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The Portland Observatory is the only remaining maritime signal station in the United States. Tower operations were paid with annual fees collected from shipping merchants, who purchased the right to have their flags stored in the building and hoisted up its flagstaffs when their ships were sighted.
Assetto Corsa (Italian for "Race Setup") is a sim racing video game developed by the Italian video game developer Kunos Simulazioni. It is designed with an emphasis on a realistic racing experience with support for extensive customization and moddability .
Portland International Raceway (PIR) is a motorsport facility in Portland in the U.S. state of Oregon. It is part of the Delta Park complex on the former site of Vanport , just south of the Columbia River .
Portland Head Light is a historic lighthouse in Cape Elizabeth, Maine. The light station sits on a headland at the entrance of the primary shipping channel into Portland Harbor , which is within Casco Bay in the Gulf of Maine .
CAMS [3] networks around the world use an array of low-light video surveillance cameras to collect astrometric tracks and brightness profiles of meteors in the night sky. . Triangulation of those tracks results in the meteor's direction and speed, from which the meteors’ orbit in space is calculated and the material's parent body can be identifi
The Penobscot Narrows Bridge is one of three bridges in the US (the others being the Zakim Bridge in Boston, Massachusetts, and the Veterans' Glass City Skyway in Toledo, Ohio) constructed in the 2000s using a cradle system that carries the strands within the stays from bridge deck to bridge deck, as a continuous element, eliminating anchorages in the pylons. [1]
[3] [8] The Old Lower Lighthouse later became a bird observatory in 1961. [9] The Old Higher Lighthouse was owned by Marie Stopes from 1923 to 1958 and is now a holiday let. [10] A proper road to Portland Bill was laid in 1922 and this helped the Bill become a tourist destination. [2] [11] A coastguard lookout at Portland Bill was built in 1934.
Cartes du Ciel ("CDC" and "SkyChart") is a free and open source planetarium program for Linux, macOS, and Windows. [2] With the change to version 3, Linux has been added as a target platform, licensing has changed from freeware to GPLv2 and the project moved to a new website.