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==Explanation==
 
==Explanation==
This comic refers to the {{w|Manhattan Project}} at {{w|Los Alamos, New Mexico}}, where in 1945 their development of the first nuclear weapon had progressed to the point that they were going to explode "The Gadget" at {{w|Trinity Site}}. There was genuine concern that some unexpected result was possible, including the scenario about the atmosphere igniting. The scientists were almost certain that it would either work as expected, or just be a dud, but were unable to rule out several other scenarios. The test proceeded, and it worked as expected.
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This comic refers to the {{w|Manhattan Project}} at {{w|Los Alamos, New Mexico}}, where in 1945 their development of the first nuclear weapon had progressed to the point that they were going explode "The Gadget" at {{w|Trinity Site}}. There was genuine concern that some unexpected result was possible, including the scenario about the atmosphere igniting. The scientists were almost certain that it would either work as expected, or just be a dud, but were unable to rule out several other scenarios. The test proceeded, and it worked as expected.
  
 
The joke part at the end is a reference to a common {{w|mnemonic}} device for basic {{w|trigonometric}} functions, namely identifying the relationships of ''sine'', ''cosine'', and ''tangent'' with respect to the lengths of a right triangle's edges: '''s'''ine = '''o'''pposite over '''h'''ypotenuse, '''c'''osine = '''a'''djacent over '''h'''ypotenuse, and '''t'''angent = '''o'''pposite over '''a'''djacent (in other words, SOH CAH TOA.) "Steve" becomes concerned by the seriousness of the situation, and wants to make sure that he has not made a mistake on stuff that should be ''very'' elementary to a scientist in his position.
 
The joke part at the end is a reference to a common {{w|mnemonic}} device for basic {{w|trigonometric}} functions, namely identifying the relationships of ''sine'', ''cosine'', and ''tangent'' with respect to the lengths of a right triangle's edges: '''s'''ine = '''o'''pposite over '''h'''ypotenuse, '''c'''osine = '''a'''djacent over '''h'''ypotenuse, and '''t'''angent = '''o'''pposite over '''a'''djacent (in other words, SOH CAH TOA.) "Steve" becomes concerned by the seriousness of the situation, and wants to make sure that he has not made a mistake on stuff that should be ''very'' elementary to a scientist in his position.

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