SCIENCE PHOTO LIBRARY MOTION SCIENCE PHOTO LIBRARY MOTION
High-speed footage of soap bubbles containing hydrogen being ignited. Hydrogen gas (H2) is much less dense than air, so the bubbles rise quickly. It is also highly flammable, and reacts rapidly with the oxygen in the surrounding air, forming water. Filmed at 2000 frames per second (slowed down 80 times).
Model release not required. Property release not required.