1. They feed by collecting tiny particles from the water. 2. After the sugar is ground to dust, it is sifted through a series of meshes to collect the particles by size. 3. In the past, Patterson has worked with the government to develop better detection devices for anthrax, including a hand-held device to collect biological particles and analyze them. 4. Since it dries faster than varnish, it is less likely to collect dust particles as it cures, so it needs less sanding and rubbing. 5. Trapped particles were collected periodically over the seven-year study period and analyzed to determine organic carbon content. 6. An overheated battery on a NASA spacecraft may curtail a mission to collect particles from the sun for return to Earth. |