The natural effect causing paint to rise up the hairs of a paintbrush, and liquid to rise up a narrow tube is called (what) action?
Capillary action Capillary action Capillary action (sometimes capillarity, capillary motion, capillary effect, or wicking) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity. The effect can be seen in the drawing up of liquids between the hairs of a paint-brush, in a thin tube, in porous materials such as paper and plaster, in some non-porous materials such as sand and liquefied carbon fiber, or in a cell. It occurs because of intermolecular forces between the liquid and surrounding solid surfaces. If the diameter of the tube is
Rise Up (Cliff Richard album) Rise Up (Cliff Richard album) Rise Up is a studio album by British pop singer Cliff Richard, released on 23 November 2018 by Vox Rock and Warner Music. It is Richard's first album of new material in 14 years (following 2004's "Something's Goin' On"). The album follows Richard's legal battle with the BBC, and he has said of the album's title, "I chose 'Rise Up' as the title track because after the bad period I went through in my life, I've managed to rise up out of what seemed like a quagmire". Richard also said he hopes the album will