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.
A delayed green light means that traffic stopped on one side of an intersection with a traffic signal get the green light to proceed prior to the traffic on opposite side of the intersection. Traffic on both sides get a green light; the delay just means that one side moves prior to the other.