Indirect ways of assessing past temperatures, using so-called temperature proxies, take measurements of responses to past temperature change that are preserved in natural archives such as ice, rocks and fossils.
Wikipedia has an article on: Reorder tone. Wikipedia. fast busy signal â(plural fast busy signals) (telephony) An audible signal on a voice phone line that sounds more frequently than a standard busy singal, indicating that no transmission path to the called phone number is available.
Read on to learn the meaning behind basic traffic signals. Typically, traffic signals either appear with a steady light or a flashing light. The message behind a steady light signal differs depending upon the color of the light: Steady red lights signal a stop. When approaching an intersection, you must stop before the pedestrian crosswalk.