![How physicists solved the problem of infinity](https://hight3ch.com/wp-content/uploads/2017/05/how-physicists-solved-the-proble.jpg)
During the mid 20th century, physicists were grappling with a perplexing puzzle. It seemed that every time they applied equations to explain fundamental properties we see and experience around us — like the mass of a particle or what happens when two particles interact with each other — they always got the same answer: infinity.