Hot dry rock geothermal energy as a separate state from that of the continuum of permeable rock—just as one would consider a completely closed faucet as distinct from one that is open to any degree, whether the flow be a trickle or a flood. In the same way, HDR technology should be regarded as totally distinct from EGS. A definitive book on HDR development, including a full account of the experiments at Fenton Hill, was published by Springer-Verlag in April 2012. Hot dry rock geothermal energy Hot dry rock (HDR) is an abundant source of geothermal energy available for use. A vast store of thermal
Notes from Underground individuals. The Underground Man ridicules the type of enlightened self-interest (egoism, selfishness) that Chernyshevsky proposes as the foundation of Utopian society. The concept of cultural and legislative systems relying on this rational egoism is what the protagonist despises. The Underground embraces this ideal in praxis, and he seems to blame it for his current state of unhappiness. This type of rebellion is critical to later works of Dostoevsky as it is used by adolescents to validate their own existence, uniqueness and independence (see Dostoevsky's "The Adolescent"); rebellion in the face of the dysfunction and disorder of adult experience that one