Physics Girl - YouTube
Physics Girl is a YouTube channel created by Dianna Cowern that adventures into the physical sciences with experiments, demonstrations, and cool new discover...
Overview
Added
March 18, 2026
Subject & domain
physics · kinematics
Grade range
Grade 7–Grade 12 (Senior)
Page kind
Video
Keywords
physics experiments fun
Introduction
In Memoriam: William “Bill” Cowern
- Personal Loss: Dianna Cowern (Physics Girl) announced the passing of her father, William “Bill” Cowern, who died unexpectedly two days prior to the post.
- Background: Bill Cowern was a former Vietnam War helicopter pilot in the Marines and a dedicated tree farmer in Kauai, Hawaii, where he was known as “The Tree Man.”
- Influence: He was a central figure in Dianna’s life, credited as the primary inspiration for her interest in science, math, science fiction, and her career in science communication.
- Legacy: He was remembered for his humor, warmth, curiosity, and hospitality, as well as his frequent appearances in Physics Girl videos, including stories about being struck by lightning twice.
- Family: He is survived by his wife, five children, and his extended family.
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