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).
The methane in the atmosphere of Uranus and Neptune is what causes their colors to appear blue-green and bright azure blue respectively. When the sunlight is applied to a surface it can reflect light back, but since methane is present it absorbs the red light of the light spectrum, thus the only light being reflected is the blue and green light.