Kako upaliti zvijezdu?

Recipe for a Small Star
Take a hollow, spherical plastic capsule about two millimeters in diameter (about the size of a small pea)
Fill it with 150 micrograms (less than one-millionth of a pound) of a mixture of deuterium and tritium, the two heavy isotopes of hydrogen.
Take a laser that for about 20 billionths of a second can generate 500 trillion watts – the equivalent of five million million 100-watt light bulbs.
Focus all that laser power onto the surface of the capsule.
Wait ten billionths of a second.
Result: one miniature star.

In this process the capsule and its deuterium-tritium (D-T) fuel will be compressed to a density 100 times that of solid lead, and heated to more than 100 million degrees Celsius – hotter than the center of the sun. These conditions are just those required to initiate thermonuclear fusion, the energy source of stars.

By following our recipe, we would make a miniature star that lasts for a tiny fraction of a second. During its brief lifetime, it will produce energy the way the stars and the sun do, by nuclear fusion. Our little star will produce ten to 100 times more energy than we used to ignite it.



National Ignition Facility Homepage: https://lasers.llnl.gov/
Članak u Wired-u: http://www.wired.com/science/discoveries/news/2009/05/gallery_nif

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