A convection oven uses a powerful fan to circulate hot air, so any food -- roasts, bread and even delicate items like eggs -- cook about 15 percent faster. Classic baked eggs, or oeufs de cocotte, cook to an ethereal consistency in about 6 minutes in a convection, about 4 minutes faster than in a conventional oven.
We can't see a lot of features in Neptune's atmosphere, but the features that astronomers can detect appear to come and go in a hurry. When the Voyager 2 spacecraft flew past Neptune in August 1989, for example, it discovered the Great Dark Spot -- a dark, oval-shaped storm system as big as Earth.
1 Neptune's Great Dark Spot, accompanied by white high-altitude clouds, as seen by a Voyager spacecraft. 2  Different images emphasize the features on Neptune. By tracking features such as the Great Dark Spot and South Polar Feature, astronomers were able to refine measurements of the length of Neptune's day.