Editing Pyrotechnics (section)

==Display pyrotechnics==
{{Main|Firework}}
[[File:NYE melb 2008.jpg|thumb|left|upright=1.1|The 2008-09 Melbourne NYE fireworks, as seen from [[Alexandra Gardens, Melbourne|Alexandra Gardens]]]]
Display pyrotechnics, also known as commercial fireworks, are pyrotechnic devices intended for use outdoors, where the audience can be further away, and smoke and fallout is less of a concern. Generally the effects, though often similar to proximate pyrotechnics, are of a larger size and more vigorous in nature. It will typically take an entire day to set up a professional fireworks display. This work is normally undertaken on temporarily secured locations by specialist companies employing teams of experienced pyrotechnicians.

In modern times a familiar feature of larger fireworks displays are aerial shells, which commonly appear as large spherical bursts of stars in the sky. The exterior of these shells are commonly made of a hard paper-adhesive layered composite which holds the interior stars arranged around a burst charge, or other pyrotechnic effects. Aerial shells are fired out of mortars from the ground and have internal timing fuses that accurately and reliably position their bursts. A continuous sequence of shells are launched, often with effects artistically choreographed to music and themes, accompanied by various types of ground effects. Modern fireworks displays are commonly executed to a designed program using electrical wiring and ignition linked to an electronic firing system. 

The size of these fireworks can range from 50&nbsp;mm (2") to over 600&nbsp;mm (24") diameter depending on the type of effect and available distance from the audience. In most jurisdictions, special fireworks training and licensing must be obtained from local authorities to legally prepare and use display pyrotechnics.