Word: tunnelled
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...which is four times as much weight as modern, specially strengthened storage buildings are designed to carry. A few weeks back, a 40-lb. chunk of stone plummeted from the facade to the ground below; now Congressmen and visitors have to walk through a protective wooden tunnel, hardly in keeping with the dignity of the building, to get to the main entrance...
According to plans now favored by the MBTA, the Harvard extension would pass a tunnel under Radcliffe Yard and near a Loeb Drama Center. University officials have expressed concern over the ate, and have asked that the extension designed to eliminate any noise and vibration effects that the new tunnel might have on Harvard and Radcliffe buildings...
...tunnel would then cross the Cambridge Common, continue up Massachusetts Ave, until Porter Square, where there would be a stop...
Since the Berlin Wall went up in August 1962, at least 69 persons have died attempting to scale it. But 3,510 refugees have managed to slip through it, tunnel under it or scramble over the top. Three weeks ago, work began on a higher, sleeker model. Virtually complete last week was a new 250-yd. section near the old Reichstag. Atop the 12-ft. structure, engineers placed lengths of circular pipe denying any potential climber a handhold...
Backbone of Stanford's linear accelerator (called SLAC) is a 10,000-ft.-long, 4-in.-diameter copper tube housed in a concrete tunnel and buried 25 ft. underground to protect scientists and any bystanders from its fierce radiation. At one end, an electron beam is generated in much the same manner as the beam inside a home TV picture tube. Injected into a nickel-size hole that runs the length of the copper tube, the beam's electrons are immediately accelerated by 6,000,000-watt microwave pulses generated by 245 klystrons-giant, ultrahigh-frequency radio tubes...