For the precision-minded baker or cook: These measuring spoons called Levoons have two clever innovations. Observe: <iframe allowfullscreen="" frameborder="0" height="720" src="https://www.youtube.com/embed/HtL_Ckv_ZgE" width="1280"></iframe> Of my friends who cook, some operate intuitively, i.e. "A dash of this, a pinch of that." Others follow recipes as fastidiously as if they're reading instructions for how to build an ICBM. Levoons are obviously for this latter group. Their design,…