The chemist August Kekulé was contemplating how benzene organized its 6 carbon and hydrogen atoms. Thinking in regards to the problem, he dozed off, and dreamt of dancing atoms that fell into a snakelike sample, which led him to find out the benzene ring. As Kekulé wrote in his diary, https://andyizluo.wssblogs.com/28752330/the-smart-trick-of-disruptive-innovation-that-no-one-is-discussing