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App of the Week: Browse the Earth’s visual history

If the Earth had a photo history, it might look like this…

earth-viewerName: EarthViewer

What is it? What did Earth’s continents and oceans look like 250 million years ago, or even 1 billion years ago? What do we know about the climate back when our planet formed?

EarthViewer is like a time machine for exploring Earth’s deep history. Based on the latest scientific research, it lets you scroll through the last 4.5 billion years with your fingertips. Follow a favorite landmark, be it Greenland or New York City, as its position shifts through time, or watch a famous fossil like Tiktaalik make an incredible journey from its origin to its current location. Layer your view of shifting continents with data on atmospheric composition, temperature, biodiversity, day length, and solar luminosity, to get a more complete view of our dynamic planet.

Best for: Students and teachers

Price: Free

Requirements: iPad and iOS 4 or later; Android 7″ and 10″ tablets

Features:

EarthViewer features include:

• Continental reconstructions and accompanying data dating back billions of years
• World temperature map for the last 100 years
• Ability to manipulate the globe and zoom to any location
• Locations of modern cities tracked back over 500 million years
• In-depth features on major geological and biological events in Earth history
• Clickable details on geologic eons, eras, and periods
• Automated play modes
• Extensive reference list
• Suggestions for classroom use
• Tutorial videos
Link: EarthViewer App for iOS and Android

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