The relationship between energy and mass came out of another of Einstein's ideas, special relativity, which was a radical new way to relate the motions of objects in the universe. At one level, the equation is devastatingly simple.
Time and Tools. The most obvious difference between a cake and a cupcake is size, which depends on the container in which the dessert is prepared. Cakes are baked in large pans, usually round or square, and take half an hour or more to bake fully. Cupcakes, on the other hand, are baked in tins with several cups. Each cup is much smaller than a large cake pan, so a batch of cupcakes usually takes only about 15 minutes to bake.
Reduce the bake time listed in your cake recipe to the correct amount of time based on the particular size of your muffin pan. You don't need an elaborate mathematical formula to convert bake times for a muffin pan. Instead of starting with the time listed in your recipe, use your pan size as a handy guide. Bake muffins or cupcakes in mini muffin pans for eight to 10 minutes. Place one heaping tablespoon of batter in the pan for each muffin. This size of a pan yields about five dozen muffins or cupcakes.