And then they send down a very high-speed injection of water into the well casing, and of course that flows into the rock and it puts little - tiny little hairline cracks in the rock, opens it up.
Automakers have been achieving incremental improvements in the efficiency of their conventional engines with new technologies like direct-injection, six-speed transmissions, turbo-chargers and start-stop systems.
Automakers have been achieving incremental improvements in the efficiency of their conventional engines with new technologies like direct-injection, six-speed transmissions, turbochargers and start-stop systems.