TARDIS to those first seen in 1963, with multiple roundels illuminated from behind. The fourth major redesign of the TARDIS in the revived series appeared in the eleventh series. New production designer Arwel Wyn Jones said that the inspiration for the Thirteenth Doctor's TARDIS was based on the 2005-10 model, which he had worked on. The console room is the "safest place on the ship," and so when its occupants are in danger the TARDIS will reinvent its architecture so as to allow them to enter the console room. This can also result in the TARDIS materialising itself within its own
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