Skip over navigation An expedient guide to visually distinct between a fair weather cumulus and a rain bearing cumulonimbus cloud, allowing you to forecast showers: A deepening (growing taller) cumulus signals showers. So, check whether the distance from base to top larger is than the distance between the earth's surface and the base.
Skip over navigation Whenforecasting rain - however rare in Greece or Turkey - it is important to realise that most people get taught that rain drops are shaped like tears by (university!) teachers that are actively perpetuating this urban myth. Weather icons used throughout the media are illustrative of this widespread fallacy, just do agoogle image search .
Skip over navigation The term wind chill goes back to the Antarctic explorer Paul A. Siple, who coined it in a study: "Adaptation of the Explorer to the Climate of Antarctica". In 1940 Siple and Charles F. Passel conducted experiments on the time needed to freeze 250 grams of water in a plastic cylinder that was exposed to the elements.
Skip over navigation In the beginning of the 19th century, sailors were describing wind forces instead of wind speeds, yet they lacks a uniform scale to estimate these forces. His scale as well as the more precise wind speeds in Knots or sometimes in meters per second are now widely used.