That is to say, the lesson of the QWERTY story remains the resilience of a design created for an outmoded technology's dictates. QWERTY is still an example of technological momentum. But the development of the design wasn't accidental or silly: it was complex, evolutionary, and quite sensible for Morse operators.
The Half Sheet cake is approximately 11 X 15 inches in size and is typically one layer thick but may come in single or multiple layers if a filling is added. Source(s): http://www.usabirthdays.com/delivery/cak...
Most bakeries in the U.S. have three standard sizes of sheet cakes available. 1  1/4 Sheet Cake, 9â³ x 12â³, serves 12-28. 2  1/2 Sheet Cake, 11â³ x 15â³, serves 18-40. 3  Full Sheet Cake, 18â³ x 24â³, serves 48-108.his diagram shows a 9 x 13 cake cut into 21 pieces. Each serving measures 1.8 x 3. While those are the standard sizes, there is only one way to be 100% how big the âhalf sheet cakeâ your baker is making is: ask.