An international team has developed spherical colloidal particles for the visualization of rotational dynamics. The two-color fluorescent particles have an off-center core that allows tracking of ...

All forms of tobacco cause cardiovascular disease, and tobacco-related disease is a leading cause of death worldwide. Smoking oxidizes low-density lipoprotein (LDL) particles, and oxidized LDL ...

Pollutant particles with a smaller diameter, density, and flow rate can enter the deep lung, but large particles with a low density may also enter the deep airways, according to a study. Researchers ...

Nuclear physicists proposed a method to measure the speed of sound characterizing matter created in nuclear collisions. Heavy nuclei consist of hundreds of protons and neutrons (belonging to a group ...

Under the right conditions, sand can flow. When heavier grains are placed atop lighter grains in a container, the less dense grains can burble upward like the blobs of a lava lamp, a study finds. The ...

"If axion clouds, and thereby axions, are discovered, this would be a massive step toward solving the dark matter problem." When you purchase through links on our site, we may earn an affiliate ...