Word: tunnelling
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Dates: during 1990-1999
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...collider, true to its name, was to be an oval underground tunnel 55 miles in circumference that would smash subatomic particles together at speeds approaching that of light...
Many sections of the tunnel have chips in the concrete which are either left there, paved over or reinforced with steel...
...steam tunnels are not the University's only tunnel system. Food tunnels link five river houses to the University's central kitchen, says Michael P. Berry, the director of Harvard Dining Services...
...food tunnel system has its own quirky historical tales as well...
...funny stories are not the only connection between the two tunnel systems...