https://austria-forum.org/af/Wissenssammlungen/Essays/Naturwissenschaften/Auf_der_Suche_nach_dem_Leben_%28Erwin_Schr%C3%B6dinger%29
http://timelineoftheatom.blogspot.com/p/erwin-schrodinger-1926.html
In 1926 Schrodinger combined the equation for the behavior of waves with the DeBroglie equation to generate a mathematical equation for the distribution of electrons in an atom. Schrodinger also stated that electrons are waves spread out rather than in any precise location. Schrodinger formulated a wave equation that could precisely calculated the energy levels in an atom. He is also famously known for Schrodinger’s cat whereas a cat in a box is simultaneously dead and not dead until the box is opened.