Finding the Flavor of Chocolate. Gregory Ziegler puts a small block of chocolate into a styrofoam bowl and sticks it into the microwave. Soon, a lovely sweet aroma spreads through the air, lending warmth to the otherwise bleak lab. Ziegler takes the bowl out of the microwave; it's filled with a thick, swirling liquid.
First Class Large Envelope/Flat Mail. Minimum size: 6 1/8 inches tall or 11 1/2 inches long and 0.007 inches thick. Maximum size: 12 inches tall x 15 inches long and 3/4 inches thick. Maximum weight: Up to 13 oz.
Pieces over 13 ounces can be sent as Priority Mail. The minimum size for First-Class Mail is 5 inches long, 3-1/2 inches high, and 0.007 inch thick. Pieces weighing 1 ounce or less may be subject to the nonmachinable surcharge.he letter dimensions are 6 1/8 inches high by 11 1/2 inches long by 1/4 inches thick. The maximum size of a large envelope is 12 inches high by 15 inches long by 3/4 inches thick. A surcharge applies to pieces weighing 1 ounce or less.