66.2 MB (5.5 MB compressed)
5457 x 4240 pixels
46.2 x 35.8 cm ⏐ 18.2 x 14.1 in (300dpi)
CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY
Fireworks in their retail packaging. Fireworks are designed to produce loud explosions and displays of coloured light. Gunpowder usually creates the explosion, while the heat and energy cause metal chlorides and oxides to glow and provide colours (strontium, red; barium, green; copper, blue; sodium, yellow; calcium, orange). Sparks are created by the use of flakes and dust of metals, such as aluminium or iron.
Model release not required. Property release not required.