Here are 5 big unsolved mysteries of science, once again proving we know nothing about our world! Hope you enjoy! :D 15.10.2014 Music: "Frozen Star" Kevin MacLeod (incompetech.com) Licensed under Creative Commons: By Attribution 3.0 http://creativecommons.org/licenses/by/3.0/
Visibility: 83834
Duration: 3m 48s
Rating: 475