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Cumulative bombing

Cleverly build bunkers can resist any conventional bomb. Only a nuclear bomb can destroy them.

This is annoying for democracy. I've heard some dictatures are building factories inside mountains to produce chemical weapons. They do not fear the destroying of their dead toy because it is rugged against conventional weapons. They are protected by the taboo against the use of nuclear weapons.

What's more, this increases our dependence upon our secret services. They are the sole able to protect us because they can attack those factories from the inside, or slow down their building by special actions and information gathering. As any dutiful secret agent will tell you: too much secret service is bad for democracy. Not to speak with all those unscrupulous politicians that will make us vote for them by using the fear those chemical dictatures inspire us.

I think there is a way to get with conventional bombs the same destruction power as a little atom bomb:
The atom bomb Fat Boy had the power of about thousand tons of TNT. A big bomber can carry about 10 ton of TNT. Thus 100 bombers can carry and drop about one thousand tons of TNT. That's feasible.

A few remarks:
If that doesn't do the job, then use an Energya rocket to launch a steel arrow of a few tons vertically up, further than the geostationary orbit, then let it fall on the bunker at a speed of 9 km/s. An Energya rocket, as well as a Saturn V or a Space Shuttle on the launch pad contains the same amount of energy as a littel A bomb. About 10% of that energy will be transferred into the steel arrow.

(This trick of using several bombs can also be used inside one bomb or block of explosives: a net of detonators will speed up the explosion and increase the destruction power, or will allow to obtain special explosion patterns.)

If a swarm of bombs is dropped around the bunker, rather far from the bunker, only a small part of the shockwave of each bomb will hit the bunker. All the shockwaves hit the bunker at the same time, yet the total energy on the bunker will be a very little part of the energy contained inside each bomb. It is possible to make an important part of the explosion hit the bunker. The way the explosive is placed around the bunker must obey a few mathematical rules : the explosive must be a continuous object around the bunker (at least, the distance between two bombs must be less than half the wavelength of the shockwave), that object must have a size comparable to the distance from the bunker and the explosion of each part of the object must occur at a moment so all the parts of the shockwave hit the bunker at the same time. Such an object could be an explosive fuse placed around the bunker with one of its ends a little closer to the bunker. (The associated wavelength for a classic explosive fuse exploding in the air is about 10 meters, which means the shockwave can be aimed roughly at best at a 10 meters wide surface and it is unnecessary to place the fuse with a precision better than a few meters.) Bellow is an animated .gif sequence of the two-dimensional simulation of such an explosion. The red point in the center shows the target position. The blue hemicircle shows the explosives position. The gray shade shows the height of the ground. Whiter shade means the ground is higher, darker shade means the ground is lower. In this theoretical simulation nearly 50% of the explosion energy concentrates on the target. Only the transversal waves are taken into account. In this simulation all of the explosive is supposed to explode at once. If a very long explosive fuse is used and it is lit at one end, then the other side must be a little closer to the target. In order for the shockwave to be aimed at the target.

The explosives can be placed in several concentric circles around the target. Provided each circle explodes at the right moment, in order to add its shock wave to the shock wave converging towards the target. They can also be spread on a continuous surface around the target, sort of a sheet of explosives. Such a sheet allows to aim the shockwave tridimentionnaly. For example towards a bunker buried deep below the surface.

This can be applied to numerous other domains, even politics or economics, in three or more dimensions. A simple implementation would for example be to electronically link the triggers of assault riffles of a squad to the trigger of the leader's riffle. If all are aiming at the same spot... A variant would be to detect the resonance frequency of the target, using a radar, a laser or a microphone and make a machine gun shoot at the appropriate rate.

Eric Brasseur  -  March 9 1997 till December 19 2008