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Each block was carefully fitted into a pre-calculated position to approximate a perfect hemisphere. [3] When completed the stack measured 34 feet (10 m) in diameter. [2] Columns were drilled 80 feet (24 m) into the ground at the blast site and then back filled with a coloured soil mix to measure the expected horizontal and vertical displacement.
The video game Minecraft released a version of Minesweeper in its 2015 April Fool's update. [13] The HP-48G graphing calculator includes a variant called "Minehunt", where the player has to move safely from one corner of the playfield to the other. The only clues given are how many mines are in the squares surrounding the player's current ...
A shaped charge is an explosive charge shaped to focus the effect of the explosive's energy. Various types are used to penetrate tank armor; typical modern lined shaped charge can penetrate steel armor [ clarification needed ] to a depth of seven or more times the diameter of the charge (charge diameters, CD), though greater depths of 10 CD and ...
TNT equivalent is a convention for expressing energy, typically used to describe the energy released in an explosion.The ton of TNT is a unit of energy defined by convention to be 4.184 gigajoules (1 gigacalorie), [1] which is the approximate energy released in the detonation of a metric ton (1,000 kilograms) of TNT.
Memorable Events/Puzzles: A puzzle that used an interactive Virtual Earth map to locate items hidden on campus (two members of the organizing team had to fly an airplane over the Microsoft campus with a high-resolution digital camera to get the level of detail down to 3 cm per pixel, allowing each puzzle answer to indicate a 6-foot square ...
The test is performed by loading a 10-gram foil-wrapped sample of the explosive into a hole drilled into a lead block with specific dimensions and properties (a soft lead cylinder, 200 mm diameter and 200 mm high, with the hole 125 mm deep, and 25 mm diameter). [1] The hole is then topped up with sand, and the sample is detonated electrically ...
Log–log plot comparing the yield (in kilotonnes) and mass (in kilograms) of various nuclear weapons developed by the United States.. The explosive yield of a nuclear weapon is the amount of energy released such as blast, thermal, and nuclear radiation, when that particular nuclear weapon is detonated, usually expressed as a TNT equivalent (the standardized equivalent mass of trinitrotoluene ...
detection rate of explosives and/or explosive precursor components; the false positive rate; the effective range; the detection depths in various soils; foliage penetration capability; type of explosive and/or explosive precursor component that the system is capable of detecting (metal, non-metal, radio controlled, etc.) impacts of different ...