We can only hope that some of the weirder discoveries by humans were made by a complete mistake. There is some truth to the idea that many of the things we take for granted today were accidental discoveries. Humans are, of course, incredibly clever, but sometimes it’s as if the world simply hands us what we need when we’re not exactly intending such results.

Sometimes, those accidental discoveries are the coolest of them all. We’ve rounded up some of the most interesting DIY scientific “experiments” – and their results – in this slideshow.