Normal or 'traditional' reservists are the most common kind of reservist. They have 'drill weekends' one weekend of every month, and in addition they have to serve for two weeks every year. Their work is focused on training and staying ready to fly/fight in case they're ever needed to deploy.
DONG Energy (former names: Dansk Naturgas and Dansk Olie og Naturgas (abbreviated as DONG)) is an integrated energy company based in Fredericia, Denmark. It is Denmark's largest energy company. Above text from Wikipedia is available under the CC-BY-SA license.
Is there energy in space? What is energy? Physicists, who are scientists who study force, motion and energy, say that energy is the ability to do work, and work is moving something against a force, like gravity. There are a lot of different kinds of energy in the universe, and that energy can do different things.