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Global innovation index
Via economist.com
Read MoreArctic sea ice minimum volumes (1979 – 2015)
This is an animated visualization of the startling decline of Arctic Sea Ice, showing the minimum volume reached every September
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The Roman Empire at its Territorial Height
At its zenith under Emperor Trajan, the Roman Empire spanned 5 million square kilometers, from Britain to the Euphrates. Discover how natural barriers shaped its borders and strategy, and compare its vast expanse to modern nations through our interactive maps.
Read MoreNumber of reseachers per million inhabitants
Country Researchers per million inhabitants Finland 7,707 Iceland 7,315 Singapore 6,088 Denmark 5,670 Japan 5,573 Norway 5,468 Sweden 5,239 Luxembourg
Read MoreUS gun deaths by population
It is not surprising to anyone that firearms kill many people in the United States. Based on information from the
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Global CO2 concentration measurements from space
Via gfycat.com
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