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
Economics terminology that differs from common usage be included. Common measures include M1, M2, and M3. In everyday usage, "money" can refer to the very liquid assets included in the technical definition, but it usually refers to something much broader. When someone says "She has a lot of money," the intended meaning is almost certainly that she has a lot of what economists would call financial wealth, which includes not only the most liquid assets (which tend to pay low or zero returns), but also stocks, bonds and other financial investments not included in the technical definition. Non-financial assets, such as land and buildings, may also be