Even though the science to support his conclusions is limited, he claimed that fluoride "causes IQ loss, profound IQ loss," ...

Shows the process of making a spring butcher tool, covering forging, shaping, and setup, and explaining how this traditional ...

Abstract: Biomimetic robots have the advantage of propulsion efficiency and maneuverability. Manta ray robots with soft, flexible, and distributed multi-stage pectoral fins have been proposed. Robots ...