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.
Neptune is one of the two planets classified as an ice giant.. Like Uranus, its composition is made up more heavily of ices than the gas giants of Jupiter and Saturn. Neptune's atmosphere is composed predominantly of hydrogen and helium, with traces of methane to create the bluish color.Unlike the terrestrial planets, Neptune and the other gas giants still hold much of the atmosphere they had at their formation. Temperature and pressure shift at different heights.nstead, the gas stretches down to the water-ammonia ocean that makes up the planet's mantle. Scientists have defined the surface of Neptune as the region where the surface pressure is equivalent to the pressure on Earth at sea level. The temperature at this surface is approximately minus 346 F (minus 201 C).