Flag of the Qing dynasty he petitioned the imperial court for permission and subsequently altered the triangular naval flag into a rectangular one. Seeing Western countries flying national flags on official occasions, Li Hongzhang also asked Empress Dowager Cixi to select a national flag for the Qing dynasty. Among the proposals for use of the Ba gua flag, the Yellow dragon flag and the Qilin flag, Cixi selected the Yellow dragon design. In 1888, the imperial court promulgated the naval flag as the Qing national flag. The notion of yellow as representative of Manchu ethnicity was used in the flags of the Five-coloured flag of
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: