No. W-7405-Eng-48 The cover Test spill of 5 m” of liquefied natural gas (LNG) at the Naval Weapons Center, China Lake, California. Natural gas remains in liquid form only at temperatures below 113K (-160°C). Thus. if the liquid is accidentally spilied in transport, it evaporates rapidly and ex: pandsfar beyond its original volume, forming a About the joumal hazard to anyone or anythingin its path. Some biomedical and environmentalresearch, applied energy technology, and other research activities. horizontal pipe is roughly 2m above the surface of the pond. In tests such as this one, LLNL published monthly to report on accamplish- cloud of flammable vapor that poses a serious sense of the size of the cloud shownin the cover photographs can be obtained by noting that the researchers are trying to amass the data needed to develop computer models of LNG dispersion under various atmospheric conditions. These modeis will help the U.S. Department of Energy provide realistic safety guidelines for the transport and storage of LNG. For further information on this project, see the article on p. 27. The Lawrence Livermore National Laboratory is operated by the University of California for the United States Department of Energy. The Laboratory is one of two nuclear weapons design laboratories in the United Stales. Today more than half of our effort is devoted to programs in magnetic and laser fusion energy, basic physics and chemistry, The Energy end Technology Review is ments in these research and applied technology efforts and on unclassified portions of the weapons program. A’ companion joumal, the Research Monthiy, reports on weapons research and other classified programs. Selected titles from past issues of the Energy and Technology Review are listed opposite the inside back cover. Scientific editors Erik Storm Stein Weissenberger General editors Richard B. Crawlord Kent Madsen Hazel Whiteoak Graphics designer John Schuster mp ap ap an PD Prepared for DOE under contract