Raw hydrazine fueled the shuttle's auxiliary power units, which generated hydraulic pressure for various functions in the shuttle.
Sources close to the investigation tell Forbes that Transocean engineers had last checked the blowout preventer 10 days before the rig explosion, and that BP believes the device suffered a leak of hydraulic pressure, preventing it from being able to shut the well.
The XOS 2 is nearly usable for the latter job, but even at 50 percent more efficient than the original (by the company's last count) it's still a prototype that requires a tethered high-pressure hydraulic engine to function.
ENGADGET: Raytheon's Sarcos XOS 2 military exoskeleton just does the heavy lifting -- for now
It is powered by an engine which drives a hydraulic pump to send oil under high pressure around its plumbing in order to animate its limbs.
It's festooned with high pressure pipes and a set of intimidating hydraulic rams.
The assertion is that hydraulic fracturing fluids, which are injected at high speed and high pressure to create cracks in the shale rock that traps natural gas, will seep into underground water aquifers.
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Lovingly nicknamed Anna Konda (no explanation necessary), the Norwegian bot was assembled using 20 hydraulic motors powered by a regular fire hose, whose 100 bars of pressure give it enough strength to break through walls and even lift a car right up off the ground.
By designing custom hydraulic servos and managing the robot's gait so that it only uses high pressure when it truly needs to (like when it's beginning to take a step), the company hopes to bring that number to 20 percent.
ENGADGET: Raytheon's Sarcos XOS 2 military exoskeleton just does the heavy lifting -- for now
Hydraulic fracturing pumps many thousands of gallons of mainly water and sand, with a few chemicals, at high pressure into tight gas-bearing shale deposits (hardened muds), creating cracks that allow gas to flow back up the well to the surface ( Shale Shock).
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