Geothermal energy tapping the earth's heat /
This Science Screen Report looks at a clean and renewable energy source that is steadily gaining scientific acceptance: hot dry rocks, otherwise known as enhanced geothermal systems. The program shows how masses of heated granite approximately 3 miles underground can be accessed with advanced drilli...
|Other Authors:||Allegro Productions (Firm), Films for the Humanities & Sciences (Firm), Films Media Group.|
New York, N.Y. :
Films Media Group,
1 streaming video file (15 min.) : sd., col., digital file + instructional materials (online)