The blades are the most important part of a turbine: their design is crucial in capturing as much energy from the steam as possible and converting it into rotational energy by spinning the rotor round. All turbines have a set of rotating blades attached to the rotor and spin it around as steam hits them.
Gender variance is defined as the persistent sense that a person's gender identity is incongruent with the person's biological sex. The definition further excludes the element of persistence for persons under the age of 21 and including, without limitation, transitioned transsexuals.
This mismatch between sex and gender identity can lead to distressing and uncomfortable feelings that are called gender dysphoria. Gender dysphoria is a recognised medical condition, for which treatment is sometimes appropriate. It is not a mental illness. The condition is also sometimes known as gender identity disorder (GID), gender incongruence or transgenderism. Some people with gender dysphoria have a strong and persistent desire to live according to their gender identity, rather than their biological sex.