"". Dorothy L. Sayers argued that the question was "simply a debating exercise" and that the answer "usually adjudged correct" was stated as, "Angels are pure intelligences, not material, but limited, so that they have location in space, but not extension." Sayers compares the question to that of how many people's thoughts can be concentrated upon a particular pin at the same time. She concludes that infinitely many angels can be located on the head of a pin, since they do not occupy any space there: