
Earlier this week, the government’s Epic Super Laser of Death (which they–less awesomely–call the “National Ignition Facility” or “NIF“) embarked on what may prove to be the most groundbreaking science experiment of modern times. The NIF took made its first bid to capture that great white whale of modern physics: controlled nuclear fusion.
Nuclear fusion–the engine that makes stars run–has never been achieved on earth in a controlled fashion. If fusion power were to be harnessed, it would give mankind the power to tap a vast new source of clean energy, permanently replacing the need for fossil fuels.
During the initial “dry run,” 192 laser beams converged on a 30-foot-diameter metal sphere where they delivered a 1 megajoule jolt to a “peppercorn-sized” pellet filled with hydrogen. The pellet was pulverized, exploding into a burst of neutrons–exactly what scientists expected to happen. During this first run, the laser system was only firing at 75% of its potential power. Further experimental runs throughout the fall will potentially (hopefully) create fusion, thus negating the need to turn off your lights when you leave the house.
NIF’s little star factory is housed in a $3.5 billion, 10-story facility the width of three football fields. It is part of the Lawrence Livermore National Laboratory an hour’s drive east of San Francisco. Scientists have until 2012 to make fusion a reality, because at that point the facilities will be turn over for military use, perhaps to create a literal Death Star.
Like looking at stuff? The Big Picture has a nice photo essay from the NIF.
via inhabitat, Newsweek