Hot dry rock geothermal energy Hot dry rock geothermal energy Hot dry rock (HDR) is an abundant source of geothermal energy available for use. A vast store of thermal energy is contained within hot - but essentially dry - impervious crystalline basement rocks found almost everywhere deep beneath the earth’s surface. A concept for the extraction of useful amounts of geothermal energy from HDR originated at the Los Alamos National Laboratory in 1970, and Laboratory researchers were awarded a U.S. patent covering it. Although often confused with the relatively limited hydrothermal resource already commercialized to a large extent, HDR geothermal energy is very different. Whereas
Seeds from the Underground Seeds from the Underground Seeds from the Underground is a studio album by Kenny Garrett. It was released on April 10, 2012, on Mack Avenue Records and received two Grammy nominations in Best Jazz Instrumental Album and Best Improvised Jazz Solo categories, as well as a NAACP Image Award nomination in Outstanding Jazz Album category, a Soul Train Award nomination in Best Traditional Jazz Artist/Group category, a Jazz Awards nomination for Alto Saxophonist of the Year and an Echo Award win in the Saxophonist of the Year category. The album received a 77/100 score on Metacritic, based on four reviews