Chartle.net - interactive charts online! Over 1 billion charts, maps, plots and diagrams are found in print publications each year - but only 40 million online.
This huge discrepancy is a reflection of the complexity to create & publish charts online.
Chartle.net tears down the complexity of online visualizations - offers simplicity, ubiquity and interactivity instead. in Public bookmarkswith chartsembeddedgraphinggraphsweb2.0
Maya Astronomy The Maya are well known for their precise calendar and astronomy. The four surviving written documents (which are called the Dresden, Madrid, Paris, and Grolier Codices) that they have left behind include an ephemeris that charts the heliacal risings and settings in the synodic cycle of the planet Venus and an eclipse warning table based on observable lunar and solar cycles. in Public bookmarkswith astronomycalendarchartscycleeclipsemayaplanet