The explosion of a nuclear weapon at such a height that the expanding fireball does not touch the earth's surface prior to the time the fireball reaches its maximum luminosity. The airburst reported in this document resulted from the detonation of a device fired from a 280mm cannon.
A device consisting of a packet of pyrotechnic powder, an electric match, and in some cases small pyrotechnic stars designed to simulate aerial fireworks when suspended in the air.