The Shell oil drilling rig that ran aground off Alaska last week is now anchored in a quiet harbor so divers can assess the damage. Wildlife officials say they have seen no evidence of a spill from the vessel, which was carrying tanks of diesel fuel. But the accident does raise questions about Shell's plans to drill for oil in the remote and fragile ecosystem of the Arctic.
Originally published on Mon January 7, 2013 5:52 pm
By Allison Aubrey
It's become an annual tradition: bidding up an outrageous price for a Pacific bluefin tuna during the first auction of the new year at Toyko's Tsukiji fish market.
And on Saturday, a bluefin tuna big enough to serve up about 10,000 pieces of sushi fetched a mind-boggling price: $1.76 million. That's about three times as much as last year's tuna and equates to about $3,600 per pound for the 489-pound fish.
NASA is facing a conundrum of large proportions; shuttle-sized, in fact. Now that the shuttle program has ended, NASA is no longer using shuttle facilities and equipment. That includes everything from a launch pad to space in the building where rockets were assembled. So NASA is conducting a secret auction. Orlando Sentinel staff writer Scott Powers explains what NASA is selling, why, and who the buyers might be.
Scientists have cooled potassium gas to one billionth of a degree below absolute zero. But in the quantum world, that's actually hotter than the Sun. It's hotter, even, than infinity degrees Kelvin. Vladan Vuletić, a quantum physicist at MIT, talks about this 'Bizarro World' temperature.
Cold-water fish, snow-dwelling bugs and some grasses have evolved natural antifreeze proteins to avoid turning to ice cubes. Peter Davies, a biologist at Queen's University in Ontario, discusses how these antifreeze substances work, and their applications for human problems--like keeping the ice out of ice cream.
In Full Planet, Empty Plates: The New Geopolitics of Food Scarcity, Lester Brown says the world's food supply is tightening, and the reasons are many. People in developing countries are eating more meat, a grain-intensive food; farmers are overpumping, causing water tables to fall; and crop yields have plateaued, despite technological advances.