SLINK SLINGING
Some accidents are meant to happen. When the Kellogg Brothers—Dr John Harvey and his younger brother (and former broom salesman) Will Keith Kellogg—overbaked some boiled wheat dough at the Battle Creek Sanatorium in Michigan in 1894, they invented Corn Flakes. When Dr David Spencer invented an impermanent adhesive (while attempting to create the exact opposite, a super-strong adhesive) at the Minnesota Mining & Manufacturing plant in 1968, he invented Post-It notes. And after