https://padlet.com/3045001/xzt45xfi4qd0 Padlet en-us 2017-11-14 17:30:35 UTC 2026-01-23 12:45:03 UTC hello@padlet.com 3045001 https://padlet.com/3045001/xzt45xfi4qd0/wish/206854165 a comb or tuft of feathers, fur, or skin on the head of a bird or other animal.]]> 2017-11-14 17:32:36 UTC https://padlet.com/3045001/xzt45xfi4qd0/wish/206854165 3045001 https://padlet.com/3045001/xzt45xfi4qd0/wish/206855623 a wave vibrating in the direction of propagation.]]> 2017-11-14 17:35:04 UTC https://padlet.com/3045001/xzt45xfi4qd0/wish/206855623 3045001 https://padlet.com/3045001/xzt45xfi4qd0/wish/206856519 the fact or phenomenon of light, radio waves, etc., being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.]]> 2017-11-14 17:36:37 UTC https://padlet.com/3045001/xzt45xfi4qd0/wish/206856519 3045001 https://padlet.com/3045001/xzt45xfi4qd0/wish/206857939 the throwing back by a body or surface of light, heat, or sound without absorbing it.]]> 2017-11-14 17:38:54 UTC https://padlet.com/3045001/xzt45xfi4qd0/wish/206857939 3045001 https://padlet.com/3045001/xzt45xfi4qd0/wish/206858963 Diffraction refers to various phenomena that occur when a wave encounters an obstacle or a slit. It is defined as the bending of light around the corners of an obstacle or aperture into the region of geometrical shadow of the obstacle]]> 2017-11-14 17:40:35 UTC https://padlet.com/3045001/xzt45xfi4qd0/wish/206858963 3045001 https://padlet.com/3045001/xzt45xfi4qd0/wish/206859901 Medium is an online publishing platform developed by Evan Williams, and launched in August 2012. It is owned by A Medium Corporation.]]> 2017-11-14 17:42:08 UTC https://padlet.com/3045001/xzt45xfi4qd0/wish/206859901 3045001 https://padlet.com/3045001/xzt45xfi4qd0/wish/206860209 a wave vibrating at right angles to the direction of its propagation]]> 2017-11-14 17:42:38 UTC https://padlet.com/3045001/xzt45xfi4qd0/wish/206860209 3045001 https://padlet.com/3045001/xzt45xfi4qd0/wish/206860925 A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. While waves can move over long distances, the movement of the medium of transmission—the material—is limited. Therefore, the oscillating material does not move far from its initial equilibrium position.]]> 2017-11-14 17:43:41 UTC https://padlet.com/3045001/xzt45xfi4qd0/wish/206860925