This planet was by far the hardest for me to render properly. I've put together two different models of Earth; one is designed to be photo-realistic, and the other is designed after NASA's Blue Marble. Both models include optional night and city lights sections. These Earth models have been used in various productions by hobbyists and film groups. I've written a tutorial demonstrating how to build the models - you may find it here.
This is the official development website for BS 8723: Structured Vocabularies for Information Retrieval. It was created specifically to support Part 5 of the standard, known as DD 8723-5, dealing with Exchange formats and protocols for interoperability.
Describe Cassandra data model with examples and simplicity. This tutorial includes column, super column, column family, super column family, keyspace, validator & comparator.