Eiffel Tower In 1909, a permanent underground radio centre was built near the south pillar, which still exists today. On 20 November 1913, the Paris Observatory, using the Eiffel Tower as an aerial, exchanged wireless signals with the United States Naval Observatory, which used an aerial in Arlington, Virginia. The object of the transmissions was to measure the difference in longitude between Paris and Washington, D.C. Today, radio and digital television signals are transmitted from the Eiffel Tower. A television antenna was first installed on the tower in 1957, increasing its height by 18.7 m (61.4 ft). Work carried out in 2000
Eiffel Tower (Paris, Tennessee) The tower was designed to scale by Tom Morrison, professor emeritus of civil engineering; Jim Jacobs, assistant professor of mechanical engineering; and Roland Raffanti, engineering lab technician, from Christian Brothers University. According to Brother Patrick O'Brien, Morrison designed the model based on the original drawings of Gustave Eiffel. At tall, the tower is a nearly perfect 1:20 scale replica of the original. Built through the labor of more than 10,000 hours donated by CBU students, faculty, alumni, and friends, the tower contains 500 pieces of Douglas fir and 6,000 steel rods. The monument was assembled in CBU's Buckman Quadrangle. After