TARDIS 2005–10, the roundels are built into hexagonal recesses in the walls. Ever since the TARDIS was redesigned at the beginning of the 2010 series, there have been a range of different roundel designs around the console room. These include circular holes that are recessed deep into the walls, hexagonal holes that are lit from behind each face, round indents with brass rings around the outside, and a glass centre that is illuminated blue. In "The Day of the Doctor", when the TARDIS' control room briefly appears as the War Doctor's room, the Eleventh Doctor points out to the Tenth Doctor
One-sex and two-sex theories of fluid, which would mix together and the two emissions would result in conception. If women have organs that resemble those of men, and since men obviously experience an orgasm, the woman must too. Women needed to orgasm to produce fluids during intercourse that would stir with the male ejaculate to conceive a child. Laqueur notes that "the fact that women had gonads like men, that they had sexual desires, that they generally produced fluid during intercourse and presumably showed signs of 'delight and concussion', all confirmed the orgasm/conception link." Albrechet von Haller, an eighteenth-century biologist, felt that male and