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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 ...
A kiloton of TNT can be visualized as a cube of TNT 8.46 metres (27.8 ft) on a side. The "megaton (of TNT equivalent)" is a unit of energy equal to 4.184 petajoules (4.184 × 10 15 J). [3] The kiloton and megaton of TNT equivalent have traditionally been used to describe the energy output, and hence the destructive power, of a nuclear weapon.
TNT, Composition B. Airburst/Tower 20 Calibration test preceding the first nuclear explosion Dahlgren NOL 22 Sept-18 Nov 1952 Dahlgren, Virginia United States 4,200 28 TNT Mk 7 Depth charge Underwater -2.3 to -5.4 Obtain data on the scaling of surface phenomena from shallow underwater explosions and studies of base surge and water formation.
Sycamore, a clean test, was a fizzle, producing only 92 kilotonnes of TNT (380 TJ) instead of the predicted 5 megatonnes of TNT (21 PJ). Poplar was a retest of Sycamore with a predicted yield of 5 to 10 megatonnes of TNT (21 to 42 PJ) and only 200 kilotonnes of TNT (840 TJ) fission yield. The actual yield was 9.3 megatonnes of TNT (39 PJ).
On Thursday, President Joe Biden signed an executive order designating Christmas Eve as a federal holiday for most employees.
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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 ...