Tasa Graphic Arts

pangaea

Paid

The pangaea app dynamically shows the breakup of the supercontinent Pangaea and the positions of the continents over the last 200 million years on...

Folds and Faults

Paid

Folds and Faults provides an illustrated overview of two significant topics in geology: folds and faults. Understanding folds and faults helps to...

Focus on Earthquakes

Paid

Focus on Earthquakes provides a comprehensive description of the causes and consequences of earthquakes. In addition to the text, this new-media...

Earthquake Finder

Paid

Earthquake Finder provides a visual display of recent earthquake activity on a 3D globe or 2D flat map of the world.