The first atomic bomb


At 5:29:45 a.m. local time, on the morning of July 16, the first atomic bomb was detonated in the New Mexico desert, 120 miles south of Santa Fe. The test was made by the United States Army back in 1945

The bomb was mounted atop a 30 meters steel tower built at Trinity, specifically for the test. Researchers believed that detonating the bomb at that height would reduce the amount of radioactive dust raised by the explosion. They were in a way simulating the air-drop method of deployment that was eventually used by the real bombs.


When it detonated, the steel tower on which the bomb sat was vaporized and a huge 40,000 feet mushroom cloud of searing light expanded into the air having the destructive power of 20,000 tons of TNT.

No information on the first atomic bomb test was released until after it was used as a weapon against Japan. The only people outside the US Army that “knew” something had happened were some isolated group from around the test site. The shock broke windows 120 miles away and was felt by many, at least 160 miles away. Army officials only stated that a munitions storage area had accidentally detonated at the Alamogordo Bombing Range.

The leftover crater wasn’t that big and most eyewitnesses describe the area as a slight dent in the earth instead of a crater. The tremendous heat of the explosion melted the desert sand and turned it into a green glass like substance. The scientists called it Trinitite and it can still be seen in the area. After the bomb exploded, Trinitite completely covered the depression, but was deemed a hazardous material and taken away by the Nuclear Energy Commission.

The original 6,000 dollar budget for the Manhattan Project rose to a total cost of 2 billion dollars.

The second and last nuclear weapon ever used in war was called the Fat Man which detonated over Nagasaki, Japan less than a month after the Trinity test. The Fat Man was an exact replica of “Trinity bomb”.

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