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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 use of a geofence is called geofencing , and one example of use involves a location-aware device of a location-based service (LBS) user entering or exiting a geofence.
Silt fence installed on a construction site. Silt fences are often installed as perimeter controls. They are typically used in combination with sediment basins and sediment traps, as well as with erosion controls, which are designed to retain sediment in place where soil is being disturbed by construction processes (i.e., land grading and other earthworks).
Electric fences were used to control livestock in the United States in the early 1930s, [citation needed] and electric fencing technology developed in both the United States and New Zealand. [sentence fragment] An early application of the electric fence for livestock control was developed in 1936–1937 by New Zealand inventor Bill Gallagher.
Governments use perimeter security not only for the safety of their citizens, but to control the flow of commerce and immigration, as well as to protect vital infrastructure from attackers. Property owners and organizations of all sizes use various man-made technology to achieve varying degrees of perimeter security.
The wave has become popular with surfers. Since 1999, an annual championship has been held in São Domingos do Capim (on the adjacent Guamá River ). However, surfing the Pororoca is especially dangerous, as the water contains a significant amount of debris from the shores of the river (often entire trees), in addition to dangerous fauna.
Amazon Lab126 [4] (sometimes known as Lab126) is an American research and development and computer hardware company owned by Amazon.com. [5] It was founded in 2004 by Gregg Zehr, [ 6 ] previously Vice President of Hardware Engineering at Palm , and is based in Sunnyvale, California . [ 7 ]
You can control it both through WiFi and Bluetooth, for short- and long-range play. Related Article: Best Sex Swings The sex toy syncs with audiobooks, making it a great choice if you like playing ...
In general relativity, a geon is a nonsingular electromagnetic or gravitational wave which is held together in a confined region by the gravitational attraction of its own field energy. They were first investigated theoretically in 1955 by J. A. Wheeler , who coined the term as a contraction of "gravitational electromagnetic entity".