Cameras and Tests. The three webcams I compared were the embedded webcam on my HP EliteBook 8760w; the Logitech HD Webcam C615, an external unit you can buy for under $40; and the Logitech Broadcaster, an external unit that costs around $200 (Figure 1, below).
Special cake flour with a high starch-to-gluten ratio is made from fine-textured, soft, low-protein wheat. It is strongly bleached, and compared to all-purpose flour, cake flour tends to result in cakes with a lighter, less dense texture.
All flours are composed largely from starch and protein, but wheat flour is distinctive in that it has very high levels of a class of proteins known collectively as gluten (8 - 14%). When a dough is made from wheat flour and water, the gluten develops into a thick, cohesive, elastic mass.