Word: shield
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...Spartan's explosion. Within an area of a few miles, the X rays would penetrate the incoming warhead's heat shield, wreck its circuitry and defuse its trigger mechanism...
There is even dispute over ABM's likely adversary. Sentinel has long been billed as a "thin" defense, suitable only against a Chinese attack. Yet some of its strongest supporters?and critics?view it as the beginning of a "thick" shield to counter Russian strength. One point seems certain: if Washington and Moscow decide to invest heavily in ABMs, the world will see a new watershed in nuclear weaponry...
Slumping into the rear seat, he was still wiping his eyes when he heard an ominous click: up front, behind his bulletproof plastic shield, the driver had flicked a switch that locked both rear doors electrically to prevent passengers from taking off before paying the fare. "Where to, fella?" asked a voice from a loudspeaker overhead. John told him. The trip to the office was uneventful, until John put his $10 bill in a revolving tray in the partition and got back change for $5. When he pounded on the plastic and protested, the amplified voice informed him that...
When faced with expensive, unplanned additions, such as locks on all individual rooms, Radcliffe often falls behind the shield of insufficient funds. Safety should not be evaluated financially, but even so, increased security forces would not be very expensive...
Houbolt argued that the concept would save an immense amount of fuel. Because the lunar lander would not need a heavy heat shield for a return through the earth's atmosphere and would not have to carry additional equipment and supplies for the long trip to and from the moon, it could be tens of thousands of pounds lighter than other lunar landing vehicles. The weight reduction would be great enough, he calculated, for the entire mission to be launched by one Saturn 5-type rocket...