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.
1/4 inch. 3/4 inch. * Large Envelopes exceed one or more of the letter size maximum dimensions. The maximum size for a flat provides plenty of room to put lots of material in the envelope. But keep in mind that weight usually affects priceâ the higher the weight the higher the postage, especially for First-Class Mail.