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
Live from the Underground Live from the Underground Live from the Underground is the debut studio album by American rapper and record producer Big K.R.I.T.. It was released on June 5, 2012, by Cinematic Music Group and Def Jam Recordings. As one of the executive producers on the album, Big K.R.I.T. did the production work for the entirety of the project. The album was supported by four singles: "Money on the Floor", "I Got This", "Yeah Dat's Me" and "What U Mean". "Live from the Underground" received generally positive reviews from critics. At Metacritic, which assigns a normalized rating out of 100 to reviews