Word: transition
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...space designers, who like to keep hardware light, but unavoidable all the same. (On the surface of Mars, tanks of water or even dirt berms could serve the same protective purpose.) The best way to limit the radiation dose on the way to Mars is simply to limit the transit time, and that means improving on the conventional engines all spacecraft have carried up until...
...hurl tons toward Mars using current technology, why not take a decade--or two decades, or however much time is required--researching new launch systems and advanced propulsion? If new launch systems could put weight into orbit affordably, and if advanced propulsion could speed up that long, slow transit to Mars, then the dream of stepping onto the Red Planet might become reality. Mars will still be there when the technology is ready...
...transportation policy. As Big Dig construction winds down and Boston drivers fully enjoy a snazzy new highway system on their fellow taxpayers’ dime, less fortunate mass commuters must now pay 25 percent more for every ride they take out of their own pockets. The Massachusetts Bay Transit Authority (MBTA) has invoked a variety of excuses for the fare increase, but those who ride the T to work every day know that the idea is an ironic—if not sinister—redistribution of costs from relatively affluent motorists onto the less well-off regulars of public...
...Massachusetts Bay Transit Authority (MBTA) raised fares for its subway, bus and commuter rail systems on Jan. 3, leaving some riders inconvenienced and annoyed...
...nonsense doesn't stop there. The Pentagon policy was plainly designed to reward those countries that have supported the war and punish those that have opposed it. (Let us gloss over that Turkey, which would not let U.S. troops transit to Iraq, is on the approved list, while Canada, which has sent cash to Iraq, and Germany, which has offered to train a new Iraqi police force, are not.) That, it appears, is the "essential security interest" that justifies limiting competition for these contracts. So you might suppose that it is similarly in the national interest to limit those that...