After each mass shooting in the United States, we hear a lot of debate about gun policies and just how often these shootings happen. On Feb. 13, a gunman fatally shot three Michigan State University ...

Wednesday’s massacre in San Bernardino was the latest mass shooting in America. By some counts — including a heavily cited version — it was the 354th of the year. By a narrower definition, it was the ...

The problem is, you might see a few different numbers, all trying to quantify the same thing: the number of “mass shootings” during a given time. And they’re often radically different numbers. This ...

Atomic Number and Mass Number of Elements: Atoms are the building blocks of matter. They are responsible for the format of all living and non-living things. Understanding their molecular structure and ...