Zilker Metropolitan Park is a recreational area in south Austin, Texas at the juncture of Barton Creek and the Colorado River that comprises over 350 acres (142 ha) of publicly owned land. It is named after its benefactor, Andrew Jackson Zilker, who donated the land to the city in 1917. The land was developed into a park during the Great Depression in the 1930s. Today the park serves as a hub for many recreational activities and the hike and bike trail around Lady Bird Lake, both of which run next to the park. The large size of the park makes it a capable venue for large-scale events such as the Austin City Limits Music Festival and the Zilker Park Kite Festival. The park was listed in the National Register of Historic Places in 1997.
Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylight. Daylighting is sometimes used as the main source of light during daytime in buildings. This can save energy in place of using artificial lighting, which represents a major component of energy consumption in buildings. Proper lighting can enhance task performance, improve the appearance of an area, or have positive psychological effects on occupants.
Photometry is the science of the measurement of light, in terms of its perceived brightness to the human eye. It is distinct from radiometry, which is the science of measurement of radiant energy in terms of absolute power. In modern photometry, the radiant power at each wavelength is weighted by a luminosity function that models human brightness sensitivity. Typically, this weighting function is the photopic sensitivity function, although the scotopic function or other functions may also be applied in the same way. The weightings are standardized by the CIE and ISO.
Christmas lights are lights often used for decoration in celebration of Christmas, often on display throughout the Christmas season including Advent and Christmastide. The custom goes back to when Christmas trees were decorated with candles, which symbolized Christ being the light of the world. The Christmas trees were brought by Christians into their homes in early modern Germany.
The history of street lighting in the United States is closely linked to the urbanization of America. Artificial illumination has stimulated commercial activity at night, and has been tied to the country's economic development, including major innovations in transportation, particularly the growth in automobile use. In the two and a half centuries before LED lighting emerged as the new "gold standard", cities and towns across America relied on oil, coal gas, carbon arc, incandescent, and high-intensity gas discharge lamps for street lighting.
Zilker is a neighborhood in south central Austin, Texas. It extends south of Lady Bird Lake, approximately bounded by the Union Pacific Railway to the southeast/south, Barton Skyway to the south, Rabb Road and Azie Morton Road to the west and Lady Bird Lake to the north.
A moonlight tower or moontower is a lighting structure designed to illuminate areas of a town or city at night. Only the collection of towers in Austin, Texas, have been historically called "moonlight towers," a term that dates to the mid-20th century, although the light from the towers was compared to moonlight since they were installed in 1895.
The Rockefeller Center Christmas Tree is a large Christmas tree placed annually in Rockefeller Center, in Midtown Manhattan, New York City, United States. The tree is put in place in mid November and lit in a public ceremony on the Wednesday evening following Thanksgiving. Since 1997, the lighting has been broadcast live, to hundreds of millions, on NBC's Christmas in Rockefeller Center telecast. The tree lighting ceremony is aired at the end of every broadcast, following live entertainment and the tree is lit by the current Mayor of New York City, the CEO and president of Tishman Speyer and special guests. An estimated 125 million people visit the attraction each year.
Aviation obstruction lighting is used to enhance the visibility of structures or fixed obstacles which may conflict with the safe navigation of aircraft. Obstruction lighting is commonly installed on towers, buildings, and even fences located in areas where aircraft may be operating at low altitudes. In certain areas, some aviation regulators mandate the installation, operation, color, and/or status notification of obstruction lighting. For maximum visibility and collision-avoidance, these lighting systems commonly employ one or more high-intensity strobe or LED devices which can be seen by pilots from many miles away from the obstruction.
The National Christmas Tree is a large evergreen tree located in the northeast quadrant of the Ellipse near the White House in Washington, D.C. Each year since 1923, the tree has been decorated as a Christmas tree. Every year, early in December, the tree is traditionally lit by the President and First Lady of the United States. Every president since Franklin D. Roosevelt has also made formal remarks during the tree lighting ceremony.
