Liquid metal imbalance of the surface tension induces a pressure difference between the rear and the head, which produces a thrust to drive the droplet toward the head; at the same time, the hydrogen produced in the electrochemical reaction process also further raises the thrust. The discovery of this phenomenon laid the technical foundation for the development of intelligent motors, vascular robots, fluid pumping systems, flexible actuators and even more complex liquid metal robots. Liquid metal Liquid metal consists of alloys with very low melting points which form a eutectic that is liquid at room temperature. The standard metal used to be
External debt of the Philippines 2015." Gross international reserves (GIR) of US$80.5 billion as of end-March 2015 represented 6.1 times cover for short-term (ST) debt under the original maturity concept compared to 4.9 times and 4.7 times as of end-December and March 2014.The Philippine's external debt is mostly consist of medium- to long-term (MLT) accounts which represented 82.6 percent of total. This implies that FX requirements for debt payments are well spread out and, thus, more manageable.The weighted average maturity for all MLT accounts stood at 17.0 years, with public sector borrowings having a longer average tenor of 22.2 years compared to 8.6 years for