Multimedia Gallery
June 12, 2020
Images and other media in the National Science Foundation Multimedia Gallery are available for use in print and electronic material by NSF employees, members of the media, university staff, teachers and the general public. All media in the gallery are intended for personal, educational and nonprofit/non-commercial use only.
Videos credited to the National Science Foundation, an agency of the U.S. Government, may be distributed freely. However, some materials within the videos may be copyrighted. If you would like to use portions of NSF-produced programs in another product, please contact the Video Team in the Office of Legislative and Public Affairs at the National Science Foundation.
Additional information about general usage can be found in Conditions.
Sneezin' in the Rain | Why do we SNEEZE after RAINSTORMS?
Everyone with seasonal allergies is familiar with how troublesome pollen grains can be, but new research from the University of Iowa unveils just how insidious fragmented pollen can be. Since pollen grains can break up in high humidity, during storms they are swept up into the storm’s updraft and then fragment. The fragments are way smaller -- sometimes about 1/10th of a grain. These ultralight fragments go flying and get blown back downward with the rain—but unlike pollen grains, which settle to the ground, pollen fragments remain in the air.
Credit: National Science Foundation/University of Iowa
Images and other media in the National Science Foundation Multimedia Gallery are available for use in print and electronic material by NSF employees, members of the media, university staff, teachers and the general public. All media in the gallery are intended for personal, educational and nonprofit/non-commercial use only.
Videos credited to the National Science Foundation, an agency of the U.S. Government, may be distributed freely. However, some materials within the videos may be copyrighted. If you would like to use portions of NSF-produced programs in another product, please contact the Video Team in the Office of Legislative and Public Affairs at the National Science Foundation.
Additional information about general usage can be found in Conditions.