Free Republic

Okay, but what exactly is a gravitational wave and how could they help us crack the conundrum of the black hole code? A gravitational wave is akin to a ripple in space-time. Albert Einstein predicted that massive bodies changing speed or direction generate these gravitational waves. Picture bodies like a pair of black holes orbiting each other. This then creates a gravitational wave that ripples outwards, like a disturbance in a still pool of water after a leaf has dropped onto its surface and ripples are sent across the surface. Like star-crossed lovers, the black holes of two merging galaxies...

Fifteen years from now, 28,000 trucks a day, many of them hauling double or triple trailers, may be speeding up and down special truck lanes on Virginia’s Interstate 81, belching tons of carbon monoxide into the Shenandoah Valley each year. Proponents of “toll truckways,” such as the influential libertarian Reason Foundation think tank, believe they are the wave of the future and the answer to the nation’s transportation needs. Today, trucks on the four-lane I-81 account for as much as 40 percent of total traffic, thanks in part to the North American Free Trade Agreement. The road, which has become...