If verified as a valid alternative, this new propellant could be used not only in spacecraft, but also in military vehicles that operate on hydrazine, said Roger Myers, executive director of Aerojet Rocketdyne, a partner in the program.
In contrast to the instinctual id and the moral superego, the ego is the rational, pragmatic part of our personality. It is less primitive than the id and is partly conscious and partly unconscious.
eidos - (anthropology) the distinctive expression of the cognitive or intellectual character of a culture or a social group. 1  attribute - an abstraction belonging to or characteristic of an entity. 2  anthropology - the social science that studies the origins and social relationships of human beings.