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Showing posts from December, 2018

Visual impacts of artificial sky brightness in Europe

More than 99 percent of European populations live under light-polluted skies. The Milky Way is hidden from more than 60 percent of Europeans and nearly 80% of North Americans. Moreover, 88 percent of the European’s land surfaces between 75°N and 60°S experience light-polluted nights .

Three Hundred Years of Element Discovery in 99 Seconds

In the past 300 years, we have discovered 105 elements.  

Global Seismic Hazard Map

Global Earthquake Model Global Seismic Hazard Map The Global Seismic Hazard Map depicts the geographic distribution of the Peak Ground Acceleration (PGA) with a 10% probability of being exceeded in 50 years, computed for reference rock conditions (shear wave velocity, VS30, of 760-800 m/s). The map was created by collating maps computed using national and regional probabilistic seismic hazard models developed by various institutions and projects, and by Global Earthquake Model Foundation scientists. The OpenQuake engine, an open-source seismic hazard, and risk calculation software developed principally by the Global Earthquake Model Foundation were used to calculate the hazard values. A smoothing methodology was applied to homogenize hazard values along the model borders. The map is based on a database of hazard models described using the OpenQuake engine data format (NRML); those models originally implemented in other software formats were converted into NRML. While translating these

For each country in the world the red area shows where 95 percent of them live, the percentage is how much land this represents for each country

Reddit user: neilrkaye Related post - Nobody Lives Here