droplet

Ordinarily, person-to-person transmission of a flu virus “is mainly through the air from droplets from a sneeze or cough, which contains very little virus,” Paulson said.

Within the rock, the researchers also found evidence of the two major impacts in the form of thousands of tiny droplets of glass, or silica.

This increase promotes ice nucleation in clouds in the lower troposphere, weakening the efficiency of clouds to contain more liquid droplets and fewer ice crystals as the Arctic warms.

The crystals' narrow and light-translucent structures enable researchers to monitor the collection and condensation of fog droplets in real time by using light.

That seesawing piano riff on the soundtrack could be rain droplets or an improvisatory theme for a couple lolling around an open-air market trying on sunglasses.