NewsgalleryWhat happens when ping-pong balls and liquid nitrogen collideBookmarkShareNewsByJamie FergusonUS Picture Editor & Music Writer19:28, 6 AUG 2015Updated08:53, 7 AUG 2015 (Image: Plymouth University)1 of 7 (Image: Plymouth University)2 of 7 (Image: Plymouth University)3 of 7 (Image: Plymouth University)4 of 7 (Image: Plymouth University)5 of 7 (Image: Plymouth University)6 of 7 (Image: Plymouth University)7 of 7