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
The Skin I'm In new English teacher, the outspoken Miss Saunders, really is on her side. The Skin I'm In The Skin I'm In is a realistic fiction novel written by Sharon G. Flake. It was published by Hyperion Books on January 3, 2000. It depicts the story of seventh grader Maleeka Madison who has low self-esteem because of her dark skin color. Thirteen-year-old Maleeka Madison is tall, skinny, and dark-skinned. That's a problem for her, because it's such a problem for everyone else at school, it seems. To make her life easier, Maleeka befriends the toughest girl in school. Only bullies force you