Creative Speculation
In reply to the discussion: The Great Thermite Debate... [View all]intaglio
(8,170 posts)for bulk use such as demolition does not exist. One shot dets for the military do.
What you are implying is that your non-existent, high tolerance dets with encryption would not be microprocessor based - yeah, right.
You also ignore the fact that microprocessors cannot stand long term exposure to high temperatures such as above a fire and neither do batteries. Your radio controlled dets are a complete figment of someone's deranged imagination.
Landing aircraft. Centimeters or feet depending on your source. Actually 10 feet is not a lot because the aircraft sink rate on approach is pretty low and aircraft shocks take much of the impact. If you think auto control is accurate have a look at the landing apron of any major airport and see the varying start points of the tire marks. Oh and where on the Twin Towers was the Doppler radar and landing beacon?
1) Thermite has been in use for 120 years.
2) It is not an explosive it is a slow pyrotechnic reaction similar to, but slower than, black powder.
3) It is well understood.
4) It cannot be used in demolition because of the long burn times. An error of 1% on the cutting time of a thermite charge would result in a variation of more than 1 second between the the completion of the cuts. This would result in an out of sequence collapse and the structure not falling in the footprint required. Contrast this with a a conventional charge where the variation would be measured in nanoseconds. Typically a demolition sequence cannot stand out of tolerance cuts of greater than about 100 microseconds - and that would be pushing it.
5) The cutting time of the thermite charge would depend on how the ignition propagated and on the precise make up of the item being cut. Even in the most high tolerance metals there is a lot of variation of both composition, thickness and crystalisation.
Your belief that the limitations of the materials and devices can be overcome just by wishing the problem away is frantic and irrational.