Assorted Links

1. Where on earth is the Berlin wall?   Full story here
   
   
2. You could fit all the planets of the Solar System within the distance between the Earth and the Moon
   
   
3. The gradparents of smartcars  via MR
   
   
4. A Visual Survey of Text Visualization Techniques
   
   
5. A Globe-Spanning Accent Map for the Word 'Potato'
   
   
6. OECD report: How was life? Global well-being since 1820 via Leo Monasterio
   
   
7. Varian on Big Data: New Tricks for Econometrics via Gary King
   
   
8. The Twitter map of the Brazilian Elections