Some discoveries, like Penicillin, happen accidentally. There's even a word for it: serendipity. While careful, scientific procedures did surround most of those, the accidental discoveries sometimes overshadow the original goals of the experiment. Take for example the case of researchers from the University of California Irvine, who embarked on a quest to design a battery that didn't use unstable, flammable liquid. In the process, however, they "accidentally" created a battery that could be charged hundreds of thousands of types without a degradation in its charge.