Supernova Supernova is a stellar explosion that is more energetic than a nova , during a time interval that could be over several weeks ...

General relativity vs. special relativity Before we get in to details first we must know that understanding General relativity or...

Cosmic rays are extremely high energy particles mainly coming from the outside of our solar system , they primarily composed of high en...

a cougar or it is commenly called the panther . the puma , the mountain lion  It is the biggest animal in north america  but unlike...

Food waste facts One in  7 people is h ungry  1/3 of food is wasted  13.1% of people are hungry  33% of food is wasted ...