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.
Atmospheric composition. Neptune's atmosphere is made up predominately of hydrogen and helium, with some methane. The methane is part of what gives Neptune its brilliant blue tint, as it absorbs red light and reflects bluer colors. Uranus also has methane in its atmosphere, but has a duller shading.Something else must be contributing to Neptune's hue, but scientists aren't certain what. The planet has ten to a hundred times more methane, ethane, and ethyne at its equator than it does at its poles.he clouds of Neptune vary with the altitude. Cold temperatures allow methane clouds to condense in the highest layers of the atmosphere. Scientists think that clouds made up of ammonia and hydrogen sulfide exist at higher pressures.