Long restricted to the realms of sci-fi, the dream of flying at least five times the speed of sound - and getting anywhere in the world in less time than it takes to go from King’s Cross to Newcastle on the fast train - came a step nearer this month.
From the standpoint of anthropology and sociology, dating is linked with other institutions such as marriage and the family which have also been changing rapidly and which have been subject to many forces, including advances in technology and medicine.
However, one particularity of the human species is that pair bonds are often formed without necessarily having the intention of reproduction.
In modern times, emphasis on the institution of marriage, generally described as a male-female bond, has obscured pair bonds formed by same-sex and transsexual couples, and that many heterosexual couples also bond for life without offspring, or that often pairs that do have offspring separate.
As humans societies have evolved from hunter-gatherers into civilized societies, there have been substantial changes in relations between men and women, with perhaps one of a few remaining biological constants being that both adult women and men must have sexual intercourse for human procreation to happen.
Humans have been compared to other species in terms of sexual behavior.
‘It flew from London to Tokyo in two hours at Mach 6, which is surprisingly accurate if you allow for acceleration at the start and deceleration at the end.’The Fireflash flew at about 250,000ft - still within the Earth’s atmosphere - and Dr Atcliffe reckons this, too, could be about the perfect altitude.