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...
Sheet pans come in different sizes, thus the dimensions of a sheet cake also vary. Commonly, there are three sheet cake sizes: the full sheet, the half sheet, and the quarter sheet. If you go check out and try to buy sheet cake pans, you will discover that there doesnât seem to be a fixed size for those three.