Frostrich

Snapchat  is an  image messaging  and  multimedia   mobile application  created by  Evan Spiegel ,  Bobby Murphy , and Reggie Brown, [5]  former students at  Stanford University , and developed by  Snap Inc. , originally Snapchat Inc. One of the principal concepts of Snapchat is that pictures and messages are  only available for a short time before they become inaccessible . The  prototype  for Snapchat was started by Brown and Spiegel as a project for one of Spiegel's classes at Stanford, where Spiegel was a  product design  major. Beginning as "Picaboo", the idea was to create a  selfie  app (application) which allowed users to share images that were explicitly short-lived and self-deleting. The temporary nature of the pictures would therefore encourage  frivolity  and emphasize a more natural flow of interaction. [6]  When, in April 2011, Spiegel floated the product idea in front of his class as a final project, the classmates focused on the impermanent aspect of the

Thunderstorm near Garajau,  Madeira Weather  is the state of the  atmosphere , to the degree that it is hot or cold, wet or dry, calm or stormy, clear or cloudy. [1]  Most weather phenomena occur in the lowest level of the atmosphere, the  troposphere , [2] [3]  just below the  stratosphere . Weather refers to day-to-day temperature and  precipitation  activity, whereas  climate  is the term for the averaging of atmospheric conditions over longer periods of time. [4]  When used without qualification, "weather" is generally understood to mean the weather of  Earth . Weather is driven by air pressure, temperature and moisture differences between one place and another. These differences can occur due to the sun's angle at any particular spot, which varies with  latitude . The strong temperature contrast between polar and tropical air gives rise to the largest scale  atmospheric circulations : the Hadley Cell, the Ferrel Cell, the Polar Cell, and the  jet stream . W

Megalodon From Wikipedia, the free encyclopedia For other uses, see  Megalodon (disambiguation) . Megalodon Temporal range: Early Miocene - Late Pliocene , ~ 23–2.6  Ma PreЄ Є O S D C P T J K Pg N Model of the jaws of  C. megalodon  at the  American Museum of Natural History . Scientific classification Kingdom: Animalia Phylum: Chordata Subphylum: Vertebrata Class: Chondrichthyes Subclass: Elasmobranchii Superorder: Selachimorpha Order: Lamniformes Family: † Otodontidae Genus: † Carcharocles Species: † C. megalodon Binomial name Carcharocles megalodon Carcharodon megalodon,   Agassiz , 1843 Synonyms Procarcharodon megalodon   Casier, 1960 Megaselachus megalodon   Glikman, 1964 Otodus megalodon   Agassiz, 1843 Megalodon  ( Carcharocles megalodon ) ( / ˈ m ɛ ɡ ə l oʊ ˌ d ɒ n /   MEG -ə-lə-don ,  / ˈ m eɪ ɡ ə - /   MAY -gə- ; meaning "big tooth", from  Ancient Greek :  μέγας   (megas)  "big, might