Ross Ice Shelf - Some ObservationsThe Ross Ice Shelf is the largest ice shelf in the world with an area of roughly 182,000 square miles - 472,000 square kilometers. The shelf was named after Captain James Clark Ross who discovered it January 28th, 1841. The coast to which the ice shelf is attached reaches nearer to the south geographic pole than any other part of Antarctica's coast.
Image source: NASA/MODIS Antarctic mosaic.
Sugar-sweetened beverages (fruit drinks,soda) are associated with higher blood pressure levels in adults, according to a report in Hypertension: Journal of the American Heart Association.
In the International Study of Macro/Micronutrients and Blood Pressure (INTERMAP), for every extra sugar-sweetened beverage drunk per day participants on average had significantly higher systolic blood pressure by 1.6 millimeters of mercury (mm Hg) and diastolic blood pressure higher by 0.8 mm Hg. This remained statistically significant even after adjusting for differences in body mass, researchers said.
Early in the formation of the Earth, some forms of the element chromium separated and disappeared deep into the planet's core, according to a new study in Science.
The team studied a class of meteorites called chondrites, which are leftovers from the formation of the solar system more than 4.5 billion years ago. By making very accurate measurements of chromium isotopes in the meteorites compared to Earth rocks and comparing them to theoretical predictions, the researchers were able to show for the first time that lighter isotopes of chromium preferentially go into the core. From this the team inferred that some 65 percent of the missing chromium is most likely in the Earth's core.
