Cultures all over the world incorporate cumin into their cuisine, and it's often mixed with other spices for curry and taco seasoning. These recipes show how cumin's earthy flavor enriches everything from guacamole to vegetables to meat.
As with the shutter speed, the aperture also affects the sharpness of your picture, but in a different way. Changing the aperture changes the depth of field, the depth in a scene from foreground to background that will be sharp in a photograph.
Aperture, therefore, is just a relative measure for the diameter of your lens opening. Lower f-numbers indicate a wider aperture, with f/2.8 and below being the extremes, while higher ones signify that more light is being blocked. One side effect of a wide-open lens is that it lets in a lot of unfocused light rays.