Crashing Black Holes Explained (VIDEO) California Institute of Technology This video is under embargo. Please login to access this video. Caption Caltech graduate student Keefe Mitman explains a new mathematical model of black hole collisions that contains nonlinear gravitational effects--a phenomenon he compares to what happens when two people jump wildly on a trampoline. Credit Caltech Usage Restrictions No restrictions. License CC0 Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.