A bison crosses a road ahead of a herd of snowmobilers in Yellowstone National Park in 2003. New federal rules announced Tuesday will further restrict the noise and exhaust such vehicles are allowed to emit inside the park.
The U.S. government Tuesday announced new rules for snowmobiles in Yellowstone that should make the country's oldest national park cleaner and quieter.
The rules were 15 years in the making because of intense wrangling between snowmobile operators and environmentalists. But both groups support the plan and give credit to snowmobile makers for designing cleaner machines.
This undated photo made available by NOAA shows a computer displaying an electronic nautical chart aboard a ship.
The National Oceanic and Atmospheric Administration, the federal agency charged with surveying the nation's navigable waters to help keep mariners off the rocks and out of the shallows, will cease printing paper charts after mid-April.
Originally published on Tue October 22, 2013 6:36 pm
By Adam Frank
Science is unabashedly radical, willing to toss aside established wisdom and ideas to embrace mind-warping new concepts (if the data backs them up). Science is relentlessly conservative, deeply suspicious of new claims and determined to hold firm to cherished truths that have stood the test of time. As strange as it may seem, both these contradictory statements have held true throughout the 450-year history of "modern" science. In fact, they are what have given science the stability and creativity that root its cultural power.
We're used to relying on antibiotics to cure bacterial infections. But there are now strains of bacteria that are resistant to even the strongest antibiotics, and are causing deadly infections. According to the CDC, "more than 2 million people in the United States every year get infected with a resistant bacteria, and about 23,000 people die from it," journalist David Hoffman tells Fresh Air's Terry Gross.
Maybe someday Jerry won't be laughing at George's follicularly challenged scalp. But despite scientific advances there's still no cure for baldness.
Credit NBC / NBC via Getty Images
With a tiny clump of cells from a man's scalp, scientists have grown new human hair in the laboratory.
But don't get too excited. A magic cure for baldness isn't around the corner. The experimental approach is quite limited and years from reaching the clinic — for many reasons.
The scientists have grown the hair only on a tiny patch of human skin grafted onto the back of a mouse. And as wispy locks go, the strands are pretty pathetic. Some hairs were white, and some didn't even make their way out of the skin.
If you've flown across Nebraska, Kansas or western Texas on a clear day, you've seen them: geometrically arranged circles of green and brown on the landscape, typically half a mile in diameter. They're the result of pivot irrigation, in which long pipes-on-wheels rotate slowly around a central point, spreading water across cornfields.
Yet most of those fields are doomed. The water that nourishes them eventually will run low.