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Delay compositions are used to introduce a delay into the firing train, e.g. to properly sequence firing of fireworks, to delay firing of ejection charges in e.g. model rockets, or to introduce a few seconds of time between triggering a hand grenade and its explosion. Typical delay times range between several milliseconds and several seconds.
In the AHM 780 specification, the two-character numeric-only codes are sent in the DL and EDL elements along with the time assigned to each code (e.g. DL31/62/0005/0015 showing reason 31 for 5 mins and reason 62 for 15 minutes), and the three-character alphanumeric codes are sent in the DLA element (e.g. DLA31C/62A// showing subreason C for ...
Windows 98 has a credits screen Easter egg, which can be triggered by invoking weldata.exe with the argument "You_are_a_real_rascal" in the command line or a shortcut (.lnk file), or by clicking and dragging between the locations of Memphis, Egypt; Memphis, Tennessee; and Redmond, Washington on the Time Zone map.
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Barium chromate – used in delay compositions, e.g. in fireworks rockets Lead chromate – used in delay compositions Potassium dichromate – used infrequently as an oxidizer; can be used as a surface treatment for passivation of magnesium particles, also as a catalyst and in some matches; potassium perchlorate often added
A spolette is a delay fuse consisting of a hollow wooden dowel or a paper tube rammed full of black powder. A spolette is glued into the wall of a fireworks shell and ignited by the lift charge that launches the shell into the air. The spolette, after a delay that allows the shell to reach its top of trajectory, ignites the shell's main effect(s).
The nearly 11-minute video, which is no longer posted on Choi’s social media pages, shows two women shooting fireworks out of the helicopter and toward the sportscar, the affidavit said.
1.4 Consumer Display Rocket. A rocket is a pyrotechnic firework made out of a paper tube packed with gunpowder that is propelled into the air. Types of rockets include the skyrockets, which have a stick to provide stability during airborne flight; missiles, which instead rotate for stability or are shot out of a tube; and bottle rockets, smaller fireworks – 1½ in (3.8 cm) long, though the ...