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.
Bread flour is made from high-gluten hard wheat, pastry flour is made from high starch soft wheat, and all-purpose flour is made from a combination of the two. High-gluten bread flour provides the strength for bread dough to stretch and rise into a high loaf.