A grow light is an electric light to help plants grow. Grow lights either attempt to provide a light spectrum similar to that of the sun, or to provide a spectrum that is more tailored to the needs of the plants being cultivated. Outdoor conditions are mimicked with varying colour temperatures and spectral outputs from the grow light, as well as varying the intensity of the lamps. Depending on the type of plant being cultivated, the stage of cultivation, and the photoperiod required by the plants, specific ranges of spectrum, luminous efficacy and color temperature are desirable for use with specific plants and time periods.
The PECO Building is a modernist office highrise in Center City Philadelphia. The building is the current headquarters of the PECO Energy Company, formerly the Philadelphia Energy Company (PECo), and one of the companies that merged to form the Exelon Corporation. The building lies adjacent to the Schuylkill River, extends 27 stories tall, and has the address of 2301 Market Street, Philadelphia, PA 19103.
The Richardson Building is a 34-storey office tower at the intersection of Portage and Main in Winnipeg, Manitoba, Canada. The building forms the anchor of the Lombard Place development, and is connected to Winnipeg Square shopping mall via the Portage and Main Concourse. The thirty-four storey building stands 124 metres tall (407 ft), making it the third tallest building in Winnipeg. It is dressed in granite chip pre-cast concrete and solar bronze double-glazed glass.
Holiday lighting technology has been subject to considerable development and variation since the replacement of candles by electric lights. While originally used during the Christmas holidays as Christmas lights, modern electric light arrays have become popular around the world in many cultures and are used both during religious festivals and for other purposes unconnected to any festivities.
The Peace Candle is a tower-like structure erected every Christmas season in Easton, Pennsylvania. The approximately 106-foot (32 m) tall structure, which resembles a giant candle, is assembled each year over the Soldiers' & Sailors' Monument, a Civil War memorial located in the city's Centre Square. It is typically assembled in mid November and lighted over Thanksgiving weekend and disassembled in early February each year.
St Bartholomew's Church is in the town of Great Harwood in Lancashire, England. It is an active Anglican parish church in the Diocese of Blackburn. The church is recorded in the National Heritage List for England as a designated Grade II* listed building.
High-mast lighting is a tall pole with lighting attached to the top pointing towards the ground, usually but not always used to light a highway or recreational field. It is used at sites that require lighting over a large area. The pole that the lighting is mounted on is generally at least 30 m (98 ft) tall, while the lighting consists of a luminaire ring surrounding the pole with one or several independent lighting fixtures mounted around it. Most units have four, six or eight lights in the ring, with three, five, ten, twelve and sixteen lights used in rarer instances. While most high-mast lights are high-pressure sodium, other types such as mercury vapor, metal halide and LED, have also been used. Some units have the lighting surrounded by a circular shield to prevent or reduce light pollution or light trespass from affecting neighborhoods adjacent to the highway. Maintenance of these systems is done by lowering the luminaire ring from the mast head to the base using a winch and motor to the ground or at a height accessible by a cherry picker and located in areas to allow for easier access without disrupting traffic.
The moonlight towers in Austin, Texas, are the only known surviving moonlight towers in the world. They are 165 feet (50 m) tall and have a 15-foot (4.6 m) foundation. A single tower casts light from six carbon arc lamps, illuminating a 1,500-foot-radius (460 m) circle brightly enough to read a watch.
The Fairmont Austin is a 37-story hotel located on 101 Red River St, in Downtown Austin, Texas. Groundbreaking for the project began on November 3, 2014. The hotel, at 1,400,000 square feet (130,000 m2), is the largest of the Fairmont hotel chain. The hotel tops out at 595 feet (181 m) tall, surpassing Austin's previous tallest hotel, the Hilton Austin Hotel. The Fairmont Austin also features a skyway connection to the Austin Convention Center.
The Keweenaw Waterway Lower Entrance Light, also known as the Portage Entry Light, is a lighthouse located at the south end of breakwater at mouth of the Portage River in Torch Lake Township. It was listed on the National Register of Historic Places in 2014.
