The World experienced tremendous economic growth over the past one hundred years thanks to the use of coal for the generation of electricity. But that growth model has now moved into the annals of history and will never return. Coal has been displaced by cleaner, cheaper and more effective forms of energy generation, due to the ...
Gender Identity / Geschlechtsidentität / Identidade de Gênero / Identidad de Género
Why a person feels male when they are biologically female, or the other way around remains uncertain. Embryos start to become male or female at about six to eight weeks. At that time, those with an active gene called SRY starts to produce the male sex hormon, testosterone. Without the hormon, embryos remain female. With testosterone, masculinisation ...