The Hawaiian Volcano Observatory celebrated the 30th anniversary of Mauna Loa's last eruption (in 1984) on March 25, 2014, underscoring that it has been a realtively quite 3 decades at the world's largest active volcano.
A tiltmeter, is a type of instrument used to detect any kind of tilt in the structure to which it is attached. Most tiltmeters use an air bubble in a liquid-filled tube, much like a typical carpenter's level, but are equipped with sensitive electronics that can detect even the tiniest change in tilt. They either sound an alarm or transmit the data to a remote monitor or other device.
a dynamometer is a machine used to measure torque and rotational speed from which power produced by a motor can be measured the main components of a dynamometer are base provides a stable platform where all components are mounted pedestals provides support and transfers static and rotational forces to the base collection box collects the coolant discharged from the dynamometer after usage rotor shaft the rotating element that is turned by the unit being tested stator housing encases and supports the rotor also assists in cooling