Search results
Results from the WOW.Com Content Network
A border barrier, border fence or border wall is a separation barrier that runs along or near an international border. Such barriers are typically constructed for border control purposes such as curbing illegal immigration , human trafficking , and smuggling .
If fence viewers are involved with a fence that is on a boundary line between two different towns, one fence viewer must be from each town. Maine fence viewers are paid $3 a per day. Any fence viewer who, when requested, unreasonably neglects to view any fence or to perform any other duties required of the fence viewer forfeits $3 to any person ...
In a virtual electric fence system, each animal has a collar with a GPS unit which is set to produce first an audible warning and then a shock as the animal approaches a programmable boundary. Pet fences to control domestic dogs have been used since 1973, and the first system for livestock control was developed by Peck's Invisible Fence Co, now ...
A fence is a structure that encloses an area, typically outdoors, and is usually constructed from posts that are connected by boards, wire, rails or netting. [1] A fence differs from a wall in not having a solid foundation along its whole length. [2] Alternatives to fencing include a ditch (sometimes filled with water, forming a moat).
Construction on the fence began in 2006, with each mile costing the U.S. government about $2.8 million. [87] In 2010, the initiative was terminated because of costs, after having completed 1,030 km (640 mi) of either barrier fence or vehicle barriers, that were either new or had been rebuilt over older, inferior fencing.
Two geofences defined in a GPS application. A geofence is a virtual "perimeter" or "fence" around a given geographic feature. [1] A geofence can be dynamically generated (as in a radius around a point location) or match a predefined set of boundaries (such as school zones or neighborhood boundaries).
The boundary marker was first established as a cairn of rocks in 1849 following the signing of the Treaty of Guadalupe Hidalgo. A white marble shaft was manufactured in New York, transported around Cape Horn on the USS Supply to San Diego, and erected and dedicated at the site in Imperial Beach in June, 1851. The marble monument was an obelisk ...
A boundary marker, border marker, boundary stone, or border stone is a robust physical marker that identifies the start of a land boundary or the change in a boundary, especially a change in direction of a boundary. [1] There are several other types of named border markers, known as boundary trees, [2] [3] pillars, monuments, obelisks, and ...