Such a thick layer can be observed when the liquid is held within a transparent container and the observer is looking at the top most portion of the liquid from the sides of the transparent container.

Light that is reflected back from the edge of the medium it is traveling through. When light rays travel at an angle greater than the "critical" angle, which is determined by the medium, the light ...

GCSE WJEC The total internal reflection of waves – WJEC Test questions This topic explores the conditions necessary for total internal reflection of light. It discusses applications of total internal ...

Cool operator: the Saharan silver ant Cataglyphis bombycina. (Courtesy: P Landmann) A species of desert-dwelling ant is able to tolerate temperatures exceeding 50 °C because its body hairs act like ...