How would the bombs in Tremors 2: Aftershocks blow up underground?
In the sequel to the original movie, Tremors 2: Aftershocks, Earl Basset and team resort to a very strange method of killing graboids.
A piece of dynamite or other explosive is placed on a remote-controlled toy car. As the car moves, the sound attracts the graboids and they supposedly gobble it up. Once they have eaten the car, a detonator with the hunters is operated and the bomb explodes inside the graboid, killing it.
I have two, perhaps, silly questions.
- How can a bomb that can sometimes be scratched/damaged from pressure, in a creature's belly, underground, be signalled with an overground detonator?
- Even if the signal could get through, how would the bomb explode underground, in the absence of any oxygen?
Best Answer
Let's start with..
How would the bomb explode underground, in the absence of any oxygen?
Bombs don't require oxygen to explode, they just need an explosive material and some form of detonator. Fire requires oxygen to continue burning but explosive materials do not.
An explosive material, also called an explosive, is a reactive substance that contains a great amount of potential energy that can produce an explosion if released suddenly, usually accompanied by the production of light, heat, sound, and pressure.
Explosive materials may be categorized by the speed at which they expand. Materials that detonate (the front of the chemical reaction moves faster through the material than the speed of sound) are said to be "high explosives" and materials that deflagrate are said to be "low explosives". Explosives may also be categorized by their sensitivity. Sensitive materials that can be initiated by a relatively small amount of heat or pressure are primary explosives and materials that are relatively insensitive are secondary or tertiary explosives.
On to
How can a bomb that can sometimes be scratched/damaged from pressure, in a creature's belly, underground, be signalled with an overground detonator?
There's a certain amount of "plot magic" here but the bombs aren't really under any pressure underground since they have been swallowed whole.
As for the radio signals, it's true that these don't propogate very far underground, usually just a few feet but, in this case, that's exactly how deep the graboids are. You can tell since the explosions make it to the surface with relatively small amounts of explosive per device
Pictures about "How would the bombs in Tremors 2: Aftershocks blow up underground?"
Where was Tremors 2 filmed at?
Filming took place near Valencia, California in a total of 27 days in early 1994. The film was also released straight-to-video with only a limited theater release.Is Kevin Bacon in Tremors 2?
Tremors II is one of the best direct-to-video sequels that has ever been made\u2026 but when it was first being developed, the plan for it was to go theatrical, with Kevin Bacon and Reba McEntire reprising the roles of Valentine McKee and Heather Gummer, respectively.How many graboids are in Tremors 2?
The humans flee to a relatively safe distance and the entire refinery is leveled by a massive blast, killing all the Shriekers and leaving a huge crater. As they survey the remains, Grady cheerfully points out just how much bounty money they now have coming to them: 28 dead Graboids making $1,400,000.I Am Completely Out Of Ammo! | Tremors 2: Aftershocks
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: cottonbro, cottonbro, cottonbro, Yan Krukov