I measured Planck's constant at home

This is a simple at-home experiment you can do to prove light is a particle, and measure Planck's constant (the fundamental constant that sets the scale of quantum mechanics). KiwiCo delivers hands-on projects that make learning fun. Get 50% off your first crate with code LOOKINGGLASS at https://www.kiwico.com/lookingglass Animations by the extremely talented Kathy Sarpi! https://kathysarpi.com