[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.
1. Deanâs Blue Hole: Long Island, Bahamas. Â© digitalunderwater.com / Alamy. At more than 650 feet deep, Deanâs Blue Hole is the worldâs deepest sinkhole with an entrance below water. Located in a bay near Clarence Town on the Bahamasâ Long Island, its visible diameter is roughly 82â115 feet.