![]() Even if such a detonation were to occur near dawn over Detroit, out of line of sight because of the Earth's curvature, enough light could well be scattered and refracted by atmospheric effects for it to be observed as a glare in the sky from Washington, D.C. ![]() So great is the amount of light and heat generated by a 1-Mt airburst, that if one were to occur at a high enough altitude over Baltimore, observers in Washington, D.C., might see it as a ball of fire many times brighter than the noonday Sun. During the period of peak energy output, a 1-megaton (Mt) nuclear weapon can produce temperatures of about 100 million degrees Celsius at its center, about four to five times that which occurs at the center of the Sun.īecause the Sun's surface is only about 6,000☌ and it heats the Earth's surface from a range of more than 90 million miles (about 145 million kin), it should be clear that such a nuclear detonation would be accompanied by enormous emanations of light and heat.
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