Bentley saw snowflakes, in all their complexity and diversity. He is considered a pioneer in the field of photomicrography (taking images of objects under a microscope) and helped spark scientific interest in understanding the crystal structure of snow. His photographs gave way to research on the atomic structure of water, the intricacies of weather and the conditions that affect how crystals grow. He is credited with discovering that, at least in nature, no two snowflakes are exactly alike.
"The Man Who Uncovered the Secret Lives of Snowflakes" is from the January 11, 2017 Speaking of Science section of The Washington Post. It was written by Sarah Kaplan and narrated by Sam Scholl.