<div dir="ltr"><div><span style="color:rgb(154,154,154);font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:18px">27 Feb 2018 by Raf</span>  <br></div><ul><li>Interactive map of places and stages of the French revolution in Paris during February 1848<br><a href="https://www.thinglink.com/scene/1020670863348858883" target="_blank" style="font-size:13px">https://www.thinglink.com/scene/1020670863348858883</a> </li><li> Maps of the global fishing activity with data between 2012 and 2016 and more than 70K ship positions: 5 countries concentrate 85% of the catches, thanks Geni<br><a href="http://www.bbc.com/news/science-environment-43169824">http://www.bbc.com/news/science-environment-43169824</a></li><li> The dirtiest cities in the USA according to an algorithm that merges dirt, urban plagues, air quality and population density<br><a href="https://www.bbcleaningservice.com/dirtiest-cities-in-the-usa.html" target="_blank" style="font-size:13px">https://www.bbcleaningservice.com/dirtiest-cities-in-the-usa.html</a> </li><li> Spatial blockchain: an Ethereum protocol that provides secure services related to location testing, indexes and coordinates<br><a href="https://blog.foam.space/the-spatial-index-9793f42c46c8" target="_blank" style="font-size:13px">https://blog.foam.space/the-spatial-index-9793f42c46c8</a>  <br></li></ul></div>