Snowflake of ice. At that stage, the snowflake has the shape of a minute hexagon. The six "arms" of the snowflake, or dendrites, then grow independently from each of the corners of the hexagon, while either side of each arm grows independently. The microenvironment in which the snowflake grows changes dynamically as the snowflake falls through the cloud and tiny changes in temperature and humidity affect the way in which water molecules attach to the snowflake. Since the micro-environment (and its changes) are very nearly identical around the snowflake, each arm tends to grow in nearly the same way. However, being
Front and back ends end and a back end. The "front" is an abstraction, simplifying the underlying component by providing a user-friendly interface, while the "back" usually handles business logic and data storage. In telecommunication, the "front" can be considered a device or service, while the "back" is the infrastructure that supports provision of service. A rule of thumb is that the front (or "client") side is any component manipulated by the user. The server-side (or "back end") code usually resides on the server, often far removed physically from the user. Another way to understand the difference between the two is to understand the