In September 2005, some of the most notable Blender artists and developers began working on a short film using primarily free software, in an initiative known as the Orange Movie Project hosted by the Netherlands Media Art Institute (NIMk) . The resulting film, Elephants Dream, premiered on March 24, 2006.
The fire emoji represents a streak. A streak in snapchat is defined as three days in a row in which you and a friend snap eachother. The number next to the streak tells you how many consecutive days you and a friend have snapped eachother. The fire emoji streak will appear when you have snapped three days in a row.
Snapchat's own documentation states that the company's servers retain a log of the last 200 snaps that were sent and received, but no actual content is stored. The documentation further explains that if the file is not viewed by the recipient, it remains on Snapchat's servers for 30 days.