X-Nico

unusual facts about Catenary


Catenary

The Gateway Arch in St. Louis, Missouri, United States is sometimes said to be an (inverted) catenary, but this is incorrect.


Similar

catenary |

Arc length

In the 17th century, the method of exhaustion led to the rectification by geometrical methods of several transcendental curves: the logarithmic spiral by Evangelista Torricelli in 1645 (some sources say John Wallis in the 1650s), the cycloid by Christopher Wren in 1658, and the catenary by Gottfried Leibniz in 1691.

Căile Ferate Române

All are built for standard gauge (1435 mm) and run using a catenary wire at 50 Hz 25 kV AC.

Eladio Dieste

A particular innovation was his Gaussian vault, a thin-shell structure for roofs in single-thickness brick, that derives its stiffness and strength from a double curvature catenary arch form that resists buckling failure.

KTM Class 81

All Komuter EMUs operate in multiple-unit formation, running from overhead single-phase 25 kV AC 50 Hz catenary supply, with two driving cars and 1 - 3 trailer cars in between.

KTM Komuter

All Komuter EMUs operate in multiple-unit formation, running from overhead single-phase 25kV AC 50 Hz catenary supply, with two driving cars and 1 - 3 trailer cars in between.

Overhead line

The Northeast Corridor in the United States has catenary over the 600 miles (1000 km) between Boston, Massachusetts and Washington, D.C. for Amtrak's high-speed Acela Express and other trains.

Square wheel

In 1997 Macalester College mathematics professor Stan Wagon constructed the first prototype of a catenary tricycle.


see also