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Originally steam powered, the Duquesne Incline was designed by Samuel Diescher, a Hungarian-American civil engineer based in Pittsburgh, and completed in 1877.The incline is 800 feet (244 m) long, 400 feet (122 m) in height, and is inclined at a 30-degree angle.
The Mount Tsukuba Cable Car (筑波山ケーブルカー, Tsukubasan Kēburukā), officially the Mount Tsukuba Cable Railway Line (筑波山鋼索鉄道線, Tsukubasan Kōsaku Tetsudō-sen), is a Japanese funicular line on Mount Tsukuba, Tsukuba, Ibaraki.
The airborne AN/ARC-201 radio is phasing out [when?] the older tactical air-to-ground radios (AN/ARC-114 and AN/ARC-131). The SINCGARS is designed on a modular basis to achieve maximum commonality among various ground, maritime, and airborne configurations. A common receiver transmitter (RT) is used in the ground configurations.
Above 4 GHz, the slots may radiate signals, so the connector is usable, but not necessarily stable, up to about 11 GHz. BNC connectors are made to match the characteristic impedance of cable at either 50 ohms or 75 ohms (with other impedances such as 93 ohms for ARCNET available though less common).
On August 11, 1952, the U.S. Post Office issued the Mount Rushmore Memorial 3-cent commemorative stamp on the 25th anniversary of the dedication of the Mount Rushmore National Memorial. [107] On January 2, 1974, a 26-cent airmail stamp depicting the monument was also issued. [ 108 ]
Four-point measurement of resistance between voltage sense connections 2 and 3. Current is supplied via force connections 1 and 4. In electrical engineering, four-terminal sensing (4T sensing), 4-wire sensing, or 4-point probes method is an electrical impedance measuring technique that uses separate pairs of current-carrying and voltage-sensing electrodes to make more accurate measurements ...
Pole-mounted transformers may have lugs allowing direct mounting to a pole, or may be mounted on crossarms bolted to the pole. Aerial transformers, larger than around 75 kVA, may be mounted on a platform supported by one or more poles. [12] A three-phase service may use three identical transformers, one per phase.
Cable-stayed bridges with more than three spans involve significantly more challenging designs than do 2-span or 3-span structures. In a 2-span or 3-span cable-stayed bridge, the loads from the main spans are normally anchored back near the end abutments by stays in the end spans. For more spans, this is not the case and the bridge structure is ...
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