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Word: megatonic (lookup in dictionary) (lookup stats)
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...June 19, 1968 the asteroid Icarus, which is nearly a mile in diameter, will crash into the mid-Atlantic, 2,000 miles east of Florida. Its impact - the equivalent of a 500,000-megaton bomb blast - will splash out some 1,000 cubic miles of sea water and form a crater 15 miles across in the ocean floor. Tidal waves 100 ft. high will sweep across coastal cities on both sides of the ocean, and earthquakes 100 times worse than any ever recorded will be felt all over the world. Clearly, Icarus must be stopped. No expense will be spared...

Author: /time Magazine | Title: Systems Engineering: Avoiding an Asteroid | 6/16/1967 | See Source »

...amount of uranium 238 in the outer layer of ABM warheads and add more tritium, which raises the temperature of the blast, to the fissionable material. As a result, nearly 80% of the energy released by the explosion of the new warheads, believed to be in the one-megaton range, is in the form of high-energy X rays. To extend the lethal range of these rays, which are quickly absorbed or attenuated when traveling through air, the ABM warhead will be carried high above the atmosphere by the new Spartan missile and exploded in space in the vicinity...

Author: /time Magazine | Title: Nuclear Physics: How to Zap an ICBM | 5/26/1967 | See Source »

...instant of the nuclear explosion (which lasts only five ten-millionths of a second), X rays traveling at the speed of light emanate from the center of the blast. Although their effect diminishes sharply at increasing distances even in the vacuum of space,* the X rays from a one-megaton blast are intense enough to destroy an ICBM caught within a sphere extending two miles from the exploding ABM warhead...

Author: /time Magazine | Title: Nuclear Physics: How to Zap an ICBM | 5/26/1967 | See Source »

...only a small portion of X-ray energy is used to form the plasma sheath. Most of the remainder is converted into a shock wave that races through the missile. At a distance of two miles, the impact of the shock wave on a 6½-ft. dia. 30-megaton warhead would be equivalent to the explosion of 2 or 3 Ibs. of TNT within the missile, which may be enough to set off some of the lens-shaped charges of conventional explosives inside (see diagram). These, in turn, would cause the remaining lens-shaped explosives to detonate. Because...

Author: /time Magazine | Title: Nuclear Physics: How to Zap an ICBM | 5/26/1967 | See Source »

...lead held until the third quarter. Eli quarterback Dave Henley, wasn't moving well in short spurts, so he went to the 20-megaton pass. Henley hit Earl Downing for a 53 yard TD. The quarterback carried around the left for the two point conversion...

Author: By Joel R. Kramer, | Title: Freshmen Topple Yale in Football, Soccer | 11/19/1966 | See Source »

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