Alcohol Consumption and Hypertension. Several mechanisms have been proposed for the relationship between alcohol and elevated BP. An immediate effect of alcohol ingestion is vasodilation in some vascular beds. Sustained intake accompanied by high blood alcohol levels, however, results in short-term elevation of BP.
Uranus is a pale blue in this natural color image because its visible atmosphere contains methane gas and few aerosols or clouds. Blue Orb on the Horizon. 1  A recent NASA Hubble Space Telescope view reveals Uranus surrounded by its four major rings and by 10 of its 17 known satellites.his false-color view of the rings of Uranus was made from images taken by Voyager 2 on Jan. 21, 1986, from a distance of 4.17 million kilometers (2.59 million miles).
Uranus (left) , Neptune (right) , and Earth to the same scale. Methane gives Uranus and Neptune their blue color. Neptune's Great Dark Spot is seen in the center of the Neptune image. Uranus and Neptune both have a blue color.Instead of ammonia clouds, their clouds are made of frozen methane crystals because they are much colder than Jupiter and Saturn.ethane gives Uranus and Neptune their blue color. Neptune's Great Dark Spot is seen in the center of the Neptune image. Uranus and Neptune both have a blue color. Instead of ammonia clouds, their clouds are made of frozen methane crystals because they are much colder than Jupiter and Saturn.