Science news articles about 'density variations'

... the seeds for subsequent stars to come into being. According to their simulation, gravity acted on minute density variations in matter, gases, and the mysterious "dark matter" of the universe after ...

... quivering, liquid-like blob where density variations caused sound waves (pressure ... two marks in the now-transparent sky. Variations in the temperature of the radiation that filled the early universe ...

... the tumor but also the surrounding tissue. The paper summarizing their results, "Gold Nanoshell Density Variation with Laser Power for Induced Hyperthermia," is published in the January issue of the ...

... and between each state, such as car volume density, population density, variations in fleet sizes, the types of vehicles on the road, vehicle quality (newer vehicles versus older vehicles), ...

... galaxies with extraordinary spectral resolution – precision that would allow the study not just of density variations of galaxies but in the hydrogen gas that fills the universe, something JDEM could ...

... a small amount from place to place. Factors such as mountains, ocean trenches, and interior density variations can all cause gravity differences. By measuring the gravity field of Earth or another ...

... on its way to generating data of unprecedented precision on two million galaxies and quasars, and density variations in the intergalactic gas. The SDSS tradition of releasing data to the public will ...

... the mission in 1998, says: "The temperature and salinity of the water in the oceans determine its density, variations in which are important in driving ocean currents. We've been making salinity ...

... development of new techniques for global ionospheric remote sensing and new models of global electron density variation." Models being developed include the Global Assimilation of ...