Photomath

 

Photomath

Photomath (for iOS and Android devices). For high-school students who just need a bit more guidance on how to isolate “x” in their algebra homework, Photomath is essentially your math buddy that can instantly solve and explain every answer. Simply snap a photo of the question (you can also write or type), and the app will break down the solution into separate steps with helpful play-by-play, so that you can apply the same principles to the rest of your homework. (Digital Trends)

The David Rumsey Historical Map Collection Database and Blog

David Rumsey Map Collection

The David Rumsey Historical Map Collection and Blog.  Run out of Stanford, the database has many viewers and the Blog has numerous categories.  The historical map collection has over 67,000 maps and images online. The collection includes rare 16th through 21st century maps of AmericaNorth AmericaSouth AmericaEurope, Asia, Africa, Pacific and the World.

Google Earth Timelapse

screen-shot-2016-12-05-at-6-25-06-amGoogle Earth Timelapse

From the website: In 2013, we released Google Earth Timelapse, our most comprehensive picture of the Earth’s changing surface. This interactive experience enabled people to explore these changes like never before—to watch the sprouting of Dubai’s artificial Palm Islands, the retreat of Alaska’s Columbia Glacier, and the impressive urban expansion of Las Vegas, Nevada. Today, we’re making our largest update to Timelapse yet, with four additional years of imagery, petabytes of new data, and a sharper view of the Earth from 1984 to 2016. We’ve even teamed up again with our friends at TIME to give you an updated take on compelling locations.