[noncount] : a quality that makes you continue trying to do or achieve something that is difficult. 1  What he lacked in talent he made up for in determination. 2  dogged/fierce/steely/stubborn determination.
The first modern solution of general relativity that would characterize a black hole was found by Karl Schwarzschild in 1916, although its interpretation as a region of space from which nothing can escape was first published by David Finkelstein in 1958.
these 10 animal facts will amaze you the deepest hole ever drilled is the kola superdeep borehole on the kola peninsula in the northwest corner of russia located near finland it was drilled for scientific research by the ussr