they would explode within ten seconds. The explosion of a bomb may be triggered by a detonator or a fuse. Detonators are triggered by clocks, remote controls like cell phones or some kind of sensor, such as pressure (altitude), radar, vibration or contact. Detonators vary in ways they work, they can be electrical, fire fuze or blast initiated detonators and others, Blast seat In forensic science, the point of detonation of a bomb is referred to as its blast seat, seat of explosion, blast hole or epicenter. Depending on the type, quantity and placement of explosives, the blast seat may be either spread out or concentrated (i.e., an explosion crater). Other types of explosions, such as dust or vapor explosions, do not cause craters or even have definitive blast seats. See also List of bombs References External links Explosive Violence, The Problem of Explosive Weapons A report by Richard Moyes (Landmine Action, 2009) on the humanitarian problems caused by the use of bombs and other explosive weapons in populated areas FAS.org Bombs for Beginners MakeItLouder.com How a bomb functions and rating their power Aerial bombs Chinese inventions